1
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Liang Y, Luo H, Zhou D, Zhou X, Xia Q, Li Z. Precise Control of Ultramicropores of Novel Carbons Molecule Sieves Derived from Coffee Bean for Efficient Sieving Propylene from Propane. ACS APPLIED MATERIALS & INTERFACES 2024; 16:29069-29076. [PMID: 38795038 DOI: 10.1021/acsami.4c05308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2024]
Abstract
The development of granular carbon materials with outstanding selectivity for the separation of alkenes and alkanes is highly desirable in the petrochemical industry but remains a significant challenge due to closely similar molecular sizes and physical properties of adsorbates. Herein, we report a facile approach of using natural biomass to prepare novel granular carbon molecule sieves with a molecular recognition accuracy of 0.44 Å and propose a new three-region model for the pore size distribution of amorphous porous carbons. Coffee bean-based granule carbon molecular sieves (CFGCs) were prepared with precise micropore regulation with subangstrom accuracy and characterized using molecular probes to reveal the evolution of carbon structure during preparation. The CFGC-0.09-750 demonstrates exceptional selectivity adsorption toward C3H6 while excluding C3H8, with an uptake ratio of 106.75 and a C3H6 uptake of 1.88 mmol/g at 298 K and 100 kPa, showcasing its immense potential in industrial applications for separating C3H6 and C3H8. The novel three-region model established in this work can clearly and reasonably elucidate why the samples CFGCs can screen propylene from propane at the subangstrom level. This study provides important guidance for the development of new carbon molecular sieves with subangstrom accuracy in molecular recognition and separation capacity.
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Affiliation(s)
- Yiran Liang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Haoyuan Luo
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Daohao Zhou
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Xin Zhou
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Qibin Xia
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Zhong Li
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
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2
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Tu S, Yao J, Zhao S, Lin D, Yu L, Zhou X, Wang H, Wu Y, Xia Q. Recognition of C 4 Olefins by an Ultramicroporous ftw-Type Yttrium-Based Metal-Organic Framework with Distorted Cages. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307990. [PMID: 37988702 DOI: 10.1002/smll.202307990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/01/2023] [Indexed: 11/23/2023]
Abstract
Developing porous adsorbents for efficient separation of C4 olefins is significant but challenging in the petrochemical industry due to their similar molecular sizes and physical properties. The separation efficiency is often limited when separating C4 olefins by a single separation mechanism. Herein, an ultramicroporous yttrium-based MOF, Y-dbai, is reported featuring cage-like pores connected by small windows, for recognition and efficient separation of C4 olefins through a synergistic effect of thermodynamic and kinetic mechanisms. At 298 K and 1 bar, the adsorption capacities of Y-dbai for C4H6, 1-C4H8, and i-C4H8 are 2.88, 1.07, and 0.14 mmol g-1, respectively, indicating a molecular sieving effect toward i-C4H8. The C4H6/i-C4H8 and 1-C4H8/i-C4H8 uptake selectivities of Y-dbai are 20.6 and 7.6, respectively, outperforming most of the reported adsorbents. The static and kinetic adsorption experiments coupled with DFT calculations indicate the separation should be attributed to a combined effect of thermodynamically and kinetically controlled mechanism. Breakthrough experiments have confirmed the excellent separation capability of Y-dbai toward C4H6/1-C4H8, C4H6/i-C4H8, and C4H6/1-C4H8/i-C4H8 mixtures.
