A selective catalyst for methanol conversion into light olefin with a high propylene to ethylene ratio

被引：7
|
作者：
Rashidi, Hamed [1 ]
Shariati, Ahmad [1 ]
Khosravi-Nikou, Mohammad Reza [1 ]
Hamoule, Touba [2 ]
机构：
[1] Petr Univ Technol, Gas Engn Dept, Ahvaz, Iran
[2] Petr Univ Technol, Dept Sci, Ahvaz, Iran
来源：
KOREAN JOURNAL OF CHEMICAL ENGINEERING | 2016年 / 33卷 / 08期
关键词：
MSU-S Catalyst; Phosphotungusticacid; Mesoporous Catalyst; Methanol to Olefin; MESOPOROUS ALUMINOSILICATES; HYDROTHERMAL STABILITY; SAPO-34; CATALYSTS; MTO REACTION; COMBINATION;
D O I：
10.1007/s11814-016-0089-3
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
MSU-S catalyst, assembled from ZSM-5 zeolite seed (MFI), was synthesized with silica to alumina ratio 55 and characterized by XRD, NH3-TPD, BET and FT-IR techniques. It was tested in a vertical fixed bed reactor for selective production of light olefins from methanol (MTO) at temperatures of 400, 450 and 500 A degrees C and WHSV of 1, 5 and 25 h(-1). After thorough investigation, it was found that WHSV=5 h(-1) and temperature of 500 A degrees C are the optimum conditions for maximum light olefin yield, which was 52% with propylene to ethylene ratio of 4.57. Acidity of MSU-S was promoted by incorporation of phosphotungusticacid (HPW) and a direct method to reach high HPW dispersion and thermal stability. Maximum light olefin yield was observed over HPW-MSU-S at the optimum reaction conditions to be nearly 60% with propylene to ethylene ratio of 4.3.
引用
收藏
页码：2319 / 2324
页数：6
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