1
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Long Y, Gu Q, Wang C, Zhang X, Liu H, Liu L, Zhou Z. High-Entropy Fluorite Oxide-Modified CaO-Based Sorbent Pellets for Enhanced High-Temperature CO 2 Capture. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2406165. [PMID: 39126365 DOI: 10.1002/smll.202406165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2024] [Indexed: 08/12/2024]
Abstract
The calcium looping technology employing CaO-based sorbents is pivotal for capturing CO2 from flue gas. However, the intrinsic low thermodynamic stability of CaO-based sorbents and the requisite molding step induce severe sintering issues, diminishing their cyclic stability. Herein, a high-entropy fluorite oxide (HEFO) inert stabilizer premised on entropy stabilization and synergistic effect strategies is introduced. HEFO-modified, CaO-based sorbent pellets are synthesized via a rapid cigarette butt-assisted combustion process (15 min) combined with the graphite molding method. Post-multiple cycles, their CO2 capture capacity reaches 0.373 g g-1, which is 2.6-fold superior to that of pure CaO, demonstrating markedly enhanced anti-sintering properties. First, the subtle morphological and crystallographic modifications suggest that the inherent entropy stability of HEFO imparts robust thermal resistance. Concurrently, the disordered structure of single-phase HEFO exhibits a high affinity for CaO, resulting in an interface binding energy of -1.83 eV, in sharp contrast to the -0.112 eV of pure CaO, thereby restricting CaO migration. Additionally, the multi-element synergistic effect of HEFO reduces the energy barrier by 0.15 eV, leading to a 40% and 140% increase in carbonation and calcination rates, respectively. This work presents highly efficient and rapidly synthesized CaO-based sorbent pellets, showcasing promising potential for industrial application.
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Affiliation(s)
- Yun Long
- State Key Laboratory of Coal Combustion, School of Power and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Quan Gu
- State Key Laboratory of Coal Combustion, School of Power and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Changqing Wang
- State Key Laboratory of Coal Combustion, School of Power and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Xingqiang Zhang
- State Key Laboratory of Coal Combustion, School of Power and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Hongyi Liu
- State Key Laboratory of Coal Combustion, School of Power and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Lei Liu
- State Key Laboratory of Coal Combustion, School of Power and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Zijian Zhou
- State Key Laboratory of Coal Combustion, School of Power and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
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2
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Ahmadov R, Michtavy SS, Porosoff MD. Dual Functional Materials: At the Interface of Catalysis and Separations. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:9833-9841. [PMID: 38468456 PMCID: PMC11100017 DOI: 10.1021/acs.langmuir.3c03888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/27/2024] [Accepted: 02/29/2024] [Indexed: 03/13/2024]
Abstract
Dual functional materials (DFMs) are a promising approach to increase the energy efficiency of carbon capture and utilization by combining both steps into a single unit operation. In this Perspective, we analyze the challenges and opportunities of integrated carbon capture and utilization (ICCU) via a thermally driven process. We identify three key areas that will facilitate research progress toward industrially viable solutions: (1) selecting appropriate DFM operating conditions; (2) designing and characterizing interfacial site cooperativity for CO2 adsorption and hydrogenation; and (3) establishing standards for rigorous and comprehensive data reporting.
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Affiliation(s)
| | | | - Marc D. Porosoff
- Department of Chemical Engineering, University of Rochester, Rochester, New York 14627, United States
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3
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Perejón A, Arcenegui-Troya J, Sánchez-Jiménez PE, Diánez MJ, Pérez-Maqueda LA. Magnesium calcites for CO 2 capture and thermochemical energy storage using the calcium-looping process. ENVIRONMENTAL RESEARCH 2024; 246:118119. [PMID: 38191038 DOI: 10.1016/j.envres.2024.118119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/11/2023] [Accepted: 01/04/2024] [Indexed: 01/10/2024]
Abstract
In this study, a precipitation-based synthesis method has been employed to prepare magnesium calcites with the general formula Ca1-xMgxCO3, with the objective of use them in the calcium looping (CaL) process for CO2 capture (CaL-CCS) and thermochemical energy storage (CaL-CSP). The structure and microstructure of the samples have been characterized. It has been found by X-ray diffraction that the samples with a Ca:Mg molar ratio of 0.5:0.5 and 0.55:0.45 are phase pure, while the samples with molar ratios of 0.7:0.3 and 0.8:0.2 are composed by two phases with different stoichiometry. In addition, the sample prepared with calcium alone shows the aragonite phase. The microstructure of the magnesium-containing samples is composed of nanocrystals, which are aggregated in spherical particles whereas the aragonite sample presents a typical rod-like morphology. The multicycle tests carried out under CaL-CCS conditions show that an increase on the MgO content in the calcined samples results in a reduced value of effective conversion when compared to aragonite. On the other hand, under CaL-CSP conditions, the samples with the higher MgO content exhibit nearly stable effective conversion values around 0.5 after 20 cycles, which improve the results obtained for aragonite and those reported for natural dolomite tested under the same conditions.
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Affiliation(s)
- Antonio Perejón
- Instituto de Ciencia de Materiales de Sevilla, C. S. I. C.-Universidad de Sevilla, C. Américo Vespucio n(o)49, 41092, Sevilla, Spain; Departamento de Química Inorgánica, Facultad de Química, Universidad de Sevilla, 41012, Sevilla, Spain.
| | - Juan Arcenegui-Troya
- Department of Engineering, Universidad Loyola Andalucía, Avda. de las Universidades s/n, 41704, Dos Hermanas, Seville, Spain.
| | - Pedro E Sánchez-Jiménez
- Instituto de Ciencia de Materiales de Sevilla, C. S. I. C.-Universidad de Sevilla, C. Américo Vespucio n(o)49, 41092, Sevilla, Spain; Departamento de Química Inorgánica, Facultad de Química, Universidad de Sevilla, 41012, Sevilla, Spain.
| | - María Jesús Diánez
- Instituto de Ciencia de Materiales de Sevilla, C. S. I. C.-Universidad de Sevilla, C. Américo Vespucio n(o)49, 41092, Sevilla, Spain
| | - Luis A Pérez-Maqueda
- Instituto de Ciencia de Materiales de Sevilla, C. S. I. C.-Universidad de Sevilla, C. Américo Vespucio n(o)49, 41092, Sevilla, Spain.
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4
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Krödel M, Leroy C, Kim SM, Naeem MA, Kierzkowska A, Wu YH, Armutlulu A, Fedorov A, Florian P, Müller CR. Of Glasses and Crystals: Mitigating the Deactivation of CaO-Based CO 2 Sorbents through Calcium Aluminosilicates. JACS AU 2023; 3:3111-3126. [PMID: 38034972 PMCID: PMC10685428 DOI: 10.1021/jacsau.3c00475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/25/2023] [Accepted: 10/25/2023] [Indexed: 12/02/2023]
Abstract
CaO-based sorbents are cost-efficient materials for high-temperature CO2 capture, yet they rapidly deactivate over carbonation-regeneration cycles due to sintering, hindering their utilization at the industrial scale. Morphological stabilizers such as Al2O3 or SiO2 (e.g., introduced via impregnation) can improve sintering resistance, but the sorbents still deactivate through the formation of mixed oxide phases and phase segregation, rendering the stabilization inefficient. Here, we introduce a strategy to mitigate these deactivation mechanisms by applying (Al,Si)Ox overcoats via atomic layer deposition onto CaCO3 nanoparticles and benchmark the CO2 uptake of the resulting sorbent after 10 carbonation-regeneration cycles against sorbents with optimized overcoats of only alumina/silica (+25%) and unstabilized CaCO3 nanoparticles (+55%). 27Al and 29Si NMR studies reveal that the improved CO2 uptake and structural stability of sorbents with (Al,Si)Ox overcoats is linked to the formation of glassy calcium aluminosilicate phases (Ca,Al,Si)Ox that prevent sintering and phase segregation, probably due to a slower self-diffusion of cations in the glassy phases, reducing in turn the formation of CO2 capture-inactive Ca-containing mixed oxides. This strategy provides a roadmap for the design of more efficient CaO-based sorbents using glassy stabilizers.
