文献类型：期刊文献

英文题名：CO2 capture from flue gas by two successive VPSA units using 13XAPG

作者：Wang, Lu[1]; Liu, Zhen[1]; Li, Ping[1]; Wang, Jin[1]; Yu, Jianguo[1]

机构：[1] State Key Laboratory of Chemical Engineering, College of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China

年份：2012

卷号：18

期号：5-6

起止页码：445

外文期刊名：Adsorption

收录：EI(收录号：20130315902142)

语种：英文

外文关键词：Flues - Global warming - Carbon dioxide - Gas adsorption - Atmospheric pressure - Zeolites

摘要：With the development of novel adsorbent material and adsorption process, adsorption technology has become a potential tool for the CO2 removal from flue gases. The reduction of carbon dioxide emissions from flue gases with two successive vacuum pressure swing adsorption (VPSA) units, using 13XAPG as the adsorbent, was investigated both theoretically and experimentally. A 3-bed 5-step VPSA process was designed to capture CO2 from flue gases, which included feed pressurization, adsorption, rinse, blowdown and counter-current purge. It was found that was difficult to achieve both high CO2 purity and high CO2 recovery by one VPSA unit when capturing CO2 from flue gases at atmospheric pressure. After the verification of one-column VPSA experiment for further concentrating CO 2 stream from one VPSA unit to above 95%purity, two successive VPSA units were designed, composed of 3-bed 5-step cycle for the first unit and 2-bed 6-step cycle for the second unit, and the effects of operating parameters on the separation behaviors were investigated by simulation. With the proposed VPSA process, a CO2 purity of 96.54 % was obtained with recovery of 93.35 %. The total specific power consumption of the two successive VPSA units was 528.39 kJ/kgCO2, while the unit productivity was 0.031 kgCO 2/kg h. ? Springer Science+Business Media New York 2012.