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Affiliation(s)
- Shi Tu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Jinze Yao
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Siyao Zhao
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Danxia Lin
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Liang Yu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd., Nanshan, Shenzhen, Guangdong, 518055, P. R. China
| | - Xin Zhou
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Hao Wang
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd., Nanshan, Shenzhen, Guangdong, 518055, P. R. China
| | - Ying Wu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Qibin Xia
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
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3
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Liu J, Xiong H, Shuai H, Liu X, Peng Y, Wang L, Wang P, Zhao Z, Deng Z, Zhou Z, Chen J, Chen S, Zeng Z, Deng S, Wang J. Molecular sieving of iso-butene from C 4 olefins with simultaneous high 1,3-butadiene and n-butene uptakes. Nat Commun 2024; 15:2222. [PMID: 38472257 DOI: 10.1038/s41467-024-46607-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 03/05/2024] [Indexed: 03/14/2024] Open
Abstract
Iso-butene (iso-C4H8) is an important raw material in chemical industry, whereas its efficient separation remains challenging due to similar molecular properties of C4 olefins. The ideal adsorbent should possess simultaneous high uptakes for 1,3-butadiene (C4H6) and n-butene (n-C4H8) counterparts, endowing high efficiency for iso-C4H8 separation in adsorption columns. Herein, a sulfate-pillared adsorbent, SOFOUR-DPDS-Ni (DPDS = 4,4'-dipyridyldisulfide), is reported for the efficient iso-C4H8 separation from binary and ternary C4 olefin mixtures. The rigidity in pore sizes and shapes of SOFOUR-DPDS-Ni exerts the molecular sieving of iso-C4H8, while exhibiting high C4H6 and n-C4H8 uptakes. The benchmark Henry's selectivity for C4H6/iso-C4H8 (2321.8) and n-C4H8/iso-C4H8 (233.5) outperforms most reported adsorbents. Computational simulations reveal the strong interactions for C4H6 and n-C4H8. Furthermore, dynamic breakthrough experiments demonstrate the direct production of high-purity iso-C4H8 (>99.9%) from C4H6/iso-C4H8 (50/50, v/v), n-C4H8/iso-C4H8 (50/50, v/v), and C4H6/n-C4H8/iso-C4H8 (50/15/35, v/v/v) gas-mixtures.
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Affiliation(s)
- Junhui Liu
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Hanting Xiong
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Hua Shuai
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Xing Liu
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Yong Peng
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Lingmin Wang
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Pengxiang Wang
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Zhiwei Zhao
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Zhenning Deng
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Zhenyu Zhou
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Jingwen Chen
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Shixia Chen
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Zheling Zeng
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Shuguang Deng
- School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85287, USA
| | - Jun Wang
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, 330031, Jiangxi, China.
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4
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Du S, Huang B, Hao GP, Huang J, Liu Z, Oschatz M, Xiao J, Lu AH. pH-Regulated Refinement of Pore Size in Carbon Spheres for Size-Sieving of Gaseous C 8 , C 6 and C 3 Hydrocarbon Pairs. CHEMSUSCHEM 2023; 16:e202300215. [PMID: 37186177 DOI: 10.1002/cssc.202300215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/24/2023] [Accepted: 04/24/2023] [Indexed: 05/17/2023]
Abstract
Selective separation of industrial important C8 , C6 and C3 hydrocarbon pairs by physisorbents can greatly reduce the energy intensity related to the currently used cryogenic distillation techniques. The achievement of size-sieving based on carbonaceous materials is desirable, but commonly hindered by the random structure of carbons often with a broad pore size distribution. Herein, a pH-regulated pre-condensation strategy was introduced to control the carbon pore architecture by the sp2 /sp3 hybridization of precursor. The lower pH value during pre-condensation of glucose facilitates the growth of aromatic nanodomains, rearrangement of stacked layers and a concomitant transition from sp3 -C to sp2 -C. The subsequent pyrolysis endows the pore size manipulated from 6.8 to 4.8 Å and narrowly distributed over a range of 0.2 Å. The refined pores enable effective size-sieving of C8 , C6 and C3 hydrocarbon pairs with high separation factor of 1.9 and 4.9 for C8 xylene (X) isomers para-X/meta-X and para-X/ortho-X, respectively, 5.1 for C6 alkane isomers n-hexane/3-methylpentane, and 22.0 for C3 H6 /C3 H8 . The excellent separation performance based-on size exclusion effect is validated by static adsorption isotherms and dynamic breakthrough experiments. This synthesis strategy provides a means of exploring advanced carbonaceous materials with controlled hybridized structure and pore sizes for challenging separation needs.