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Affiliation(s)
- Maximilian Krödel
- Department
of Mechanical and Process Engineering, ETH
Zurich, Leonhardstrasse 21, 8092 Zurich, Switzerland
| | - César Leroy
- CNRS,
CEMHTI UPR3079, 1d Avenue
de la Recherche Scientifique, Orléans 45071, France
| | - Sung Min Kim
- Department
of Mechanical and Process Engineering, ETH
Zurich, Leonhardstrasse 21, 8092 Zurich, Switzerland
| | - Muhammad Awais Naeem
- Department
of Mechanical and Process Engineering, ETH
Zurich, Leonhardstrasse 21, 8092 Zurich, Switzerland
| | - Agnieszka Kierzkowska
- Department
of Mechanical and Process Engineering, ETH
Zurich, Leonhardstrasse 21, 8092 Zurich, Switzerland
| | - Yi-Hsuan Wu
- Department
of Mechanical and Process Engineering, ETH
Zurich, Leonhardstrasse 21, 8092 Zurich, Switzerland
| | - Andac Armutlulu
- Department
of Mechanical and Process Engineering, ETH
Zurich, Leonhardstrasse 21, 8092 Zurich, Switzerland
| | - Alexey Fedorov
- Department
of Mechanical and Process Engineering, ETH
Zurich, Leonhardstrasse 21, 8092 Zurich, Switzerland
| | - Pierre Florian
- CNRS,
CEMHTI UPR3079, 1d Avenue
de la Recherche Scientifique, Orléans 45071, France
| | - Christoph R. Müller
- Department
of Mechanical and Process Engineering, ETH
Zurich, Leonhardstrasse 21, 8092 Zurich, Switzerland
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5
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Mahmoud MS, Al-Aufi R, Al-Saidi A, Al-Samahi S, Al-Bulushi R, Rajan G, Abdelmouleh M, Jedidi I. Effect of compression molding of CaCO 3 powder on the kinetics of CO 2 capture towards sustainable CO 2 capture and sequestration cycle. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:110981-110994. [PMID: 37798519 DOI: 10.1007/s11356-023-30094-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 09/22/2023] [Indexed: 10/07/2023]
Abstract
Reducing CO2 emissions from industrial sectors and motor vehicles is currently receiving much attention. There are different strategies for CO2 capture, one of which is using calcium oxide (CaO). In our proposed carbon dioxide cycle, limestone is first calcined to get CaO, which is then used to capture CO2 by converting it to CaCO3. Next, the released CO2 could be converted to different organic matter by different sequestration techniques. For this purpose, CaCO3 discs have been prepared by compression molding to investigate the effect of sintering temperature on the mechanical and chemical properties of CaO carbonation reaction. The aim of this work is to fill the knowledge gap for the effect of the contact profile between CO2 gas and CaO disc, particularly the effect of reducing the void fraction of CaO on the rate of carbonation reaction. It was found that the flexural strength of the CaO discs was influenced by several factors, such as the calcination temperature, duration of calcination, and pressing pressure. The carbonation step indicated that both CO2 and H2O are reacting with CaO simultaneously and progressively, with the progressive reaction of H2O and CO2 being a favorable route. The carbonation process happens as a surface reaction-controlled process followed by a slower internal diffusion-controlled process. Additionally, a kinetic study of the competing reactions indicated that two factors are controlling the process: diffusion of gases through the pores and then the reaction rate. Furthermore, our data showed that the CO2 uptake rate was 1352.34 mg/g CaO, indicating that 566.34 mg of CO2 was adsorbed inside the pores of the CaO disc. Based on these results, we propose a new mechanism of the sequence of the competing reactions. In summary, the CaO discs revealed a significant removal of CO2 from stack gases, which will be suitable for removing CO2 from exhaust gases generated by industrial processes and other sources of emissions such as vehicles and ships.
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Affiliation(s)
- Mohamed S Mahmoud
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Suhar, 311, Sultanate of Oman.
- Faculty of Engineering, Chemical Engineering Department, Minia University, El Minia, 61516, Egypt.
| | - Rahma Al-Aufi
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Suhar, 311, Sultanate of Oman
| | - Awsaf Al-Saidi
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Suhar, 311, Sultanate of Oman
| | - Siham Al-Samahi
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Suhar, 311, Sultanate of Oman
| | - Rawan Al-Bulushi
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Suhar, 311, Sultanate of Oman
| | - Govinda Rajan
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Suhar, 311, Sultanate of Oman
| | - Makki Abdelmouleh
- Laboratory of Materials Science and Environment (LMSE), Faculty of Science of Sfax, University of Sfax, 4,5 Km SoukraBlvd, 3018, Sfax, Tunisia
| | - Ilyes Jedidi
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Suhar, 311, Sultanate of Oman
- Laboratory of Materials Science and Environment (LMSE), Faculty of Science of Sfax, University of Sfax, 4,5 Km SoukraBlvd, 3018, Sfax, Tunisia
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6
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Díaz M, Alonso M, Grasa G, Fernández JR. The Ca-Cu looping process using natural CO2 sorbents in a packed bed: Operation strategies to accommodate activity decay. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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7
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Bittencourt FLF, Martins MF, Orlando MTD. Integrating in-bed gas looping and CO 2 capture in the FeD-Latrine. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160133. [PMID: 36402333 DOI: 10.1016/j.scitotenv.2022.160133] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/07/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Sanitation equity and climate actions are world concerns stated by the United Nations in the Sustainable Development Goals. A significant source of greenhouse gas emissions is inputted by human wastes, either in developing countries through wastewater treatment plants, or in the underdeveloped world, through anaerobic digestion of fecal sludge in pit latrines. For the first time, an integrated process for CO2 reduction and capture is implemented in a thermally sustainable, latrine-like device that destroys fresh human feces using smoldering combustion, the FeD-Latrine. A gas looping oxidizes combustible gases and creates favorable conditions to capture CO2 in bed. CH4 and H2 molar fractions are decreased around 90 % and 30 %, respectively. CaO used as a sorbent captures up to 8 mmol of CO2 per gram, forming a stable CaCO3. Compared to kinetic-dominant processes for CO2 capture, we obtain an efficiency of around 52 %. Our findings show that using the FeD-Latrine to replace typical pit latrines reduces 60 % of the CO2-eq emissions.
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Affiliation(s)
- Flávio Lopes Francisco Bittencourt
- Federal Institute of Espirito Santo, 660 Augusto Costa de Oliveira St., Piuma 29285-000, Brazil; Laboratory of Combustion and Combustible Matter, PPGEM, Federal University of Espirito Santo, 514 Fernando Ferrari Av., Vitoria 29075-910, Brazil
| | - Márcio Ferreira Martins
- Laboratory of Combustion and Combustible Matter, PPGEM, Federal University of Espirito Santo, 514 Fernando Ferrari Av., Vitoria 29075-910, Brazil.
| | - Marcos Tadeu D Orlando
- Laboratory of Combustion and Combustible Matter, PPGEM, Federal University of Espirito Santo, 514 Fernando Ferrari Av., Vitoria 29075-910, Brazil
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8
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High Temperature CO 2 Capture Performance and Kinetic Analysis of Novel Potassium Stannate. Int J Mol Sci 2023; 24:ijms24032321. [PMID: 36768642 PMCID: PMC9917123 DOI: 10.3390/ijms24032321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/16/2023] [Accepted: 01/19/2023] [Indexed: 01/26/2023] Open
Abstract
For the first time, the use of stannate-based sorbents was investigated as high temperature CO2 sorption to evaluate their potential to contribute towards reducing carbon emissions. The sorption capacity and kinetics of commercial tin oxide, sodium, potassium and calcium stannates and lab synthesised potassium stannates were tested using thermogravimetric analysis. Commercial K2SnO3 was found to possess the largest CO2 uptake capacity (2.77 mmol CO2/g or 12.2 wt%) at 700 °C, which is among the highest for potassium sorbents, but the CO2 desorption was not successful. On the contrary, the in-house synthesised K-stannate (K-B) using facile solid-state synthesis outperformed the other sorbents, resulting in a CO2 uptake of 7.3 wt% after 5 min, an adsorption rate (0.016 mg/s) one order of magnitude higher than the other stannates, and stability after 40 cycles. The XRD and XPS analyses showed that K-B contains a mixture of K2SnO3 (76%) and K4SnO4 (21%), while the Scherrer crystal sizes confirmed good resistance to sintering for the potassium stannates. Among the apparent kinetic model tested, the pseudo-second order model was the most suitable to predict the CO2 sorption process of K-B, indicating that chemical adsorption is dominant, while film-diffusion resistance and intra-particle diffusion resistance governed the sorption process in K-B. In summary, this work shows that solid-state synthesised potassium stannate could be an effective sorbent for high temperature separation, and additional work is required to further elucidate its potential.
