Catalytic Dehydration of Methanol to Dimethyl Ether Over Mesoporous γ-Al2O3

被引：1
作者：
Luan, C. [1 ,2 ]
Zhang, A. [2 ]
Huang, W. [1 ]
Yin, L. [1 ]
机构：
[1] Taiyuan Univ Technol, Minist Educ & Shanxi Prov, Key Lab Coal Sci & Technol, Taiyuan 030024, Shanxi, Peoples R China
[2] Taiyuan Univ Technol, Coll Chem & Chem Engn, Taiyuan 030024, Shanxi, Peoples R China
来源：
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS | 2015年 / 37卷 / 21期
基金：
中国国家自然科学基金;
关键词：
gamma-Al2O3; catalyst; dehydration; dimethyl ether; methanol; HIGH-SURFACE-AREA; SOLID-ACID CATALYSTS; SYNTHESIS GAS; CONVERSION; ALUMINA; OXIDES; DME;
D O I：
10.1080/15567036.2012.699161
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This study focused on the preparation of a high surface area mesoporous gamma-Al2O3 as a catalyst for methanol dehydration. The catalysts were characterized using NH3- temperature-programmed desorption, X-ray diffraction, Brunauer-Emmett-Teller, and transmission electron microscopy techniques and evaluated in a fixed-bed reactor at 250 degrees C at a gas hourly space velocity of 1,000 h(-1) under atmospheric pressure. A three-factor uniform design was utilized to determine the optimal conditions. The catalyst prepared under optimal conditions showed a time-space yield of 0.659 g dimethyl ether/(g cat.h) with selectivity of about 99.99%. The activity showed a significant dependence on the textural properties and enhanced weak acid strength of the alumina.
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收藏
页码：2285 / 2292
页数：8
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