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

被引：0
|
作者：
Hamed Rashidi
Ahmad Shariati
Mohammad Reza Khosravi-Nikou
Touba Hamoule
机构：
[1] Petroleum University of Technology,Gas Engineering Department
[2] Petroleum University of Technology,Science Department
来源：
Korean Journal of Chemical Engineering | 2016年 / 33卷
关键词：
MSU-S Catalyst; Phosphotungusticacid; Mesoporous Catalyst; Methanol to Olefin;
D O I：
暂无
中图分类号：
学科分类号：
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 °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 °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.
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页码：2319 / 2324
页数：5
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