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9
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Grasa G, Díaz M, Fernández J, Amieiro A, Brandt J, Abanades J. Blast Furnace Gas decarbonisation through Calcium Assisted Steel-mill Off-gas Hydrogen production. Experimental and modelling approach. Chem Eng Res Des 2023. [DOI: 10.1016/j.cherd.2023.01.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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10
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Dong J, Peng Y, Li J, Liu ZW, Hu R. CO 2 capture and conversion to syngas via dry reforming of C 3H 8 over a Pt/ZrO 2–CaO catalyst. Catal Sci Technol 2023. [DOI: 10.1039/d3cy00049d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Pt/ZrO2–5CaO could capture 10.3 mmol CO2 g−1 and convert it to syngas completely in C3H8 with little intensive energy swing.
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Affiliation(s)
- Jingjing Dong
- Key Laboratory of Syngas Conversion of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China
| | - Yang Peng
- Key Laboratory of Syngas Conversion of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China
| | - Juanting Li
- Key Laboratory of Syngas Conversion of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China
| | - Zhong-wen Liu
- Key Laboratory of Syngas Conversion of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China
| | - Rongrong Hu
- Key Laboratory of Syngas Conversion of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China
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11
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Landuyt A, Kumar PV, Yuwono JA, Bork AH, Donat F, Abdala PM, Müller CR. Uncovering the CO 2 Capture Mechanism of NaNO 3-Promoted MgO by 18O Isotope Labeling. JACS AU 2022; 2:2731-2741. [PMID: 36590255 PMCID: PMC9795564 DOI: 10.1021/jacsau.2c00461] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 06/17/2023]
Abstract
MgO-based CO2 sorbents promoted with molten alkali metal nitrates (e.g., NaNO3) have emerged as promising materials for CO2 capture and storage technologies due to their low cost and high theoretical CO2 uptake capacities. Yet, the mechanism by which molten alkali metal nitrates promote the carbonation of MgO (CO2 capture reaction) remains debated and poorly understood. Here, we utilize 18O isotope labeling experiments to provide new insights into the carbonation mechanism of NaNO3-promoted MgO sorbents, a system in which the promoter is molten under operation conditions and hence inherently challenging to characterize. To conduct the 18O isotope labeling experiments, we report a facile and large-scale synthesis procedure to obtain labeled MgO with a high 18O isotope content. We use Raman spectroscopy and in situ thermogravimetric analysis in combination with mass spectrometry to track the 18O label in the solid (MgCO3), molten (NaNO3), and gas (CO2) phases during the CO2 capture (carbonation) and regeneration (decarbonation) reactions. We discovered a rapid oxygen exchange between CO2 and MgO through the reversible formation of surface carbonates, independent of the presence of the promoter NaNO3. On the other hand, no oxygen exchange was observed between NaNO3 and CO2 or NaNO3 and MgO. Combining the results of the 18O labeling experiments, with insights gained from atomistic calculations, we propose a carbonation mechanism that, in the first stage, proceeds through a fast, surface-limited carbonation of MgO. These surface carbonates are subsequently dissolved as [Mg2+···CO3 2-] ionic pairs in the molten NaNO3 promoter. Upon reaching the solubility limit, MgCO3 crystallizes at the MgO/NaNO3 interface.
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Affiliation(s)
- Annelies Landuyt
- Laboratory
of Energy Science and Engineering, Department of Mechanical and Process
Engineering, Eidgenössische Technische
Hochschule (ETH) Zürich, Zürich8092, Switzerland
| | - Priyank V. Kumar
- School
of Chemical Engineering, The University
of New South Wales (UNSW Sydney), Sydney, New South Wales2052Australia
| | - Jodie A. Yuwono
- School
of Chemical Engineering, The University
of New South Wales (UNSW Sydney), Sydney, New South Wales2052Australia
| | - Alexander H. Bork
- Laboratory
of Energy Science and Engineering, Department of Mechanical and Process
Engineering, Eidgenössische Technische
Hochschule (ETH) Zürich, Zürich8092, Switzerland
| | - Felix Donat
- Laboratory
of Energy Science and Engineering, Department of Mechanical and Process
Engineering, Eidgenössische Technische
Hochschule (ETH) Zürich, Zürich8092, Switzerland
| | - Paula M. Abdala
- Laboratory
of Energy Science and Engineering, Department of Mechanical and Process
Engineering, Eidgenössische Technische
Hochschule (ETH) Zürich, Zürich8092, Switzerland
| | - Christoph R. Müller
- Laboratory
of Energy Science and Engineering, Department of Mechanical and Process
Engineering, Eidgenössische Technische
Hochschule (ETH) Zürich, Zürich8092, Switzerland
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12
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Gao C, Zhang Y, Li D, Li M. Highly Cyclic Stability and Absorbent Activity of Carbide Slag Doped with MgO and ZnO for Thermochemical Energy Storage. ACS OMEGA 2022; 7:45443-45454. [PMID: 36530263 PMCID: PMC9753510 DOI: 10.1021/acsomega.2c06061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/18/2022] [Indexed: 06/17/2023]
Abstract
Carbide slag is a solid waste with a high content of reactive CaO, which can be used as an active material for the chemical absorption of CO2 and calcium looping. Calcium looping of CaO-based absorbents is one of the most promising methods of thermochemical energy storage. However, the sintering of pores and a reduction in the CO2 diffusion rates as the carbonization/calcination cyclic reaction progresses have posed challenges to the practical application of CaO-based absorbents. This study proposes a method for alleviating the sintering of the pore structure by improving the activity and cycling stability of such absorbents by doping carbide slag with MgO and ZnO powders. Results showed that the raw material ratio, reaction temperature, and reaction time have a considerable influence on the CO2 absorption rate. Furthermore, the specific surface area and pore volume of the absorbents increased with increasing ZnO and MgO doping levels in the carbide slag. Thus, the problems of sintering and clogging of pores in CaO-based absorbents were effectively alleviated, and the MgO and ZnO-doped absorbents CMZ85 and CMZ90 maintained 41-42% CO2 absorption after 10 cycles. These results confirmed that the cyclic stability and absorbent activity improved significantly with the MgO and ZnO doping of carbide slag for the calcium looping process.
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Affiliation(s)
- Caiyun Gao
- School
of Chemistry and Chemical Engineering, North
Minzu University, Yinchuan750021, P. R. China
- Ningxia
Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan750021, P. R. China
- Key
Laboratory for Chemical Engineering and Technology, State Ethnic Affairs
Commission, North Minzu University, Yinchuan750021, P. R. China
| | - Yuan Zhang
- School
of Chemistry and Chemical Engineering, North
Minzu University, Yinchuan750021, P. R. China
| | - Dong Li
- School
of Material Science and Engineering, North
Minzu University, Yinchuan750021, P. R. China
| | - Mei Li
- School
of Chemistry and Chemical Engineering, North
Minzu University, Yinchuan750021, P. R. China
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13
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Krödel M, Oing A, Negele J, Landuyt A, Kierzkowska A, Bork AH, Donat F, Müller CR. Yolk-shell-type CaO-based sorbents for CO 2 capture: assessing the role of nanostructuring for the stabilization of the cyclic CO 2 uptake. NANOSCALE 2022; 14:16816-16828. [PMID: 36250268 PMCID: PMC9685369 DOI: 10.1039/d2nr04492g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Improving the cyclic CO2 uptake stability of CaO-based solid sorbents can provide a means to lower CO2 capture costs. Here, we develop nanostructured yolk(CaO)-shell(ZrO2) sorbents with a high cyclic CO2 uptake stability which outperform benchmark CaO nanoparticles after 20 cycles (0.17 gCO2 gSorbent-1) by more than 250% (0.61 gCO2 gSorbent-1), even under harsh calcination conditions (i.e. 80 vol% CO2 at 900 °C). By comparing the yolk-shell sorbents to core-shell sorbents, i.e. structures with an intimate contact between the stabilizing phase and CaO, we are able to identify the main mechanisms behind the stabilization of the CO2 uptake. While a yolk-shell architecture stabilizes the morphology of single CaO nanoparticles over repeated cycling and minimizes the contact between the yolk and shell materials, core-shell architectures lead to the formation of a thick CaZrO3-shell around CaO particles, which limits CO2 transport to unreacted CaO. Hence, yolk-shell architectures effectively delay CaZrO3 formation which in turn increases the theoretically possible CO2 uptake since CaZrO3 is CO2-capture-inert. In addition, we observe that yolk-shell architectures also improved the carbonation kinetics in both the kinetic- and diffusion-controlled regimes leading to a significantly higher cyclic CO2 uptake for yolk-shell-type sorbents.