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Affiliation(s)
- Shengjun Du
- Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Ministry of Education, Department of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
- Institute for Technical Chemistry and Environmental Chemistry, Center for Energy and Environmental Chemistry Jena, Friedrich-Schiller-University, Jena, 07745, Germany
| | - Baolin Huang
- Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Ministry of Education, Department of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Guang-Ping Hao
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources and School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Jiawu Huang
- Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Ministry of Education, Department of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Zewei Liu
- Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Ministry of Education, Department of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Martin Oschatz
- Institute for Technical Chemistry and Environmental Chemistry, Center for Energy and Environmental Chemistry Jena, Friedrich-Schiller-University, Jena, 07745, Germany
| | - Jing Xiao
- Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Ministry of Education, Department of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - An-Hui Lu
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources and School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
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5
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Du S, Huang J, Ryder MR, Daemen LL, Yang C, Zhang H, Yin P, Lai Y, Xiao J, Dai S, Chen B. Probing sub-5 Ångstrom micropores in carbon for precise light olefin/paraffin separation. Nat Commun 2023; 14:1197. [PMID: 36864084 PMCID: PMC9981619 DOI: 10.1038/s41467-023-36890-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 02/17/2023] [Indexed: 03/04/2023] Open
Abstract
Olefin/paraffin separation is an important but challenging and energy-intensive process in petrochemical industry. The realization of carbons with size-exclusion capability is highly desirable but rarely reported. Herein, we report polydopamine-derived carbons (PDA-Cx, where x refers to the pyrolysis temperature) with tailorable sub-5 Å micropore orifices together with larger microvoids by one-step pyrolysis. The sub-5 Å micropore orifices centered at 4.1-4.3 Å in PDA-C800 and 3.7-4.0 Å in PDA-C900 allow the entry of olefins while entirely excluding their paraffin counterparts, performing a precise cut-off to discriminate olefin/paraffin with sub-angstrom discrepancy. The larger voids enable high C2H4 and C3H6 capacities of 2.25 and 1.98 mmol g-1 under ambient conditions, respectively. Breakthrough experiments confirm that a one-step adsorption-desorption process can obtain high-purity olefins. Inelastic neutron scattering further reveals the host-guest interaction of adsorbed C2H4 and C3H6 molecules in PDA-Cx. This study opens an avenue to exploit the sub-5 Å micropores in carbon and their desirable size-exclusion effect.
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Affiliation(s)
- Shengjun Du
- grid.79703.3a0000 0004 1764 3838School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Jiawu Huang
- grid.79703.3a0000 0004 1764 3838School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Matthew R. Ryder
- grid.135519.a0000 0004 0446 2659Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN USA
| | - Luke L. Daemen
- grid.135519.a0000 0004 0446 2659Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN USA
| | - Cuiting Yang
- grid.79703.3a0000 0004 1764 3838School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Hongjun Zhang
- grid.59053.3a0000000121679639State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, China
| | - Panchao Yin
- grid.79703.3a0000 0004 1764 3838State Key Laboratory of Luminescent Materials and Devices, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, China
| | - Yuyan Lai
- grid.79703.3a0000 0004 1764 3838State Key Laboratory of Luminescent Materials and Devices, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, China
| | - Jing Xiao
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China.
| | - Sheng Dai
- Department of Chemistry, Institute for Advanced Materials and Manufacturing, University of Tennessee, Knoxville, TN, USA. .,Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA.
| | - Banglin Chen
- Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian, China.
