物理化学学报2011，Vol.27Issue(6)：1501-1508,8.
金属改性P/HZSM-5分子筛催化乙醇芳构化
Aromatization of Ethanol over Metal Modified P/HZSM-5 Zeolite
摘要
Abstract
A series of P/HZSM-5 zeolites modified with different metals (Cr, Co, Cu, Zn) were prepared by impregnation. The physicochemical features of the M-P/HZSM-5 catalysts were characterized by X-ray diffraction (XRD), BET surface area measurements, and temperature programmed desorption of ammonia (NH3-TPD). We investigated the catalytic activity upon the aromatization of ethanol. The results showed that the framework of the modified zeolites was retained while the specific surface area decreased and the distribution of the acid sites changed greatly. Cu-P/HZSM-5 gave excellent catalytic activity. When the P loading and the Cu loading were 3％ and 5％ on the HZSM-5 zeolites, respectively, P was modified first and then Cu, the aromatization of ethanol over the 5％ Cu-3％ P/HZSM-5 zeolite achieved 57.6％ with a total light aromatic hydrocarbons (BTX) yield at 400 ℃ and a weight hourly space velocity (WHSV) of 1.0 h-1.关键词
乙醇/芳构化/轻质芳烃/P/HZSM-5分子筛Key words
Ethanol/ Aromatization/ Light aromatic hydrocarbon/ P/HZSM-5 zeolite分类
化学化工引用本文复制引用
张少龙,李斌,张飞跃,马丽,韩艳华,范闽光..金属改性P/HZSM-5分子筛催化乙醇芳构化[J].物理化学学报,2011,27(6):1501-1508,8.基金项目
国家自然科学基金(20763001)和广西省自然科学基金(0640004)资助项目 （20763001）