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Affiliation(s)
- Maximilian Krödel
- Department of Mechanical and Process Engineering, Laboratory of Energy Science and Engineering, ETH Zurich, Leonhardstrasse 21, 8092, Zurich, Switzerland.
| | - Alexander Oing
- Department of Mechanical and Process Engineering, Laboratory of Energy Science and Engineering, ETH Zurich, Leonhardstrasse 21, 8092, Zurich, Switzerland.
| | - Jan Negele
- Department of Mechanical and Process Engineering, Laboratory of Energy Science and Engineering, ETH Zurich, Leonhardstrasse 21, 8092, Zurich, Switzerland.
| | - Annelies Landuyt
- Department of Mechanical and Process Engineering, Laboratory of Energy Science and Engineering, ETH Zurich, Leonhardstrasse 21, 8092, Zurich, Switzerland.
| | - Agnieszka Kierzkowska
- Department of Mechanical and Process Engineering, Laboratory of Energy Science and Engineering, ETH Zurich, Leonhardstrasse 21, 8092, Zurich, Switzerland.
| | - Alexander H Bork
- Department of Mechanical and Process Engineering, Laboratory of Energy Science and Engineering, ETH Zurich, Leonhardstrasse 21, 8092, Zurich, Switzerland.
| | - Felix Donat
- Department of Mechanical and Process Engineering, Laboratory of Energy Science and Engineering, ETH Zurich, Leonhardstrasse 21, 8092, Zurich, Switzerland.
| | - Christoph R Müller
- Department of Mechanical and Process Engineering, Laboratory of Energy Science and Engineering, ETH Zurich, Leonhardstrasse 21, 8092, Zurich, Switzerland.
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14
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Singh V, Buelens LC, Poelman H, Saeys M, Marin GB, Galvita VV. Intensifying blue hydrogen production by in situ CO2 utilisation. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Balsamo M, Montagnaro F. Fractal-like random pore model applied to CO2 capture by CaO sorbent. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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16
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17
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18
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Liu J, Xuan Y, Teng L, Zhu Q, Liu X. Pore-Scaled investigation on dynamic carbonation mechanism of calcium oxide particles. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2021.117212] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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19
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Chang RW, Lin CJ, Liou YH. Multicycle Performance of CaTiO 3 Decorated CaO-Based CO 2 Adsorbent Prepared by a Versatile Aerosol Assisted Self-Assembly Method. NANOMATERIALS 2021; 11:nano11123188. [PMID: 34947536 PMCID: PMC8703767 DOI: 10.3390/nano11123188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/17/2021] [Accepted: 11/18/2021] [Indexed: 11/16/2022]
Abstract
Calcium oxide (CaO) is a promising adsorbent to separate CO2 from flue gas. However, with cycling of carbonation/decarbonation at high temperature, the serious sintering problem causes its capture capacity to decrease dramatically. A CaTiO3-decorated CaO-based CO2 adsorbent was prepared by a continuous and simple aerosol-assisted self-assembly process in this work. Results indicated that CaTiO3 and CaO formed in the adsorbent, whereas CaO gradually showed a good crystalline structure with increased calcium loading. Owing to the high thermal stability of CaTiO3, it played a role in suppressing the sintering effect and maintaining repeated high-temperature carbonation and decarbonation processes. When the calcium and titanium ratio was 3, the CO2 capture capacity was as large as 7 mmol/g with fast kinetics. After 20 cycles under mild regeneration conditions (700 °C, N2), the performance of CO2 capture of CaTiO3-decorated CaO-based adsorbent nearly unchanged. Even after 10 cycles under severe regeneration conditions (920 °C, CO2), the performance of CO2 capture still remained nearly 70% compared to the first cycle. The addition of CaTiO3 induced good and firm CaO dispersion on its surface. Excellent kinetics and stability were evident.
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Affiliation(s)
- Ren-Wei Chang
- Department of Geosciences, National Taiwan University, Taipei 106, Taiwan;
- Research Center for Future Earth, National Taiwan University, Taipei 106, Taiwan
| | - Chin-Jung Lin
- Department of Environmental Engineering, National Ilan University, Yilan 260, Taiwan
- Correspondence: (C.-J.L.); (Y.-H.L.)
| | - Ya-Hsuan Liou
- Department of Geosciences, National Taiwan University, Taipei 106, Taiwan;
- Research Center for Future Earth, National Taiwan University, Taipei 106, Taiwan
- Correspondence: (C.-J.L.); (Y.-H.L.)
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20
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Ma X, Li X, Cui H, Zhang W, Cheng Z, Zhou Z. Metal oxide‐doped Ni/
CaO
dual‐function materials for integrated
CO
2
capture and conversion: Performance and mechanism. AIChE J 2021. [DOI: 10.1002/aic.17520] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiaoling Ma
- School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Xinlei Li
- School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Hongjie Cui
- School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Wenhui Zhang
- School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Zhenmin Cheng
- School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Zhiming Zhou
- School of Chemical Engineering East China University of Science and Technology Shanghai China
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21
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Dunstan MT, Donat F, Bork AH, Grey CP, Müller CR. CO 2 Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances. Chem Rev 2021; 121:12681-12745. [PMID: 34351127 DOI: 10.1021/acs.chemrev.1c00100] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Carbon dioxide capture and mitigation form a key part of the technological response to combat climate change and reduce CO2 emissions. Solid materials capable of reversibly absorbing CO2 have been the focus of intense research for the past two decades, with promising stability and low energy costs to implement and operate compared to the more widely used liquid amines. In this review, we explore the fundamental aspects underpinning solid CO2 sorbents based on alkali and alkaline earth metal oxides operating at medium to high temperature: how their structure, chemical composition, and morphology impact their performance and long-term use. Various optimization strategies are outlined to improve upon the most promising materials, and we combine recent advances across disparate scientific disciplines, including materials discovery, synthesis, and in situ characterization, to present a coherent understanding of the mechanisms of CO2 absorption both at surfaces and within solid materials.