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Wang YS, Li TY, Ba YQ, Zheng Z, Hao GP, Lu AH. “Mortar-and-cobblestone” type carbon pellets with interlinked C3H6-philic domains and mesoporous transport channels for propylene/propane separation. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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7
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Du S, Leistenschneider D, Xiao J, Dellith J, Troschke E, Oschatz M. Application of Thermal Response Measurements to Investigate Enhanced Water Adsorption Kinetics in Ball-Milled C 2 N-Type Materials. Chemistry 2022; 11:e202200193. [PMID: 36511511 PMCID: PMC9746058 DOI: 10.1002/open.202200193] [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: 08/31/2022] [Revised: 11/14/2022] [Indexed: 12/15/2022]
Abstract
Sorption-based water capture is an attractive solution to provide potable water in arid regions. Heteroatom-decorated microporous carbons with hydrophilic character are promising candidates for water adsorption at low humidity, but the strong affinity between the polar carbon pore walls and water molecules can hinder the water transport within the narrow pore system. To reduce the limitations of mass transfer, C2 N-type carbon materials obtained from the thermal condensation of a molecular hexaazatriphenylene-hexacarbonitrile (HAT-CN) precursor were treated mechanochemically via ball milling. Scanning electron microscopy as well as static light scattering reveal that large pristine C2 N-type particles were split up to a smaller size after ball milling, thus increasing the pore accessibility which consequently leads to faster occupation of the water vapor adsorption sites. The major aim of this work is to demonstrate the applicability of thermal response measurements to track these enhanced kinetics of water adsorption. The adsorption rate constant of a C2 N material condensed at 700 °C remarkably increased from 0.026 s-1 to 0.036 s-1 upon ball milling, while maintaining remarkably high water vapor capacity. This work confirms the advantages of small particle sizes in ultramicroporous materials on their vapor adsorption kinetics. It is demonstrated that thermal response measurements are a valuable and time-saving method to investigate water adsorption kinetics, capacities, and cycling stability.
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Affiliation(s)
- Shengjun Du
- Institute for Technical Chemistry and Environmental ChemistryCenter for Energy and Environmental Chemistry Jena (CEEC Jena)Friedrich-Schiller-University JenaPhilosophenweg 7a07743JenaGermany,School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou510641China
| | - Desirée Leistenschneider
- Institute for Technical Chemistry and Environmental ChemistryCenter for Energy and Environmental Chemistry Jena (CEEC Jena)Friedrich-Schiller-University JenaPhilosophenweg 7a07743JenaGermany
| | - Jing Xiao
- School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou510641China
| | - Jan Dellith
- Department Competence Center for Micro- and NanotechnologiesLeibniz Institute of Photonic TechnologyAlbert-Einstein-Straße 907745JenaGermany
| | - Erik Troschke
- Institute for Technical Chemistry and Environmental ChemistryCenter for Energy and Environmental Chemistry Jena (CEEC Jena)Friedrich-Schiller-University JenaPhilosophenweg 7a07743JenaGermany
| | - Martin Oschatz
- Institute for Technical Chemistry and Environmental ChemistryCenter for Energy and Environmental Chemistry Jena (CEEC Jena)Friedrich-Schiller-University JenaPhilosophenweg 7a07743JenaGermany
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8
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Xu S, Li WC, Wang C, Liu R, Hao GP, Lu AH. Beyond the Selectivity-Capacity Trade-Off: Ultrathin Carbon Nanoplates with Easily Accessible Ultramicropores for High-Efficiency Propylene/Propane Separation. NANO LETTERS 2022; 22:6615-6621. [PMID: 35938361 DOI: 10.1021/acs.nanolett.2c01930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Rapid and highly efficient C3H6/C3H8 separation over porous carbons is seriously hindered by the trade-off effect between adsorption capacity and selectivity. Here, we report a new type of porous carbon nanoplate (CNP) featuring an ultrathin thickness of around 8 nm and easily accessible ultramicropores (approximately 5.0 Å). The ultrathin nature of the material allows a high accessibility of gas molecules into the interior transport channels, and ultramicropores magnify the difference in diffusion behavior between C3H6 and C3H8 molecules, together ensuring a remarkable C3H6/C3H8 separation performance. The CNPs show a high and steady C3H6 capacity of up to 3.03 mmol g-1 at 298 K during consecutive dynamic cycles, which is superior to that of the state-of-the-art porous carbons and even porous crystalline materials. In particular, the CNPs show a rapid gas diffusivity, which is 1000 times higher than that of conventional activated carbons. This research provides a promising design principle for addressing the selectivity-capacity trade-off for other types of adsorbent materials.
