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Wang S, Miao J, Liu M, Zhang L, Liu Z. Hierarchical porous N-doped carbon xerogels for high performance CO2 capture and supercapacitor. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126285] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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3
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Texture and surface sites of treated and as-prepared SWNT using experimental and simulation methods. ADSORPTION 2021. [DOI: 10.1007/s10450-021-00317-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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4
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Wu W, Su J, Jia M, Li Z, Liu G, Li W. Vapor-phase linker exchange of metal-organic frameworks. SCIENCE ADVANCES 2020; 6:eaax7270. [PMID: 32494660 PMCID: PMC7195121 DOI: 10.1126/sciadv.aax7270] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 02/06/2020] [Indexed: 05/20/2023]
Abstract
Metal-organic frameworks (MOFs) have been attracting intensive attention because of their commendable potential in many applications. Postsynthetic modification for redesigning chemical characteristics and pore structures can greatly improve performance and expand functionality of MOF materials. Here, we develop a versatile vapor-phase linker exchange (VPLE) methodology for MOF modification. Through solvent-free and environment-friendly VPLE processing, various linker analogs with functional groups but not for straightforward MOF crystallization are inserted into frameworks as daughter building blocks. Besides single exchange for preparing MOFs with dual linkers, VPLE can further be performed by multistage operations to obtain MOF materials with multiple linkers and functional groups. The halogen-incorporated ZIFs exhibit good porosity, tunable molecular affinity, and impressive CO2/N2 and CH4/N2 adsorption selectivities up to 31.1 and 10.8, respectively, which are two to six times higher than those of conventional adsorbents. Moreover, VPLE can substantially enhance the compatibility of MOFs and polymers.
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Peng X, Jin Q. Ideal adsorbed solution theory, two-dimensional equation of state, and molecular simulation for separation of H2/N2/O2/CH4/CO in graphite nanofiber and C60 intercalated graphite. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116369] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Feng L, Shen Y, Wu T, Liu B, Zhang D, Tang Z. Adsorption equilibrium isotherms and thermodynamic analysis of CH4, CO2, CO, N2 and H2 on NaY Zeolite. ADSORPTION 2020. [DOI: 10.1007/s10450-020-00205-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Vorokhta M, Morávková J, Řimnáčová D, Pilař R, Zhigunov A, Švábová M, Sazama P. CO2 capture using three-dimensionally ordered micromesoporous carbon. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2019.03.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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8
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Pure and mixture adsorption equilibria of methane and nitrogen onto clinoptilolite: effects of Cs+ and Fe3+ exchanged cations on separation performance. ADSORPTION 2019. [DOI: 10.1007/s10450-018-0001-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Li Y, Xu R, Wang B, Wei J, Wang L, Shen M, Yang J. Enhanced N-doped Porous Carbon Derived from KOH-Activated Waste Wool: A Promising Material for Selective Adsorption of CO₂/CH₄ and CH₄/N₂. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E266. [PMID: 30781371 PMCID: PMC6409997 DOI: 10.3390/nano9020266] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/09/2019] [Accepted: 02/12/2019] [Indexed: 11/16/2022]
Abstract
Separation of impurities (CO₂ and N₂) from CH₄ is an important issue for natural gas alternatives (such as coalbed gas, biogas, and landfill gas) upgrading. It is notably challenging to synthesize high N-doped porous carbon with an appropriate porous structure. In this work, high N content (14.48 wt %) porous carbon with micropore size of 0.52 and 1.2 nm and specific surface area of 862 m² g-1 has been synthesized from potassium hydroxide (KOH) activated waste wool upon the urea modification. Pure component adsorption isotherms of CO₂, CH₄, and N₂ are systematically measured on this enhanced N-doped porous carbon at 0 and 25 °C, up to 1 bar, to evaluate the gases adsorption capability, and correlated with the Langmuir model. These data are used to estimate the separation selectivities for binary mixtures of CO₂/CH₄ and CH₄/N₂ at different mixing ratios according to the ideal adsorbed solution theory (IAST) model. At an ambient condition of 25 °C and 1 bar, the predicted selectivities for equimolar CO₂/CH₄ and CH₄/N₂ are 3.19 and 7.62, respectively, and the adsorption capacities for CO₂, CH₄, and N₂ are 2.91, 1.01, and 0.13 mmol g-1, respectively. This report introduces a simple pathway to obtain enhanced N-doped porous carbon with large adsorption capacities for gas separation of CO₂/CH₄ and CH₄/N₂.