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Affiliation(s)
- Matthew T Dunstan
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Felix Donat
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, 8092 Zürich, Switzerland
| | - Alexander H Bork
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, 8092 Zürich, Switzerland
| | - Clare P Grey
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Christoph R Müller
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, 8092 Zürich, Switzerland
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22
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Li M, Yu F, Ren L, Li L, Wu Y. Dual Anti‐Sintering Mechanism of Highly Stable CaO‐Based Sorbent and Enhanced Kinetics. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202100080] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mingchun Li
- Shenyang University of Technology College of Materials Science and Engineering 110870 Shenyang China
| | - Fuyuan Yu
- Shenyang University of Technology College of Materials Science and Engineering 110870 Shenyang China
| | - Long Ren
- Shenyang University of Technology College of Materials Science and Engineering 110870 Shenyang China
| | - Laishi Li
- Shenyang University of Technology College of Materials Science and Engineering 110870 Shenyang China
| | - Yusheng Wu
- Shenyang University of Technology College of Materials Science and Engineering 110870 Shenyang China
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23
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Affiliation(s)
- Cameron Halliday
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - T. Alan Hatton
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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24
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Haridharan N, Lee GJ, Anandan S, Sorrentino A, Chuang YH, Liu CH, Wu JJ. Effective carbon dioxide sorption by using phyllosilicate anchored poly(quaternary-ammoniumhydroxidemethyl styrene) nanocomposites. ENVIRONMENTAL TECHNOLOGY 2021; 43:1-11. [PMID: 34057402 DOI: 10.1080/09593330.2021.1937707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 05/16/2021] [Indexed: 06/12/2023]
Abstract
Polymers are highly promising materials for capturing carbon dioxide (CO2), a greenhouse gas. Hence in this work, we prepared phyllosilicate supported mesoporous polymer via reversible addition-fragmentation chain transfer (RAFT) polymerisation, which is the one among the controlled radical polymerisation. The mesoporous material anchored on dodecanethiol trithiocarbonate acts as a chain transfer agent (CTA) for the polymerisation of chloromethyl styrene and further conversion to quaternary ammonium compound which is effective to trap CO2 using tertiary amine. The synthesised porous phyllosilicate/polymer nanocomposites have been characterised by using various analytical tools. The CO2 sorption experiments were carried out by passing CO2 onto the synthesised porous phyllosilicate/polymer nanocomposites. The sorption kinetics was monitored by X-Ray photoelectron spectroscopy (XPS) and Fourier-transform infrared spectroscopy (FT-IR) spectra in the presence of carbonate were obtained by reaction of quaternary ammonium hydroxide and CO2. The phyllosilicate anchored macromolecular CTA (macro-CTA) and the surface-initiated polymer nanocomposites encompassed apparent surface areas of 94.5 and 26.8 m2 g-1, respectively. In addition, the total pore volumes calculated for the macro-CTA and polymer were found to be 0.27 and 0.095 cm3g-1, while the average pore sizes were 14.24 and 11.46 nm, respectively. The CO2 sorption capacity of the phyllosilicate/polymer nanocomposites, monitored at different temperatures, is the fastest for 25°C but slower for the sample treated at 50°C which may due to the dipole and quadrupole interaction.
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Affiliation(s)
- Neelamegan Haridharan
- Department of Environmental Engineering and Science, Feng Chia University, Taichung, Taiwan
- Department of Chemistry, Vel Tech Rangarajan Dr. Sagunthala R & D Institute of Science and Technology, Avadi, Tamil Nadu, India
| | - Gang-Juan Lee
- Department of Environmental Engineering and Science, Feng Chia University, Taichung, Taiwan
| | - Sambandam Anandan
- Nanomaterials & Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Trichy, India
| | - Andrea Sorrentino
- Institute for Polymer, Composites and Biomaterials (IPCB), Italian National Research Council (CNR), Portici, Italy
| | - Ya-Hui Chuang
- Department of Soil and Environmental Sciences, National Chung-Hsing University, Taichung, Taiwan
| | - Cheng-Hua Liu
- Department of Environmental Engineering and Science, Feng Chia University, Taichung, Taiwan
| | - Jerry J Wu
- Department of Environmental Engineering and Science, Feng Chia University, Taichung, Taiwan
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25
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Abstract
Carbon capture from large sources and ambient air is one of the most promising strategies to curb the deleterious effect of greenhouse gases. Among different technologies, CO2 adsorption has drawn widespread attention mostly because of its low energy requirements. Considering that water vapor is a ubiquitous component in air and almost all CO2-rich industrial gas streams, understanding its impact on CO2 adsorption is of critical importance. Owing to the large diversity of adsorbents, water plays many different roles from a severe inhibitor of CO2 adsorption to an excellent promoter. Water may also increase the rate of CO2 capture or have the opposite effect. In the presence of amine-containing adsorbents, water is even necessary for their long-term stability. The current contribution is a comprehensive review of the effects of water whether in the gas feed or as adsorbent moisture on CO2 adsorption. For convenience, we discuss the effect of water vapor on CO2 adsorption over four broadly defined groups of materials separately, namely (i) physical adsorbents, including carbons, zeolites and MOFs, (ii) amine-functionalized adsorbents, and (iii) reactive adsorbents, including metal carbonates and oxides. For each category, the effects of humidity level on CO2 uptake, selectivity, and adsorption kinetics under different operational conditions are discussed. Whenever possible, findings from different sources are compared, paying particular attention to both similarities and inconsistencies. For completeness, the effect of water on membrane CO2 separation is also discussed, albeit briefly.
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Affiliation(s)
- Joel M Kolle
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Mohammadreza Fayaz
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Abdelhamid Sayari
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
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26
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Xu Z, Jiang T, Zhang H, Zhao Y, Ma X, Wang S. Efficient MgO-doped CaO sorbent pellets for high temperature CO2 capture. Front Chem Sci Eng 2021. [DOI: 10.1007/s11705-020-1981-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Krödel M, Landuyt A, Abdala PM, Müller CR. Mechanistic Understanding of CaO-Based Sorbents for High-Temperature CO 2 Capture: Advanced Characterization and Prospects. CHEMSUSCHEM 2020; 13:6259-6272. [PMID: 33052036 PMCID: PMC7984342 DOI: 10.1002/cssc.202002078] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/11/2020] [Indexed: 06/11/2023]
Abstract
Carbon dioxide capture and storage technologies are short to mid-term solutions to reduce anthropogenic CO2 emissions. CaO-based sorbents have emerged as a viable class of cost-efficient CO2 sorbents for high temperature applications. Yet, CaO-based sorbents are prone to deactivation over repeated CO2 capture and regeneration cycles. Various strategies have been proposed to improve their cyclic stability and rate of CO2 uptake including the addition of promoters and stabilizers (e. g., alkali metal salts and metal oxides), as well as nano-structuring approaches. However, our fundamental understanding of the underlying mechanisms through which promoters or stabilizers affect the performance of the sorbents is limited. With the recent application of advanced characterization techniques, new insight into the structural and morphological changes that occur during CO2 uptake and regeneration has been obtained. This review summarizes recent advances that have improved our mechanistic understanding of CaO-based CO2 sorbents with and without the addition of stabilizers and/or promoters, with a specific emphasis on the application of advanced characterization techniques.
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Affiliation(s)
- Maximilian Krödel
- Department of Mechanical and Process EngineeringLaboratory of Energy Science and Engineering ETH ZürichLeonhardstrasse 218092ZürichSwitzerland
| | - Annelies Landuyt
- Department of Mechanical and Process EngineeringLaboratory of Energy Science and Engineering ETH ZürichLeonhardstrasse 218092ZürichSwitzerland
| | - Paula M. Abdala
- Department of Mechanical and Process EngineeringLaboratory of Energy Science and Engineering ETH ZürichLeonhardstrasse 218092ZürichSwitzerland
| | - Christoph R. Müller
- Department of Mechanical and Process EngineeringLaboratory of Energy Science and Engineering ETH ZürichLeonhardstrasse 218092ZürichSwitzerland
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28
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Li Z. General rate equation theory for gas–solid reaction kinetics and its application to CaO carbonation. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115902] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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29
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Synthesis and Formation Mechanism of Limestone-Derived Porous Rod Hierarchical Ca-based Metal-Organic Framework for Efficient CO 2 Capture. MATERIALS 2020; 13:ma13194297. [PMID: 32993076 PMCID: PMC7579375 DOI: 10.3390/ma13194297] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/18/2020] [Accepted: 09/23/2020] [Indexed: 11/17/2022]
Abstract
Limestone is a relatively abundant and low-cost material used for producing calcium oxide as a CO2 adsorbent. However, the CO2 capture capacity of limestone decreases rapidly after multiple carbonation/calcination cycles. To improve the CO2 capture performance, we developed a process using limestone to transform the material into a rod Ca-based metal-organic framework (Ca-MOF) via a hydrothermal process with the assistance of acetic acid and terephthalic acid (H2BDC). The structural formation of rod Ca-MOF may result from the (200) face-oriented attachment growth of Ca-MOF sheets. Upon heat treatment, a highly stable porous rod network with a calcined Ca-MOF-O structure was generated with a pore distribution of 50-100 nm, which allowed the rapid diffusion of CO2 into the interior of the sorbent and enhanced the CO2 capture capacity with high multiple carbonation-calcination cycle stability compared to limestone alone at the intermediate temperature of 450 °C. The CO2 capture capacity of the calcined porous Ca-MOF-O network reached 52 wt% with a CO2 capture stability of 80% after 10 cycles. The above results demonstrated that rod Ca-MOF can be synthesized from a limestone precursor to form a porous network structure as a CO2 capture sorbent to improve CO2 capture performance at an intermediate temperature, thus suggesting its potential in environmental applications.
