文献类型：期刊文献

英文题名：Modification of ferrite-manganese oxide sorbent by doping with cerium oxide

作者：Zhao, Hai[1];Zhang, Dexiang[1];Wang, Fanfang[1];Wu, Tingting[1];Gao, Jinsheng[1]

机构：[1]E China Univ Sci & Technol, Dept Chem Technol Energy Sources, Shanghai 200237, Peoples R China

年份：2008

卷号：86

期号：B6

起止页码：448

外文期刊名：PROCESS SAFETY AND ENVIRONMENTAL PROTECTION

收录：;EI(收录号：20084311660466);WOS:【SCI-EXPANDED(收录号:WOS:000261289500006)】；

基金：The authors thank Major State Basic Research Development Program of China for financial support for this work under Project No.2005CB221203. This study is also supported by Program for Changjiang Scholars and innovative Research Team in University (PCSIRT).

语种：英文

外文关键词：COS removal; Syngas; Ce-doped; Fe-Mn-Ce sorbent

摘要：Fe-Mn oxide and Ce-doped Fe-Mn oxide sorbents were studied on the structural and desulfurization behavior in COS removal from syngas. The effects of cerium oxide on the Fe-Mn oxides have been investigated by XRD, BET, TPR, XPS and TEM methods. Analysis data show that the Ce-doped sorbent has larger specific surface area and better particles' dispersion compared with non-modified Fe-Mn sorbent. The addition of Ce improves the reduction performance of Fe-Mn species. The desulfurization experiments show that the desulfurization activity of sorbent can be increased because of the promotion of the structural and redox properties by ceria doped. The Ce-doped sorbent can reduce COS from 15,000ppmv to less than 0.1 ppmv at 325 degrees C and a space velocity of 1000 h(-1). (c) 2008 The Institution of Chemical Engineers. Published by Elsevier B.V All rights reserved.