%0 Journal Article
%T Carbon dioxide capture using polyethylenimine-loaded mesoporous carbons
%A Jitong Wang
%A Huichao Chen
%A Huanhuan Zhou
%A Xiaojun Liu
%A Wenming Qiao
%A Donghui Long
%A Licheng Ling
%A <br>Jitong Wang
%A Huichao Chen
%A Huanhuan Zhou
%A Xiaojun Liu
%A Wenming Qiao
%A Donghui Long
%A Licheng Ling
%J 环境科学学报(英文版)
%D 2013
%I 
%X 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.
%K carbon dioxide capture
%K polyethylenimine
%K mesoporous carbon
%K amine utilization ratio<br>carbon
%K dioxide
%K capture
%K polyethylenimine
%K mesoporous
%K carbon
%K amine
%K utilization
%K ratio
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=2DB3B6D3544EDEBDDEC45E536C95AC47&yid=FF7AA908D58E97FA&iid=CA4FD0336C81A37A&sid=2F56B21F91C9B05B&eid=7C72DBC13F2D71EC&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=0&reference_num=33