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30
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The Role of Alkali and Alkaline Earth Metals in the CO2 Methanation Reaction and the Combined Capture and Methanation of CO2. Catalysts 2020. [DOI: 10.3390/catal10070812] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
CO2 methanation has great potential for the better utilization of existing carbon resources via the transformation of spent carbon (CO2) to synthetic natural gas (CH4). Alkali and alkaline earth metals can serve both as promoters for methanation catalysts and as adsorbent phases upon the combined capture and methanation of CO2. Their promotion effect during methanation of carbon dioxide mainly relies on their ability to generate new basic sites on the surface of metal oxide supports that favour CO2 chemisorption and activation. However, suppression of methanation activity can also occur under certain conditions. Regarding the combined CO2 capture and methanation process, the development of novel dual-function materials (DFMs) that incorporate both adsorption and methanation functions has opened a new pathway towards the utilization of carbon dioxide emitted from point sources. The sorption and catalytically active phases on these types of materials are crucial parameters influencing their performance and stability and thus, great efforts have been undertaken for their optimization. In this review, we present some of the most recent works on the development of alkali and alkaline earth metal promoted CO2 methanation catalysts, as well as DFMs for the combined capture and methanation of CO2.
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31
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Dal Pozzo A, Lazazzara L, Antonioni G, Cozzani V. Techno-economic performance of HCl and SO 2 removal in waste-to-energy plants by furnace direct sorbent injection. JOURNAL OF HAZARDOUS MATERIALS 2020; 394:122518. [PMID: 32217421 DOI: 10.1016/j.jhazmat.2020.122518] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 02/15/2020] [Accepted: 03/10/2020] [Indexed: 06/10/2023]
Abstract
With the impending release of Best Available Techniques (BAT) conclusions on waste incineration, existing European waste-to-energy (WtE) plants will be required to achieve a higher efficiency in the removal of several target pollutants, such as acid gases (above all, HCl and SO2). The direct injection of a sorbent in the furnace as a primary deacidification stage may be a cost-effective option to achieve the required performances. The present study investigated the furnace injection of a specific dolomitic sorbent, with the aim of identifying the techno-economic optimum for the sorbent feed rate considering different scenarios of flue gas composition. A full-scale test run campaign was carried out on two WtE plants and a phenomenological model linking HCl and SO2 conversion to reactant feed rate was developed. The model allowed assessing the cost-effectiveness of dolomitic sorbent furnace injection for WtE plants equipped with either a single or a two-stage acid gas treatment system. The addition of dolomitic sorbent resulted particularly suitable for WtE plants equipped with a single stage treatment coping with a high SO2 concentration in the flue gas, where the injection of dolomitic sorbent can increase the redundancy of flue gas treatment with a reduction of the total operating costs.
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Affiliation(s)
- Alessandro Dal Pozzo
- LISES - Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Alma Mater Studiorum, Università di Bologna, via Terracini n.28, 40131 Bologna, Italy
| | - Lorenzo Lazazzara
- LISES - Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Alma Mater Studiorum, Università di Bologna, via Terracini n.28, 40131 Bologna, Italy
| | - Giacomo Antonioni
- LISES - Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Alma Mater Studiorum, Università di Bologna, via Terracini n.28, 40131 Bologna, Italy
| | - Valerio Cozzani
- LISES - Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Alma Mater Studiorum, Università di Bologna, via Terracini n.28, 40131 Bologna, Italy.
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32
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Multi-Metals CaMgAl Metal-Organic Framework as CaO-based Sorbent to Achieve Highly CO 2 Capture Capacity and Cyclic Performance. MATERIALS 2020; 13:ma13102220. [PMID: 32408628 PMCID: PMC7287868 DOI: 10.3390/ma13102220] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/28/2020] [Accepted: 05/07/2020] [Indexed: 11/22/2022]
Abstract
In this study, Ca-based multi-metals metal-organic framework (CaMgAl-MOF) has been designed as precursor material for carbon dioxide (CO2) capture to enhance the CO2 capture capacity and stability during multiple carbonation-calcination cycles. The CaMgAl-MOFs were constructed from self-assembly of metal ions and organic ligands through hydrothermal process to make metal ions uniformly distributed through the whole structure. Upon heat treatment at 600 °C, the Ca-based multi-metals CaMgAl-MOF would gradually transform to CaO and MgO nanoparticles along with the amorphous aluminum oxide distributed in the CaO matrix. XRD, Fourier transform infrared (FTIR), and SEM were used to identify the structure and characterize the morphology. The CO2 capture capacity and multiple carbonation-calcination cyclic tests of calcined Ca-based metal-organic framework (MOF) (attached with O and indicated as Ca-MOF-O) were performed by thermal gravimetric analysis (TGA). The single metal component calcined Ca-MOF sorbent have the highest CO2 capture capacity up to 72 wt.%, but a lower stability of 61% due to severe particle aggregation. In contrast, a higher Ca-rich MOF oxide sorbent with tailoring the Mg/Al ratios, Ca0.97Mg0.025Al0.005-MOF-O, showed the best performance, not only having the high stability of ~97%, but also maintaining the highest capacity of 71 wt.%. The concept of using Ca-based MOF materials combined with mixed-metal ions for CO2 capture showed a potential route for achieving efficient multiple carbonation-calcination CO2 cycles.
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33
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Kurlov A, Kierzkowska AM, Huthwelker T, Abdala PM, Müller CR. Na2CO3-modified CaO-based CO2 sorbents: the effects of structure and morphology on CO2 uptake. Phys Chem Chem Phys 2020; 22:24697-24703. [DOI: 10.1039/d0cp04410e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
TGA, Na K-edge XAS and FIB-SEM allowed us to understand the degradation of the CO2 uptake of Na2CO3-modified CaO CO2 sorbents.
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Affiliation(s)
- Alexey Kurlov
- ETH Zürich
- Laboratory of Energy Science and Engineering
- Leonhardstrasse 21
- CH 8092 Zürich
- Switzerland
| | - Agnieszka M. Kierzkowska
- ETH Zürich
- Laboratory of Energy Science and Engineering
- Leonhardstrasse 21
- CH 8092 Zürich
- Switzerland
| | | | - Paula M. Abdala
- ETH Zürich
- Laboratory of Energy Science and Engineering
- Leonhardstrasse 21
- CH 8092 Zürich
- Switzerland
| | - Christoph R. Müller
- ETH Zürich
- Laboratory of Energy Science and Engineering
- Leonhardstrasse 21
- CH 8092 Zürich
- Switzerland
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34
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Kurlov A, Armutlulu A, Donat F, Studart AR, Müller CR. CaO-Based CO2 Sorbents with a Hierarchical Porous Structure Made via Microfluidic Droplet Templating. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b05996] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Alexey Kurlov
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zürich, 8092 Zürich, Switzerland
| | - Andac Armutlulu
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zürich, 8092 Zürich, Switzerland
| | - Felix Donat
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zürich, 8092 Zürich, Switzerland
| | - André R. Studart
- Complex Materials, Department of Materials, ETH Zürich, 8093 Zürich, Switzerland
| | - Christoph R. Müller
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zürich, 8092 Zürich, Switzerland
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35
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Sang S, Zhao Z, Tian H, Sun Z, Li H, Assabumrungrat S, Muhammad T, Zeng L, Gong J. Promotional role of MgO on sorption‐enhanced steam reforming of ethanol over Ni/CaO catalysts. AIChE J 2019. [DOI: 10.1002/aic.16877] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sier Sang
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and Technology, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University Tianjin China
| | - Zhi‐Jian Zhao
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and Technology, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University Tianjin China
| | - Hao Tian
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and Technology, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University Tianjin China
| | - Zhao Sun
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and Technology, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University Tianjin China
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of EducationSchool of Energy and Environment, Southeast University Nanjing China
| | - Hongfang Li
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and Technology, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University Tianjin China
| | - Suttichai Assabumrungrat
- Center of Excellence in Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of EngineeringChulalongkorn University Bangkok Thailand
| | - Tahir Muhammad
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and Technology, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University Tianjin China
| | - Liang Zeng
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and Technology, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University Tianjin China
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and Technology, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University Tianjin China
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Mohamed M, Yusup S, Quitain AT, Kida T. Utilization of rice husk to enhance calcium oxide-based sorbent prepared from waste cockle shells for cyclic CO 2 capture in high-temperature condition. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:33882-33896. [PMID: 29956260 DOI: 10.1007/s11356-018-2549-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 06/13/2018] [Indexed: 06/08/2023]
Abstract
The CO2 capture capacity and cyclic stability of calcium oxide (CaO) prepared from cockle shells (CS) were enhanced by incorporating rice husk (RH) and binder through wet-mixing method. The cyclic reaction of calcination and carbonation was demonstrated using thermal gravimetric analyzer (TGA) which the calcination was performed in a pure N2 environment at 850 °C for 20 min and carbonation at 650 °C for 30 min in 20 vol% of CO2 in N2. The analysis using x-ray fluorescence (XRF) identified silica (Si) as the major elements in the sorbents. The RH-added sorbents also contained several types of metal elements such as which was a key factor to minimize the sintering of the sorbent during the cyclic reaction and contributed to higher CO2 capture capacity. The presence of various morphologies also associated with the improvement of the synthesized sorbents performance. The highest initial CO2 capture capacity was exhibited by CS+10%RH sorbent, which was 12% higher than the RH-free sorbent (CS). However, sorbents with the higher RH loading amount such as 40 and 50 wt% were preferred to maintain high capture capacity when the sorbents were regenerated and extended to the cyclic reaction. The sorbents also demonstrated the lowest average sorption decay, which suggested the most stable sorbent for cyclic-reaction. Once regenerated, the capture capacity of the RH-added sorbent was further increased by 12% when clay was added into the sorbent. Overall, the metal elements in RH and clay were possibly the key factor that enhances the performance of CaO prepared from CS, particularly for cyclic CO2 capture. Graphical abstract Cyclic calcination and carbonation reaction.
