燃料化学学报2018，Vol.46Issue(5)：564-568,5.
La改性HZSM-5分子筛催化剂甲醇转化制汽油反应性能研究
Catalytic performance of La-modified HZSM-5 catalysts for methanol to gasoline reaction
摘要
Abstract
La-modified HZSM-5 catalysts were prepared by impregnation method, and characterized by XRD, NH3-TPD, Py-FTIR and N2adsorption/desorption techniques. Their catalytic performance in methanol to gasoline (MTG) reaction was evaluated in a fixed-bed tubular reactor at 350℃ and WHSV of 4.74 h-1under ambient pressure. The results show that the introduction of La decreased the amount of acid sites,specific surface area and pore volume of HZSM-5 catalyst. The catalyst with La loading of 4% exhibited the best catalytic performance in MTG reaction, over which the lifetime and gasoline yield increased from 12 h and 52.69% to 16 h and 59.28%,respectively. In addition,the selectivity to aromatics in gasoline decreased markedly by 18% with increasing La content.关键词
甲醇转化制汽油/HZSM-5分子筛/LaKey words
methanol to gasoline/HZSM-5 zeolite/La分类
化学化工引用本文复制引用
朱辉,黄慧文,张善鹤,张强,李春义..La改性HZSM-5分子筛催化剂甲醇转化制汽油反应性能研究[J].燃料化学学报,2018,46(5):564-568,5.基金项目
国家自然科学基金(21406270)资助 The project was supported by the National Natural Science Foundation of China(21406270). （21406270）
