文献类型：期刊文献

英文题名：Pith based spherical activated carbon for CO2 removal from flue gases

作者：Wang, Zhinan[1]; Zhan, Liang[1]; Ge, Ming[1]; Xie, Fei[1]; Wang, Yanli[1]; Qiao, Wenming[1]; Liang, Xiaoyi[1]; Ling, Licheng[1]

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

年份：2011

卷号：66

期号：22

起止页码：5504

外文期刊名：Chemical Engineering Science

收录：EI(收录号：20113814344496)

语种：英文

外文关键词：Carbon dioxide - Flue gases - Activated carbon - Gas adsorption - Microporosity - Desorption

摘要：Serials of pitch based spherical activated carbons (PSACs) were prepared and used as adsorbent for CO2 adsorption from flue gases. The results indicate that the ultrafine micropores (2 adsorption, and the equilibrium adsorption capacity of CO2 has a linear relationship with the specific surface area of ultrafine micropores (S). The adsorption capacity of CO2 can obtain 1.12mmol/g at 15kPa and 30°C on one of PSAC sample due to its high S (845m2/g). Because the molecular CO2 can be polarized into polar molecules and has four kinds of adsorption configuration, the adsorption selectivities of CO2 vs. N2 and O2 are 86.99% and 69.91%, respectively. When the combined Electric Swing Adsorption and Vacuum Swing Adsorption were applied for CO2 desorption, about 100% desorption efficiency can be obtained, the desorption rate is twice of that with Temperature Swing Adsorption (TSA) and the energy consumption is only 69% of that with TSA. ? 2011.