期刊
CHEMICAL PHYSICS
卷 412, 期 -, 页码 72-76出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chemphys.2012.12.012
关键词
Adsorption; CO2 capture
Experimental adsorption isotherms of CO2, CH4 and N-2 in ZIF-8, Zeolite 13X and BPL activated carbon are reported at 25 degrees C and up to 1 bar. Results show that the adsorption capacity of Zeolite-13X is very sensitive to the activation temperature used. When properly activated its gas uptake is considerably higher than BPL activated carbon and ZIF-8. CO2/CH4 and CO2/N-2 mixture adsorption isotherms based on IAST calculations reveal that Zeolite-13X also has significantly higher selectivities for CO2 compared to BPL activated carbon and ZIF-8. ZIF-8 performs poorly for CO2 separations within the pressure range investigated; on the other hand, its adsorption capacity shows no dependence of regeneration temperature. (C) 2012 Elsevier B.V. All rights reserved.
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