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题名: Amine-modified mesocellular silica foams for CO2 capture
作者: Yan, Xinlong1;  Zhang, Lei1, 2;  Zhang, Ying1;  Qiao, Ke1;  Yan, Zifeng1;  Komarneni, Sridhar3
关键词: MCF ;  Amine impregnation ;  CO2 capture ;  Polyethyleneimine
刊名: CHEMICAL ENGINEERING JOURNAL
发表日期: 2011-04-01
DOI: 10.1016/j.cej.2011.01.066
卷: 168, 期:2, 页:918-924
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Environmental ;  Engineering, Chemical
研究领域[WOS]: Engineering
英文摘要: Three mesocellular silica foam (MCF) materials with different window sizes were prepared and functionalized with polyethyleneimine (PEI) for use as CO2 adsorbents. The as-prepared adsorbents were characterized by XRD, TEM, SEM, nitrogen adsorption/desorption and thermogravimetric (TG) analyses. CO2 capture was performed in a fixed bed reactor operated at atmospheric pressure. The results showed that the CO2 adsorption capacity increased with the window size of the MCF substrates. MCF material that had the largest window size exhibited the largest CO2 uptake of 152.0 mg/g of adsorbent (304.0 mg/g of PEI) with a 50 wt% PEI loading under the conditions of 15.1% (v/v) CO2 in N-2 at 75 degrees C and atmospheric pressure. It is one of the highest capture capacities per gram of PEI reported in the literature thus far under the above conditions used. Repeated adsorption/desorption cycles revealed that the MCF modified by PEI is a good adsorbent for CO2 with good cyclic stability. (C) 2011 Elsevier B.V. All rights reserved.
关键词[WOS]: MESOPOROUS-MOLECULAR-SIEVE ;  CARBON-DIOXIDE CAPTURE ;  MESOSTRUCTURED CELLULAR FOAMS ;  HIGH-CAPACITY ;  GAS STREAMS ;  ADSORPTION ;  ADSORBENT ;  SBA-15 ;  MCM-41 ;  POLYETHYLENEIMINE
语种: 英语
WOS记录号: WOS:000290133700051
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142448
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.China Univ Petr, CNPC Key Lab Catalysis, State Key Lab Heavy Oil Proc, Qingdao 266555, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Penn State Univ, Dept Crop & Soil Sci, University Pk, PA 16802 USA

Recommended Citation:
Yan, Xinlong,Zhang, Lei,Zhang, Ying,et al. Amine-modified mesocellular silica foams for CO2 capture[J]. CHEMICAL ENGINEERING JOURNAL,2011,168(2):918-924.
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