太原理工大学学报Issue(5)：508-513,519,7.DOI:10.16355/j.cnki.issn1007-9432tyut.2015.05.006
硅溶胶对二甲醚Si-Al基催化剂性能的影响
Effect of Different Type Silica Sol on the Performance of Si-Al Based Catalysts for Dimethyl Ether Synthesis in a Slurry Reactor
摘要
Abstract
The catalysts in this paper were prepared by a complete liquid‐phase technology u‐sing different types of silica sols and their catalytic performances were evaluated in a slurry reac‐tor and characterized with FTIR ,XRD ,H2‐TPR and N2 adsorption .It is found that the addition of silica element can markedly increase the catalytic activity and the selectivity of dimethyl ether (DME) ,and alkaline silica sols are more helpful to the stability of the catalyst .The catalyst pre‐pared with JN‐30 silica sol has highest CO conversion and DME selectivity .It is concluded that the catalysts prepared with alkaline silica sols have stronger interaction among their components and the more Cu+ species contribute to the good catalyst stability .关键词
完全液相法/二甲醚/Si-Al基催化剂/硅溶胶Key words
complete liquid-phase technology/DM E/Si-Al based catalyst/silica sols分类
化学化工引用本文复制引用
孙凯,赵志换,唐钰,黄伟..硅溶胶对二甲醚Si-Al基催化剂性能的影响[J].太原理工大学学报,2015,(5):508-513,519,7.基金项目
国家自然科学基金重点项目合成气高效转化集成工艺及其关键科学与技术问题的研究（21336006）；国家自然科学基金面上项目（21176176）；高等学校博士学科点专项（优先发展领域） （）
