文献类型：期刊文献

英文题名：Sodium promoter on iron-based catalyst for direct catalytic synthesis of light alkenes from syngas

作者：Li, Jiang-Bing[1,2];Ma, Hong-Fang[1];Zhang, Hai-Tao[1];Sun, Qi-Wen[3];Ying, Wei-Yong[1];Fang, Ding-Ye[1]

机构：[1]E China Univ Sci & Technol, Engn Res Ctr Large Scale Reactor Engn & Technol, State Key Lab Chem Engn, Minist Educ, Shanghai 200237, Peoples R China;[2]Shihezi Univ, Sch Chem & Chem Engn, Key Lab Green Proc Chem Engn Xinjiang Bingtuan, Xinjiang 832003, Peoples R China;[3]State Key Lab Coal Liquefact & Coal Chem Technol, Shanghai 201203, Peoples R China

年份：2014

卷号：125

起止页码：119

外文期刊名：FUEL PROCESSING TECHNOLOGY

收录：;EI(收录号：20141817645405);WOS:【SCI-EXPANDED(收录号:WOS:000337876300015)】；

基金：We gratefully acknowledge the financial support of the Major State Basic Research Program of China (2010CB736203 and the National High-Tech R&D Program of China (2011AA05A204).

语种：英文

外文关键词：Fischer-Tropsch synthesis; Sodium promoter; Iron-based catalyst; Light alkenes

摘要：Direct catalytic conversion of syngas to light alkenes was carried out on sodium promoted FeMn catalysts by co-precipitation-calcination-impregnation method. N-2-physisorption demonstrated that the addition of sodium decreased surface area. H-2-TPR revealed that excessive sodium inhibited reduction of catalysts. XRD and MES results indicated that sodium made carburization easy. The results showed that the addition of Na/Fe in the range of 0.7-3.5 mol% could improve the light alkene selectivity in syngas conversion. A maximum in CO conversion and light olefin selectivity were noted upon increasing sodium content (2.8 mol% Na/Fe) and then declined. (C) 2014 Elsevier B.V. All rights reserved.