Pith based spherical activated carbon for CO2 removal from flue gases
Pith based spherical activated carbon for CO2 removal from flue gases
复制标题
用于去除烟气中二氧化碳的髓基球形活性炭
DOI：
10.1016/j.ces.2011.06.070
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发表时间：
2011-11
影响因子：
4.7
通讯作者：
Ling, Licheng1
中科院分区：
文献类型：
--
作者：
Wang, Zhinan1;Zhan, Liang1;Ge, Ming1;Xie, Fei1;Wang, Yanli1;Qiao, Wenming1;Liang, Xiaoyi1;Ling, Licheng1
Serials of pitch based spherical activated carbons (PSACs) were prepared and used as adsorbent for CO2adsorption from flue gases. The results indicate that the ultrafine micropores (<1nm) are effective pores for CO2adsorption, and the equilibrium adsorption capacity of CO2has a linear relationship with the specific surface area of ultrafine micropores (S<1nm). The adsorption capacity of CO2can obtain 1.12mmol/g at 15kPa and 30°C on one of PSAC sample due to its high S<1nm(845m2/g). Because the molecular CO2can be polarized into polar molecules and has four kinds of adsorption configuration, the adsorption selectivities of CO2vs. N2and O2are 86.99% and 69.91%, respectively. When the combined Electric Swing Adsorption and Vacuum Swing Adsorption were applied for CO2desorption, 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.
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