文献类型：期刊文献

中文题名：Carbon dioxide capture using polyethylenimine-loaded mesoporous carbons

英文题名：Carbon dioxide capture using polyethylenimine-loaded mesoporous carbons

作者：Jitong Wang[1];Huichao Chen[1];Huanhuan Zhou[1];Xiaojun Liu[1];Wenming Qiao[1];Donghui Long[1];Licheng Ling[1]

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

年份：2013

卷号：25

期号：1

起止页码：124

中文期刊名：Journal of Environmental Sciences

外文期刊名：环境科学学报（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2013_2014】；PubMed;

基金：supported by the National Natural Science Foundation of China (No. 50730003);the Program for New Century Excellent Talents in University (No. NCET-07-0285);the Fundamental Research Funds for the Central Universities

语种：英文

中文关键词：carbon dioxide capture; polyethylenimine; mesoporous carbon; amine utilization ratio

外文关键词：carbon dioxide capture; polyethylenimine; mesoporous carbon; amine utilization ratio

摘要：A high efficiency sorbent for CO2 capture was developed by loading polyethylenimine （PEI） on mesoporous carbons which possessed well-developed mesoporous structures and large pore volume. The physicochemical properties of the sorbent were characterized by N2 adsorption/desorption, scanning electron microscopy （SEM）, thermal gravimetric analysis （TG） and Fourier transform infrared spectroscopy （FT-IR） techniques followed by testing for CO2 capture. Factors that affected the sorption capacity of the sorbent were studied. The sorbent exhibited extraordinary capture capacity with CO2 concentration ranging from 5% to 80%. The optimal PEI loading was determined to be 65 wt.% with a CO2 sorption capacity of 4.82 mmol-CO2/g-sorbent in 15% CO2/N2 at 75℃, owing to low mass-transfer resistance and a high utilization ratio of the amine compound （63%）. Moisture had a promoting effect on the sorption separation of CO2. In addition, the developed sorbent could be regenerated easily at 100℃, and it exhibited excellent regenerability and stability. These results indicate that this PEI-loaded mesoporous carbon sorbent should have a good potential for CO2 capture in the future.
A high efficiency sorbent for CO2 capture was developed by loading polyethylenimine （PEI） on mesoporous carbons which possessed well-developed mesoporous structures and large pore volume. The physicochemical properties of the sorbent were characterized by N2 adsorption/desorption, scanning electron microscopy （SEM）, thermal gravimetric analysis （TG） and Fourier transform infrared spectroscopy （FT-IR） techniques followed by testing for CO2 capture. Factors that affected the sorption capacity of the sorbent were studied. The sorbent exhibited extraordinary capture capacity with CO2 concentration ranging from 5% to 80%. The optimal PEI loading was determined to be 65 wt.% with a CO2 sorption capacity of 4.82 mmol-CO2/g-sorbent in 15% CO2/N2 at 75℃, owing to low mass-transfer resistance and a high utilization ratio of the amine compound （63%）. Moisture had a promoting effect on the sorption separation of CO2. In addition, the developed sorbent could be regenerated easily at 100℃, and it exhibited excellent regenerability and stability. These results indicate that this PEI-loaded mesoporous carbon sorbent should have a good potential for CO2 capture in the future.