燃料化学学报2011，Vol.39Issue(8)：627-632,6.
浆态床二甲醚合成催化剂失活因素研究
Study on deactivation of different catalysts for dimethyl ether synthesis in slurry reactor
摘要
Abstract
In recent years, much attention has been paid to slurry dimethyl ether synthesis technology due to its advantages in heat transfer, isothermal condition and efficient energy utility. However, the catalyst stability is a bottle-neck to restrict the commercial application. This paper studied the structure and physicochemical properties of Si-Al based catalyst prepared by the complete liquid-phase method. The catalysts were characterized by XRD, TEM, XPS and XRF technics, and then contrasted with traditional hybrid catalyst. The results indicated that there were different reason in their deactivation. Hybird catalyst deactivation was caused by Cu sintering, gathering and specific surface area decreasing. For Si-Al based slurry catalyst, the Cu loss during the reaction was an important reason leading to deactivation.关键词
浆态床/二甲醚/完全液相法/Si-A1基催化剂/失活Key words
dimethyl ether (DME) /slurry reactor/complete liquid phase technology/slurry catalyst/surface property分类
化学化工引用本文复制引用
李志红,宋雅君,左志军,黄伟..浆态床二甲醚合成催化剂失活因素研究[J].燃料化学学报,2011,39(8):627-632,6.基金项目
国家自然科学基金(20676087) （20676087）
国家重点基础研究发展规划(973计划,2005 CB221204). （973计划,2005 CB221204）