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Affiliation(s)
- Yao Li
- School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China.
- State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University, Jiaozuo 454000, China.
| | - Ran Xu
- School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China.
| | - Binbin Wang
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China.
| | - Jianping Wei
- School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China.
- State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University, Jiaozuo 454000, China.
| | - Lanyun Wang
- School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China.
| | - Mengqi Shen
- School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China.
| | - Juan Yang
- School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China.
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Liu A, Peng X, Jin Q, Jain SK, Vicent-Luna JM, Calero S, Zhao D. Adsorption and Diffusion of Benzene in Mg-MOF-74 with Open Metal Sites. ACS APPLIED MATERIALS & INTERFACES 2019; 11:4686-4700. [PMID: 30618234 DOI: 10.1021/acsami.8b20447] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We performed molecular simulations to investigate the adsorption and diffusion of benzene in metal-organic framework Mg-MOF-74. At 300 K and 20 Pa, the saturated loading of benzene reaches 8.2 mmol/g, almost twice of (12,12) single-walled carbon nanotube with a similar pore size, and 93% of the benzene molecules in Mg-MOF-74 can desorb at 390 K. The energy analysis indicates that the van der Waals contribution still dominates 70-80% of the total fluid-wall interaction energy compared with the Coulombic contribution. We further analyzed the structure of benzene confined in Mg-MOF-74 by the molecular snapshots, pair correlation functions, orientational order parameters, and local density profiles. It is found that low temperature and high pressure make the structure of adsorbed benzene more similar to that of the liquid benzene. Moreover, the benzene molecules in the contact adsorption layer lie flat on the surface of adsorbent, whereas those molecules near the pore center have no particular orientations. Due to the existence of open metal sites, the structures of adsorbed benzene are more compact and ordered than those of bulk liquid benzene. Consequently, the self-diffusion coefficient of saturated benzene in Mg-MOF-74 at 300 K is significantly lower than that of bulk liquid benzene and confined liquid benzene in slit pores and disordered carbons by 4-5 orders of magnitude. We investigated the separation and diffusion of benzene/cyclohexane in the mixture in Mg-MOF-74 and found that the pores almost completely adsorbed benzene, although its self-diffusion coefficient was slightly lower than that of cyclohexane.
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Affiliation(s)
- Anqi Liu
- College of Chemical Engineering , University of Petroleum (East China) , Qingdao 266580 , China
- CNPC Research Institute of Safety and Environment Technology , Beijing 102206 , P. R. China
| | - Xuan Peng
- College of Information Science and Technology , Beijing University of Chemical Technology , Beijing 100029 , P. R. China
| | - Qibing Jin
- College of Information Science and Technology , Beijing University of Chemical Technology , Beijing 100029 , P. R. China
| | - Surendra Kumar Jain
- Department of Chemical Engineering , Indian Institute of Technology Kanpur , Kanpur 208016 , India
| | - Jose Manuel Vicent-Luna
- Department of Physical, Chemical and Natural Systems , Universidad Pablo de Olavide , Ctra. Utrera Km 1 , Seville ES-41013 , Spain
| | - Sofía Calero
- Department of Physical, Chemical and Natural Systems , Universidad Pablo de Olavide , Ctra. Utrera Km 1 , Seville ES-41013 , Spain
| | - Dongfeng Zhao
- College of Chemical Engineering , University of Petroleum (East China) , Qingdao 266580 , China
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Peng X, Jain SK, Singh JK, Liu A, Jin Q. Formation patterns of water clusters in CMK-3 and CMK-5 mesoporous carbons: a computational recognition study. Phys Chem Chem Phys 2018; 20:17093-17104. [PMID: 29896587 DOI: 10.1039/c8cp01887a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Grand canonical Monte Carlo simulations are performed to study the adsorption of water in realistic CMK-3 and CMK-5 models at 300 K. The adsorption isotherms are characterized by negligible uptake at lower chemical potentials and complete pore filling once the threshold chemical potential is increased. Results for the isosteric heat of adsorption, radial distribution function (O-O and O-H), hydrogen bond statistics and the cluster size distribution of water molecules are presented. The snapshots of GCMC simulations in CMK-3 and CMK-5 models show that the adsorption happens via the formation of water clusters. For the CMK-3 model, it was found that the pore filling occurred via the formation of a single water cluster and a few very small clusters. The water cluster size increased with an increase in pore size of the CMK-3 model. For the CMK-5 model, it was found that the adsorption first occurred in the inner porosity (via cluster formation). There was no adsorption of water in the outer porosity during the filling of the inner porosity. After the inner porosity was completely filled, the water begins to fill the outer porosity. Snapshots from GCMC simulations of the CMK-5 model clearly show that the water adsorption in the outer porosity occurs via the formation and growth of clusters and there was no formation of layers of water in the porosity as seen for nonpolar fluids like nitrogen.
