文献类型：期刊文献

英文题名：Effect of Lanthanum on Zr-Co/γ-Al2O3 Catalysts for Fischer-Tropsch Synthesis

作者：Guo, Qi[1];Huang, Jian[1];Qian, Weixin[1];Zhang, Haitao[1];Ma, Hongfang[1];Ying, Weiyong[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Minist Educ, Engn Res Ctr Large Scale Reactor Engn & Technol, Shanghai 200237, Peoples R China

年份：2018

卷号：148

期号：9

起止页码：2789

外文期刊名：CATALYSIS LETTERS

收录：;EI(收录号：20182405299130);WOS:【SCI-EXPANDED(收录号:WOS:000443450900018)】；

基金：This work is supported by the National High-Tech R&D Program of China (2011AA05A204).

语种：英文

外文关键词：Fischer-Tropsch synthesis; Zr-Co/gamma-Al2O3 catalyst; Lanthanum

摘要：Lanthanum promoted Zr-Co/gamma-Al2O3 catalysts, with La loading from 0 to 1.5 wt%, were prepared by the incipient wetness method for Fischer-Tropsch. The impact of La content on the performance of the catalysts was studied by N-2 physisorption, XRD, H-2-TPR, H-2-TPD, CO-TPD and XPS techniques. It is found that the addition of La can affect the interaction between cobalt and support, enhance the cobalt reducibility and increase cobalt active sites, improving catalysts activity and selectivity to heavy hydrocarbons and restraining methane and CO2 selectivity. Comparing with other catalysts, a higher activity with a 91.97% CO conversion and 85.23% selectivity at 220 A degrees C, 2 MPa, and a WHSV of 1000 mL g(-1) h(-1) was achieved by the 0.6La-Zr-Co catalyst. [GRAPHICS] .