文献类型：期刊文献

英文题名：Effect of MoO3 on catalytic performance and stability of the SBA-16 supported Ni-catalyst for CO methanation

作者：Bian, Zhicheng[1];Meng, Xin[1,2];Tao, Miao[1];Lv, YuHao[1];Xin, Zhong[1,2]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Multiphase Mat Chem Engn, Sch Chem Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, State Key Lab Chem Engn, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：179

起止页码：193

外文期刊名：FUEL

收录：;EI(收录号：20161502229096);WOS:【SCI-EXPANDED(收录号:WOS:000374977300023)】；

基金：This research was financially supported by National Natural Science Funds of China (Grant Nos. U1203293 and 91434128), the Program of Shanghai Subject Chief Scientist (Grant No. 10Xd1401500) and the Program of Shanghai Leading Talents (2013).

语种：英文

外文关键词：Methanation of CO; Nickel catalysts; SBA-16; MoO3; Metal surface area

摘要：A series of Ni/SBA-16 and NiMo/SBA-16 catalysts were prepared by the impregnation methods and their performance on synthetic natural gas (SNG) production were systematically investigated in a continuous flow fixed-bed reactor. Catalysts were characterized by nitrogen physisorption, powder X-ray diffraction (XRD), transmission electron microscopy (TEM), H-2 pulse chemisorption, temperature-programmed reduction (TPR), X-ray photoelectron spectroscopy (XPS). Catalysts with the addition of MoO3 exhibited larger metal surface area and better heat-resistant performance, because the strong interaction between Ni and SBA-16 was formed. Mo-Ni/SBA-16(1 wt%) achieves the best activity with 100% CO conversion and 97% CH4 selectivity at 350 degrees C, 0.1 MPa, and 15,000 mL/g/h. The activity of Mo-Ni/SBA-16(1 wt%) remain stable after calcination in reactant gases at 700 degrees C and during the 100 h reaction period. It was noting that for catalysts with large metal particle size (more than 20 nm) CO methanation turned to be a structure-insensitive reaction, which the activity is related to the amount of active site rather than the particle size. (C) 2016 Elsevier Ltd. All rights reserved.