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Affiliation(s)
- Xuan Peng
- College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
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Ariunaa A, Liou SYH, Tsatsral G, Purevsuren B, Davaajav Y, Chang RW, Lin CJ. Selective adsorption of greenhouse gases on the residual carbon in lignite coal liquefaction. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.01.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Barrera D, de Mendonça FG, de Castro AH, de Mesquita JP, Lago RM, Sapag K. Surface modified mesoporous nanocast carbon as a catalyst for aqueous sulfide oxidation and adsorption of the produced polysulfides. NEW J CHEM 2018. [DOI: 10.1039/c8nj00922h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Surface modified mesoporous nanocast carbon can promote aqueous sulfide oxidation adsorbing the produced polysulfides.
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Affiliation(s)
- Deicy Barrera
- Laboratorio de Sólidos Porosos
- Instituto de Física Aplicada
- CONICET
- Universidad Nacional de San Luis
- San Luis
| | | | | | - João Paulo de Mesquita
- Departamento de Química
- Universidade Federal dos Vales do Jequitinhonha e Mucuri
- Diamantina
- Brazil
| | - Rochel Montero Lago
- Departamento de Química
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
| | - Karim Sapag
- Laboratorio de Sólidos Porosos
- Instituto de Física Aplicada
- CONICET
- Universidad Nacional de San Luis
- San Luis
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Peng X, Jain SK. Atomic simulation of Xe and Kr separation in silica-templated amorphous mesoporous carbons CMK-3 and CMK-5. MOLECULAR SIMULATION 2017. [DOI: 10.1080/08927022.2017.1334879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Xuan Peng
- College of Information Science and Technology, Beijing University of Chemical Technology, Beijing, P.R. China
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Saha D, Orkoulas G, Yohannan S, Ho HC, Cakmak E, Chen J, Ozcan S. Nanoporous Boron Nitride as Exceptionally Thermally Stable Adsorbent: Role in Efficient Separation of Light Hydrocarbons. ACS APPLIED MATERIALS & INTERFACES 2017; 9:14506-14517. [PMID: 28368569 DOI: 10.1021/acsami.7b01889] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this work, nanoporous boron nitride sample was synthesized with a Brunauer-Emmett-Teller (BET) surface area of 1360 m2/g and particle size 5-7 μm. The boron nitride was characterized with X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and electron microscopy (TEM and SEM). Thermogravimetric analysis (TGA) under nitrogen and air and subsequent analysis with XPS and XRD suggested that its structure is stable in air up to 800 °C and in nitrogen up to 1050 °C, which is higher than most of the common adsorbents reported so far. Nitrogen and hydrocarbon adsorption at 298 K and pressure up to 1 bar suggested that all hydrocarbon adsorption amounts were higher than that of nitrogen and the adsorbed amount of hydrocarbon increases with an increase in its molecular weight. The kinetics of adsorption data suggested that adsorption becomes slower with the increase in molecular weight of hydrocarbons. The equilibrium data suggested that that boron nitride is selective to paraffins in a paraffin-olefin mixture and hence may act as an "olefin generator". The ideal adsorbed solution theory (IAST)-based selectivity for CH4/N2, C2H6/CH4, and C3H8/C3H6 was very high and probably higher than the majority of adsorbents reported in the literature. IAST-based calculations were also employed to simulate the binary mixture adsorption data for the gas pairs of CH4/N2, C2H6/CH4, C2H6/C2H4, and C3H8/C3H6. Finally, a simple mathematical model was employed to simulate the breakthrough behavior of the above-mentioned four gas pairs in a dynamic column experiment. The overall results suggest that nanoporous boron nitride can be used as a potential adsorbent for light hydrocarbon separation.
