高等学校化学研究（英文版）
高等學校化學研究（英文版）
고등학교화학연구（영문판）
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
2012年
1期
129-132
,共4页
Separation%Carbon dioxide%Water vapor%Vacuum swing adsorption
Multiple-layered vacuum swing adsorption technique was used and investigated in order to effectively keep the feed gas that flows into zeolite 13X zone being dry and keep the CAPEX down(not adding pre-treatment equipment).Activated carbon fiber(ACF) and alumina CDX were laid at the lower parts of the column as pre-layers to selectively adsorb moisture.Zeolite 13X was laid on the top of those two adsorbents as the main layer to capture CO2.Systematic cyclic experiments show that water vapor was successfully contained within the ACF and CDX layers at cyclic steady states.It was also found that ultimate vacuum pressure played a decisive factor for stabilizing the water front,and achieving good CO2 purity and recovery.The findings also reveal the pathway for large-scale CO2 capture process.