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Affiliation(s)
- Mustakimah Mohamed
- Biomass Processing Laboratory, Centre of Biofuel and Biochemical Research, Institute of Sustainable Living, Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak, Malaysia
| | - Suzana Yusup
- Biomass Processing Laboratory, Centre of Biofuel and Biochemical Research, Institute of Sustainable Living, Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak, Malaysia.
| | - Armando T Quitain
- International Research Organization for Advance Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, 860-855, Japan
| | - Tetsuya Kida
- Department of Applied Chemistry and Biochemistry, Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, 860-855, Japan
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37
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Comparative Kinetic Analysis of CaCO3/CaO Reaction System for Energy Storage and Carbon Capture. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9214601] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The calcium carbonate looping cycle is an important reaction system for processes such as thermochemical energy storage and carbon capture technologies, which can be used to lower greenhouse gas emissions associated with the energy industry. Kinetic analysis of the reactions involved (calcination and carbonation) can be used to determine kinetic parameters (activation energy, pre-exponential factor, and the reaction model), which is useful to translate laboratory-scale studies to large-scale reactor conditions. A variety of methods are available and there is a lack of consensus on the kinetic parameters in published literature. In this paper, the calcination of synthesized CaCO3 is modeled using model-fitting methods under two different experimental atmospheres, including 100% CO2, which realistically reflects reactor conditions and is relatively unstudied kinetically. Results are compared with similar studies and model-free methods using a detailed, comparative methodology that has not been carried out previously. Under N2, an activation energy of 204 kJ mol-1 is obtained with the R2 (contracting area) geometric model, which is consistent with various model-fitting and isoconversional analyses. For experiments under CO2, much higher activation energies (up to 1220 kJ mol-1 with a first-order reaction model) are obtained, which has also been observed previously. The carbonation of synthesized CaO is modeled using an intrinsic chemical reaction rate model and an apparent model. Activation energies of 17.45 kJ mol-1 and 59.95 kJ mol-1 are obtained for the kinetic and diffusion control regions, respectively, which are on the lower bounds of literature results. The experimental conditions, material properties, and the kinetic method are found to strongly influence the kinetic parameters, and recommendations are provided for the analysis of both reactions.
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Yañez-Aulestia A, Ovalle-Encinia O, Pfeiffer H. Evaluation of Fe-containing Li 2CuO 2 on CO 2 capture performed at different physicochemical conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:29532-29543. [PMID: 29872979 DOI: 10.1007/s11356-018-2444-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 05/29/2018] [Indexed: 06/08/2023]
Abstract
Li2CuO2 and different iron-containing Li2CuO2 samples were synthesized by solid state reaction. On iron-containing samples, atomic sites of copper are substituted by iron ions in the lattice (XRD and Rietveld analyses). Iron addition induces copper release from Li2CuO2, which produce cationic vacancies and CuO, due to copper (Cu2+) and iron (Fe3+) valence differences. Two different physicochemical conditions were used for analyzing CO2 capture on these samples; (i) high temperature and (ii) low temperature in presence of water vapor. At high temperatures, iron addition increased CO2 chemisorption, due to structural and chemical variations on Li2CuO2. Kinetic analysis performed by first order reaction and Eyring models evidenced that iron addition on Li2CuO2 induced a faster CO2 chemisorption but a higher thermal dependence. Conversely, CO2 chemisorption at low temperature in water vapor presence practically did not vary by iron addition, although hydration and hydroxylation processes were enhanced. Moreover, under these physicochemical conditions the whole sorption process became slower on iron-containing samples, due to metal oxides presence.
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Affiliation(s)
- Ana Yañez-Aulestia
- Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito exterior s/n, Cd. Universitaria, Del. Coyoacán C.P, 04510, Ciudad de México, Mexico
| | - Oscar Ovalle-Encinia
- Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito exterior s/n, Cd. Universitaria, Del. Coyoacán C.P, 04510, Ciudad de México, Mexico
| | - Heriberto Pfeiffer
- Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito exterior s/n, Cd. Universitaria, Del. Coyoacán C.P, 04510, Ciudad de México, Mexico.
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40
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Pi S, Zhang Z, He D, Qin C, Ran J. Investigation of Y
2
O
3
/MgO‐modified extrusion–spheronized CaO‐based pellets for high‐temperature CO
2
capture. ASIA-PAC J CHEM ENG 2019. [DOI: 10.1002/apj.2366] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Shuai Pi
- Key Laboratory of Low‐grade Energy Utilization Technologies and Systems of Ministry of Education, School of Energy and Power EngineeringChongqing University Chongqing China
| | - Zonghao Zhang
- Key Laboratory of Low‐grade Energy Utilization Technologies and Systems of Ministry of Education, School of Energy and Power EngineeringChongqing University Chongqing China
| | - Donglin He
- Key Laboratory of Low‐grade Energy Utilization Technologies and Systems of Ministry of Education, School of Energy and Power EngineeringChongqing University Chongqing China
| | - Changlei Qin
- Key Laboratory of Low‐grade Energy Utilization Technologies and Systems of Ministry of Education, School of Energy and Power EngineeringChongqing University Chongqing China
| | - Jingyu Ran
- Key Laboratory of Low‐grade Energy Utilization Technologies and Systems of Ministry of Education, School of Energy and Power EngineeringChongqing University Chongqing China
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41
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Mohamed M, Yusup S, Loy ACM. Effect of Empty Fruit Bunch in Calcium Oxide for Cyclic CO
2
Capture. Chem Eng Technol 2019. [DOI: 10.1002/ceat.201800649] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mustakimah Mohamed
- Universiti Teknologi PETRONASHICOE – Center for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Chemical Engineering Lebuhraya Ipoh-Lumut 32610 Seri Iskandar, Perak Malaysia
| | - Suzana Yusup
- Universiti Teknologi PETRONASHICOE – Center for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Chemical Engineering Lebuhraya Ipoh-Lumut 32610 Seri Iskandar, Perak Malaysia
| | - Adrian Chun Minh Loy
- Universiti Teknologi PETRONASHICOE – Center for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Chemical Engineering Lebuhraya Ipoh-Lumut 32610 Seri Iskandar, Perak Malaysia
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42
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Sun H, Wu C. Autothermal CaO Looping Biomass Gasification for Renewable Syngas Production. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:9298-9305. [PMID: 31241318 DOI: 10.1021/acs.est.9b01527] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Biomass gasification is regarded as a promising alternative to fossil fuels for producing sustainable and clean value-added products. However, the challenges including low energy efficiency, CO2 emission, and ash agglomeration significantly delay the deployment of the technology. Herein, we first proposed a novel autothermal CaO looping biomass gasification (Auto-CaL-Gas) technology, in which CaO-based materials react with flue gas with a high concentration of CO2 (>30 vol %) to produce heat inside the gasifier, simultaneously providing energy for low-temperature biomass gasification using CO2 as a gasification agent. Upon use of this concept the syngas production exhibited a significant increase from 0.21 kg/h to 0.90 kg/h in the Aspen simulation results and more than 3-fold improvement in the experimental results.