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Affiliation(s)
- Dipendu Saha
- Department of Chemical Engineering, Widener University , One University Place, Chester, Pennsylvania 19013, United States
| | - Gerassimos Orkoulas
- Department of Chemical Engineering, Widener University , One University Place, Chester, Pennsylvania 19013, United States
| | - Samuel Yohannan
- Department of Chemical Engineering, Widener University , One University Place, Chester, Pennsylvania 19013, United States
| | - Hoi Chun Ho
- Materials Science and Technology Division, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States
- The Bredesen Center for Interdisciplinary Research and Graduate Education, The University of Tennessee , Knoxville, Tennessee 37996, United States
| | - Ercan Cakmak
- Materials Science and Technology Division, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States
| | - Jihua Chen
- Center for Nanophase Materials Sciences, United States, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States
| | - Soydan Ozcan
- Materials Science and Technology Division, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee at Knoxville , Knoxville, Tennessee 37996, United States
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16
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Akbarzadeh H, Abbaspour M. A comprehensive study of methane/carbon dioxide adsorptive selectivity in different bundle nanotubes. RSC Adv 2016. [DOI: 10.1039/c6ra16672e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
We have investigated methane/carbon dioxide adsorptive selectivity in carbon nanotube (CNT) and silicon carbide nanotube (SiCNT) bundlesviaMD simulations.
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Halder P, Maurya M, Jain SK, Singh JK. Understanding adsorption of CO2, N2, CH4 and their mixtures in functionalized carbon nanopipe arrays. Phys Chem Chem Phys 2016; 18:14007-16. [DOI: 10.1039/c5cp07422c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Effects of functionalization on excess adsorption of CO2 (a) and selectivity of equimolar mixtures in 5% COOH functionalized CMK-5 (b).
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Affiliation(s)
- Prosun Halder
- Department of Chemical Engineering
- Indian Institute of Technology Kanpur
- Kanpur-208016
- India
| | - Manish Maurya
- Department of Chemical Engineering
- Indian Institute of Technology Kanpur
- Kanpur-208016
- India
| | - Surendra K. Jain
- Department of Chemical Engineering
- Indian Institute of Technology Kanpur
- Kanpur-208016
- India
| | - Jayant K. Singh
- Department of Chemical Engineering
- Indian Institute of Technology Kanpur
- Kanpur-208016
- India
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Rahimi M, Singh JK, Müller-Plathe F. Adsorption and separation of binary and ternary mixtures of SO2, CO2 and N2 by ordered carbon nanotube arrays: grand-canonical Monte Carlo simulations. Phys Chem Chem Phys 2016; 18:4112-20. [DOI: 10.1039/c5cp06377a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The selectivity value is found here to range from 4 to 16, indicating that the optimization of pore size tuning can increase it by 4 times.
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Affiliation(s)
- Mahshid Rahimi
- Technische Universität Darmstadt
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie
- D-64287 Darmstadt
- Germany
| | - Jayant K. Singh
- Technische Universität Darmstadt
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie
- D-64287 Darmstadt
- Germany
- Department of Chemical Engineering
| | - Florian Müller-Plathe
- Technische Universität Darmstadt
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie
- D-64287 Darmstadt
- Germany
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Rahimi M, Babu DJ, Singh JK, Yang YB, Schneider JJ, Müller-Plathe F. Double-walled carbon nanotube array for CO2 and SO2 adsorption. J Chem Phys 2015; 143:124701. [PMID: 26429026 DOI: 10.1063/1.4929609] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Grand-canonical Monte Carlo simulations and adsorption experiments are combined to find the optimized carbon nanotube (CNT) arrays for gas adsorption at low pressures and 303 K. Bundles of 3D aligned double-walled carbon nanotube (DWCNT) with inner diameter of 8 nm and different intertube distances were made experimentally. The experimental results show that decreasing intertube distance leads to a significant enhancement in carbon-dioxide (CO2) adsorption capacity at 1 bar. The molecular simulation study on CO2 adsorption onto bundles of 3D aligned DWCNT with inner diameters of 1, 3, and 8 nm and intertube distance of 0-15 nm shows that the intertube distance plays a more important role than the CNT diameter. The simulation results show that decreasing the intertube distance up to 1 nm increases the excess adsorption generally in all the studied systems at pressures 0 < p < 14 bars (the increase can be up to ∼40% depending on the system and pressure). This is in agreement with the experimental result. Further reduction in intertube distance leads to a decrease in the excess adsorption in the pressure range 9 < p < 14 bars. However, at lower pressure, 0 < p < 9 bars, intertube distance of 0.5 nm is found to have the highest excess adsorption. This result is indifferent to tube diameter. Furthermore, molecular simulations are conducted to obtain the optimal parameters, for the DWCNT bundle, for SO2 adsorption, which are similar to those observed for CO2 in the pressure range 0 < p < 3 bars.
