The Dehydration of Methanol to Dimethyl Ether over a Novel Slurry Catalyst

被引：13
|
作者：
Liu, L. [1 ]
Huang, W. [1 ]
Gao, Z. [1 ]
Yin, L. [1 ]
机构：
[1] Taiyuan Univ Technol, Key Lab Coal Sci & Technol, Minist Educ & Shanxi Prov, Taiyuan 030024, Shanxi, Peoples R China
来源：
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS | 2010年 / 32卷 / 15期
基金：
中国国家自然科学基金;
关键词：
dimethyl ether; liquid-phase technology; methanol dehydration; slurry reactor; SOLID-ACID; DME; CONVERSION;
D O I：
10.1080/15567030903030724
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：
A novel slurry catalyst for dehydration of methanol was prepared by complete liquid-phase technology. Its main innovative thought lies in preparing the slurry catalysts directly from solution. The catalysts were characterized using X-ray diffraction, Brunauer-Emmett-Teller, and NH3-TPD. It was found that the main crystal phase of slurry catalyst was boehmite AlO(OH). Also, it was observed that slurry catalyst had a high surface area and pore volume. Activity tests indicated that the slurry catalyst has shown better performance compared to the commercial -Al2O3: the highest methanol conversion was 84.4% at the temperature of 280 degrees C, dimethyl ether selectivity nearly reached 100%. The catalyst showed a good stability during the long-term test of 500 h.
引用
收藏
页码：1379 / 1387
页数：9
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