期刊
CHEMICAL PHYSICS LETTERS
卷 738, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.cplett.2019.136910
关键词
Carbon molecular sieve membrane; Gas separation; Molecular simulation; Pore size; Structure optimization
资金
- National Key R&D Program of China, China [2017YFB0603403]
- National Natural Science Foundation of China, China [21436009, 21576035, 21676044, 21776033, 21878033]
- Dalian Science and Technology Innovation Fund, China [2018J12GX031]
Zigzag-type pore model with a modified structure was proposed to evaluate the effect of micropore structure on the gas separation performance of carbon molecular sieve membranes (CMSM). Molecular simulation was applied to investigate the adsorption and diffusion of equimolar CO2/CH4 mixture in the micropores of CMSM and the separation performance. Results showed that the simulated isotherms of CO2 and CH4 were consistent with the experimental ones at pore size of 0.54 nm. The separation performance of CO2/CH4 mixture would be the largest at pore size of 0.6 nm under bending cell length of 3.767 nm and bending angle of 150 degrees.
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