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Affiliation(s)
- Mahshid Rahimi
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Str. 4, D-64287 Darmstadt, Germany
| | - Deepu J Babu
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Str. 4, D-64287 Darmstadt, Germany
| | - Jayant K Singh
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Str. 4, D-64287 Darmstadt, Germany
| | - Yong-Biao Yang
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Str. 4, D-64287 Darmstadt, Germany
| | - Jörg J Schneider
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Str. 4, D-64287 Darmstadt, Germany
| | - Florian Müller-Plathe
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Str. 4, D-64287 Darmstadt, Germany
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Sizova AA, Sizov VV, Brodskaya EN. Adsorption of CO2/CH4 and CO2/N2 mixtures in SBA-15 and CMK-5 in the presence of water: A computer simulation study. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.03.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Trinh TT, Vlugt TJH, Kjelstrup S. Thermal conductivity of carbon dioxide from non-equilibrium molecular dynamics: A systematic study of several common force fields. J Chem Phys 2014; 141:134504. [DOI: 10.1063/1.4896965] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Thuat T. Trinh
- Department of Chemistry, Norwegian University of Science and Technology, Trondheim, Norway
| | - Thijs J. H. Vlugt
- Department of Process and Energy, Delft University of Technology, Delft, Netherlands
| | - Signe Kjelstrup
- Department of Chemistry, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Process and Energy, Delft University of Technology, Delft, Netherlands
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Yuan B, Wu X, Chen Y, Huang J, Luo H, Deng S. Adsorption of CO₂, CH₄, and N₂ on ordered mesoporous carbon: approach for greenhouse gases capture and biogas upgrading. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:5474-5480. [PMID: 23688273 DOI: 10.1021/es4000643] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Separation of CO₂ and N₂ from CH₄ is significantly important in natural gas upgrading, and capture/removal of CO₂, CH₄ from air (N₂) is essential to greenhouse gas emission control. Adsorption equilibrium and kinetics of CO₂, CH₄, and N₂ on an ordered mesoporous carbon (OMC) sample were systematically investigated to evaluate its capability in the above two applications. The OMC was synthesized and characterized with TEM, TGA, small-angle XRD, and nitrogen adsorption/desorption measurements. Pure component adsorption isotherms of CO₂, CH₄, and N₂ were measured at 278, 298, and 318 K and pressures up to 100 kPa, and correlated with the Langmuir model. These data were used to estimate the separation selectivities for CO₂/CH₄, CH₄/N₂, and CO₂/N₂ binary mixtures at different compositions and pressures according to the ideal adsorbed solution theory (IAST) model. At 278 K and 100 kPa, the predicted selectivities for equimolar CO₂/CH₄, CH4/N₂, and CO₂/N₂ are 3.4, 3.7, and 12.8, respectively; and the adsorption capacities for CH₄ and CO₂ are 1.3 and 3.0 mmol/g, respectively. This is the first report of a versatile mesoporous material that displays both high selectivities and large adsorption capacities for separating CO₂/CH₄, CH₄/N₂, and CO₂/N₂ mixtures.
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Affiliation(s)
- Bin Yuan
- Chemical Engineering Department, New Mexico State University, Las Cruces, New Mexico 88003, United States
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Adsorptive separation studies of ethane–methane and methane–nitrogen systems using mesoporous carbon. J Colloid Interface Sci 2013; 394:445-50. [DOI: 10.1016/j.jcis.2012.12.025] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2012] [Revised: 12/07/2012] [Accepted: 12/08/2012] [Indexed: 11/21/2022]
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Peng X, Cao D. Computational screening of porous carbons, zeolites, and metal organic frameworks for desulfurization and decarburization of biogas, natural gas, and flue gas. AIChE J 2013. [DOI: 10.1002/aic.14046] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Xuan Peng
- Dept. of Automation, College of Information Science and Technology; Beijing University of Chemical Technology; Beijing 100029 China
- State Key Laboratory of Clean Energy Utilization; Zhejiang University; Hangzhou 310027 China
| | - Dapeng Cao
- Dept. of Chemical Engineering, Div. of Molecular and Materials Simulation, State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 P.R. China
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Adsorption of nitrogen, hydrogen, methane, and carbon oxides on micro- and mesoporous molecular sieves of different nature. THEOR EXP CHEM+ 2013. [DOI: 10.1007/s11237-013-9287-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Vasanth Kumar K, Rodríguez-Reinoso F. Effect of pore structure on the selectivity of carbon materials for the separation of CO2/H2 mixtures: new insights from molecular simulation. RSC Adv 2012. [DOI: 10.1039/c2ra20775c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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