化工进展2009，Vol.28Issue(12)：2160-2163,2168,5.
溶剂对完全液相法制CuZnAl浆状催化剂结构和性能的影响
Effect of solvent on the structure and performance of CuZnAl catalyst prepared by complete liquid phase technology
摘要
Abstract
Al-based slurry catalysts using pseudo-boehmite as aluminum source were prepared by complete liquid phase technology, and the catalyst precursors Cu(NO_3)_2 and Zn(NO_3)_2were dissolved in different solvents. The as-prepared catalysts were characterized by means of X-ray diffraction, N_2 adsorption, Xray photoelectron spectroscopy and H_2 temperature-programmed reduction. Performance of the catalysts was evaluated in a slurry reactor for the synthesis of dimethyl ether (DME) from syngas. Results indicated that different solvent has significant influence on the catalyst structure and performance. Using glycol as solvent, the catalyst shows a stable phase structure and largest pore diameter and pore volume, meanwhile, the catalyst has more reducible copper and can be easily reduced. Therefore, the catalyst shows enhanced CO conversation while keeping the DME selectivity unchanged.关键词
完全液相法/二甲醚/拟薄水铝石/乙二醇/合成气Key words
complete liquid phase technology/dimethyl ether/pseudo-boehmite/glycol/syngas分类
化学化工引用本文复制引用
高志华,李俊芳,黄伟,阴丽华,谢克昌..溶剂对完全液相法制CuZnAl浆状催化剂结构和性能的影响[J].化工进展,2009,28(12):2160-2163,2168,5.基金项目
国家自然科学基金(20706039)、国家973计划(2005CB221204)及山西省青年科技研究基金(2006021010)资助项目. （20706039）