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Affiliation(s)
- Shuang Xu
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, and School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Wen-Cui Li
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, and School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Chengtong Wang
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, and School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Rushuai Liu
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, and School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Guang-Ping Hao
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, and School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - An-Hui Lu
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, and School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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9
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Separation of perfluorinated electron specialty gases on microporous carbon adsorbents with record selectivity. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121059] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Wang YS, Zhang XJ, Ba YQ, Li TY, Hao GP, Lu AH. Recent Advances in Carbon-Based Adsorbents for Adsorptive Separation of Light Hydrocarbons. Research (Wash D C) 2022; 2022:9780864. [PMID: 35935141 PMCID: PMC9275103 DOI: 10.34133/2022/9780864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 05/17/2022] [Indexed: 11/26/2022] Open
Abstract
Light hydrocarbons (LHs) separation is an important process in petrochemical industry. The current separation technology predominantly relies on cryogenic distillation, which results in considerable energy consumption. Adsorptive separation using porous solids has received widespread attention due to its lower energy footprint and higher efficiency. Thus, tremendous efforts have been devoted to the design and synthesis of high-performance porous solids. Among them, porous carbons display exceptional stability, tunable pore structure, and surface chemistry and thus represent a class of novel adsorbents upon achieving the matched pore structures for LHs separations. In this review, the modulation strategies toward advanced carbon-based adsorbents for LHs separation are firstly reviewed. Then, the relationships between separation performances and key structural parameters of carbon adsorbents are discussed by exemplifying specific separation cases. The research findings on the control of the pore structures as well as the quantification of the adsorption sites are highlighted. Finally, the challenges of carbonaceous adsorbents facing for LHs separation are given, which would motivate us to rationally design more efficient absorbents and separation processes in future.
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Affiliation(s)
- Yong-Sheng Wang
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xue-Jie Zhang
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Ya-Qi Ba
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Tian-Yi Li
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Guang-Ping Hao
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - An-Hui Lu
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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11
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Zhang J, Liu Z, Liu H, Xu F, Li Z, Wang X. Preferential Adsorption Performance of Ethane in a Robust Nickel-Based Metal-Organic Framework for Separating Ethane from Ethylene. ACS OMEGA 2022; 7:7648-7654. [PMID: 35284739 PMCID: PMC8908538 DOI: 10.1021/acsomega.1c06309] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/19/2022] [Indexed: 05/29/2023]
Abstract
Development of an ethane-selective adsorbent to separate ethane from ethylene is a challenging issue with great significance for ethylene purification. The adsorptive separation technique based on physical adsorption holds a great promise to address this issue. Herein, we report a robust ethane-selective metal-organic framework, Ni(BODC)(TED), and investigate its separation performance on C2H6/C2H4. The as-synthesized Ni(BODC)(TED) exhibits excellent water vapor stability and high capacity of C2H6 molecules with an uptake of 3.36 mmol/g at 298 K and 100 kPa, higher than those of many adsorbents reported in recent years. Its C2H6/C2H4 selectivity predicted by the ideal adsorbed solution theory (IAST) model reaches 1.79. A molecular simulation is applied to unveil the preferential adsorption mechanism of ethane. Calculation shows that five strong C-H···H interactions are formed between C2H6 and the framework of Ni(BODC)(TED), and the isosteric heat of ethane on Ni(BODC)(TED) is 27.02 kJ/mol, higher than that of ethylene, resulting in preferential adsorption of ethane. Ni(BODC)(TED) would become a promising member of the family of ethane-selective materials for the industrial separation of ethane from ethylene.
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Affiliation(s)
- Jingyao Zhang
- School
of Chemistry and Chemical Engineering, South
China University of Technology, Guangzhou 510640, China
| | - Zewei Liu
- School
of Chemistry and Chemical Engineering, South
China University of Technology, Guangzhou 510640, China
| | - Hongbin Liu
- School
of Chemistry and Chemical Engineering, South
China University of Technology, Guangzhou 510640, China
| | - Feng Xu
- School
of Environment and Chemical Engineering, Foshan University, Foshan 528225, China
| | - Zhong Li
- School
of Chemistry and Chemical Engineering, South
China University of Technology, Guangzhou 510640, China
| | - Xun Wang
- School
of Chemistry and Chemical Engineering, South
China University of Technology, Guangzhou 510640, China
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12
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Highly selective separation of propylene/propane mixture on cost-effectively four-carbon linkers based metal-organic frameworks. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2021.12.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Xu S, Liu RS, Zhang MY, Lu AH. Designed synthesis of porous carbons for the separation of light hydrocarbons. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2021.11.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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