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Activated carbons and amine-modified materials for carbon dioxide capture- a review

Frontiers of Environmental Science & Engineering 2013年第3期7卷 326-340页

作者： Zhenhe CHEN Shubo DENG Haoran WEI Bin WANG Jun HUANG Gang YU State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment POPs Research Center Tsinghua University Beijing 100084 China Tsinghua University .- Veolia Environment Joint Research Center for Advanced Technotogy Tsinghua University Beijing 100084 China

Rapidly increasing concentration of CO2 in the atmosphere has drawn more and more attention in recent years, and adsorption has been considered as an effective technology for CO2 capture from the anthropogenic sources. In this paper, the attractive adsorbents including activated carbons and amine-modified materials were mainly reviewed and discussed with particular attention on progress in the adsorbent preparation and C02 adsorption capacity. Carbon materials can be prepared from different precursors including fossil fuels, biomass and resins using the carbonization-activation or only activation process, and activated carbons prepared by KOH activation with high CO2 adsorbed amount were reviewed in the preparation, adsorption capacity as well as the relationship between the pore characteristics and CO2 adsorption. For the amine-modified materials, the physical impregnation and chemical graft of polyethylenimine （PEI） on the different porous materials were introduced in terms of preparation method and adsorption perfor- mance as well as their advantages and disadvantages for CO2 adsorption. In the last section, the issues and prospect of solid adsorbents for CO2 adsorption were summarized, and it is expected that this review will be helpful for the fundamental studies and industrial applications of acti- vated carbons and amine-modified adsorbents for CO2 capture.

关键词： adsorption capacity CO2 capture activatedcarbon amine-impregnated adsorbents

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