燃料化学学报2021，Vol.49Issue(11)：1592-1598,7.DOI:10.1016/S1872-5813(21)60163-9
Co/SiO2预处理制备高活性低CH4选择性FT合成催化剂
Pretreating Co/SiO2 to generate highly active Fischer-Tropsch synthesis catalyst with low CH4 selectivity
摘要
Abstract
The effects of pretreatment methods (DR, R, ROR) on the microstructure of Co/SiO2 catalysts and the activity for Fischer-Tropsch synthesis (FTS) were investigated. The pretreated catalysts were characterized by TEM, HRTEM, XRD, XPS, H2-TPD, TG and TPR. The results showed that after the pretreatments, specific morphological of the Co species changed, forming new Co active surface species. The Co particles redispersed and the Co species was facile to be re-reduced. The Co/SiO2 catalysts pretreated by different method showed different catalytic performance. The catalyst treated by the reduction-passivation had higher activity and C5+ selectivity for FTS.关键词
预处理方法/Co/SiO2催化剂/费托合成Key words
pretreatment methods/Co/SiO2 catalyst/Fischer-Tropsch synthesis分类
化学化工引用本文复制引用
穆仕芳,尚如静,陈建刚,张建利..Co/SiO2预处理制备高活性低CH4选择性FT合成催化剂[J].燃料化学学报,2021,49(11):1592-1598,7.基金项目
The project was supported by the Foundation of State Key Laboratory of Coal Conversion(J20-21-612),the Initiation Foundation of Henan Polytechnic University(B2019-54)and Henan Key Laboratory of Coal Green Conversion(CGCF201910). （J20-21-612）