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Affiliation(s)
- Hongman Sun
- School of Chemistry and Chemical Engineering , Queen's University Belfast , Belfast , BT7 1NN , U.K
- School of Engineering and Computer Science , University of Hull , Hull , HU6 7RX , U.K
| | - Chunfei Wu
- School of Chemistry and Chemical Engineering , Queen's University Belfast , Belfast , BT7 1NN , U.K
- School of Engineering and Computer Science , University of Hull , Hull , HU6 7RX , U.K
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43
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Kinetics of Solid-Gas Reactions and Their Application to Carbonate Looping Systems. ENERGIES 2019. [DOI: 10.3390/en12152981] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Reaction kinetics is an important field of study in chemical engineering to translate laboratory-scale studies to large-scale reactor conditions. The procedures used to determine kinetic parameters (activation energy, pre-exponential factor and the reaction model) include model-fitting, model-free and generalized methods, which have been extensively used in published literature to model solid-gas reactions. A comprehensive review of kinetic analysis methods will be presented using the example of carbonate looping, an important process applied to thermochemical energy storage and carbon capture technologies. The kinetic parameters obtained by different methods for both the calcination and carbonation reactions are compared. The experimental conditions, material properties and the kinetic method are found to strongly influence the kinetic parameters and recommendations are provided for the analysis of both reactions. Of the methods, isoconversional techniques are encouraged to arrive at non-mechanistic parameters for calcination, while for carbonation, material characterization is recommended before choosing a specific kinetic analysis method.
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44
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Buelens LC, Poelman H, Marin GB, Galvita VV. 110th Anniversary: Carbon Dioxide and Chemical Looping: Current Research Trends. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02521] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Lukas C. Buelens
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Hilde Poelman
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Guy B. Marin
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
| | - Vladimir V. Galvita
- Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Ghent, Belgium
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45
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Friedman method kinetic analysis of CaO-based sorbent for high-temperature thermochemical energy storage. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.02.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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46
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Prathap A, Sureshan KM. Sugar-Based Organogelators for Various Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6005-6014. [PMID: 30983352 DOI: 10.1021/acs.langmuir.9b00506] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this Feature Article, we discuss the design strategy, syntheses, and the self-assembly of various sugar-based gelators to form organogels. We illustrate the use of organogels formed by these sugar-based gelators for various applications such as (a) development of scratch-free, shatter-free, soft-optical devices using oil gels formed by mannitol-based gelators, (b) marine oil-spill recovery using sugar-based phase selective organogelators, (c) preparation of semiconducting cotton cloths using a diyne functionalized sugar gelator, (d) development of sugar arrays on glass slides using a polymerizable diyne functionalized sugar gelator for efficient lectin binding, (e) development of sintering resistant hybrid CaO-silica material for the absorption of CO2, (f) preparation of porous polystyrene-crown ether matrix for the selective alkali metal ions sequestration, and (g) preparation of porous polystyrene, structured silica, and fluorescent gels using a library of sugar-based gelators, and also the mechanism of gelation of some of these gelators have been discussed. We have also given our perspective toward exploring sugar-based gelators for advanced applications.
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Affiliation(s)
- Annamalai Prathap
- School of Chemistry , Indian Institute of Science Education and Research Thiruvananthapuram , Maruthamala (P.O.), Vithura , Kerala 695551 , India
| | - Kana M Sureshan
- School of Chemistry , Indian Institute of Science Education and Research Thiruvananthapuram , Maruthamala (P.O.), Vithura , Kerala 695551 , India
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47
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Evolution of sorptive and textural properties of CaO-based sorbents during repetitive sorption/regeneration cycles: Part II. Modeling of sorbent sintering during initial cycles. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2018.12.065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Tian S, Yan F, Zhang Z, Jiang J. Calcium-looping reforming of methane realizes in situ CO 2 utilization with improved energy efficiency. SCIENCE ADVANCES 2019; 5:eaav5077. [PMID: 30993203 PMCID: PMC6461455 DOI: 10.1126/sciadv.aav5077] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Accepted: 02/19/2019] [Indexed: 05/14/2023]
Abstract
Closing the anthropogenic carbon cycle is one important strategy to combat climate change, and requires the chemistry to effectively combine CO2 capture with its conversion. Here, we propose a novel in situ CO2 utilization concept, calcium-looping reforming of methane, to realize the capture and conversion of CO2 in one integrated chemical process. This process couples the calcium-looping CO2 capture and the CH4 dry reforming reactions in the CaO-Ni bifunctional sorbent-catalyst, where the CO2 captured by CaO is reduced in situ by CH4 to CO, a reaction catalyzed by catalyzed by the adjacent metallic Ni. The process coupling scheme exhibits excellent decarbonation kinetics by exploiting Le Chatelier's principle to shift reaction equilibrium through continuous conversion of CO2, and results in an energy consumption 22% lower than that of conventional CH4 dry reforming for CO2 utilization. The proposed CO2 utilization concept offers a promising option to recycle carbon directly at large CO2 stationary sources in an energy-efficient manner.
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Affiliation(s)
- Sicong Tian
- School of Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
- Corresponding author.
| | - Feng Yan
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, P. R. China
- School of Environment, Tsinghua University, Beijing 100084, P. R. China
| | - Zuotai Zhang
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Jianguo Jiang
- School of Environment, Tsinghua University, Beijing 100084, P. R. China
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49
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Dal Pozzo A, Moricone R, Tugnoli A, Cozzani V. Experimental Investigation of the Reactivity of Sodium Bicarbonate toward Hydrogen Chloride and Sulfur Dioxide at Low Temperatures. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00610] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alessandro Dal Pozzo
- LISES-Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Alma Mater Studiorum, Università di Bologna, via Terracini n.28, 40131 Bologna, Italy
| | - Raffaela Moricone
- LISES-Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Alma Mater Studiorum, Università di Bologna, via Terracini n.28, 40131 Bologna, Italy
| | - Alessandro Tugnoli
- LISES-Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Alma Mater Studiorum, Università di Bologna, via Terracini n.28, 40131 Bologna, Italy
| | - Valerio Cozzani
- LISES-Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Alma Mater Studiorum, Università di Bologna, via Terracini n.28, 40131 Bologna, Italy
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50
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Narayanappa A, Kamath PV. Interaction of Pristine Hydrocalumite-Like Layered Double Hydroxides with Carbon Dioxide. ACS OMEGA 2019; 4:3198-3204. [PMID: 31459537 PMCID: PMC6648629 DOI: 10.1021/acsomega.9b00083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 02/01/2019] [Indexed: 06/10/2023]
Abstract
The layered double hydroxides (LDHs) of Ca2+ and trivalent cations, Al3+ and Fe3+, are single-source precursors to generate supported CaO, which picks up CO2 from the gas phase in the temperature range 350-550 °C. The supports are ternary oxides, mayenite, and Ca2Fe2O5. The uptake capacity of the Fe3+-containing LDH at 1.9 mmol g-1 is two times the capacity of the Al3+-containing LDH. The product of CO2 uptake is calcite CaCO3. It is observed that the intercalated chloride ions reduce the thermal penalty by inducing the early decomposition of CaCO3. In the case of the chloride-intercalated LDHs of Ca2+ and Fe3+, the CaCO3 formed is completely decomposed at 900 °C. This is in contrast with the CaCO3 formed from bare CaO, which shows no sign of decomposition at 900 °C under similar conditions. This work shows that the hydrocalumite-like LDHs are candidate materials for CO2 mineralization.
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