Articles & Issues

Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received December 7, 2015
Accepted March 31, 2016

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

All issues

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

Hamed Rashidi Ahmad Shariati Mohammad Reza Khosravi-Nikou^† Touba Hamoule¹

Gas Engineering Department, Petroleum University of Technology, Ahwaz, Iran ¹Science Department, Petroleum University of Technology, Ahwaz, Iran

Korean Journal of Chemical Engineering, August 2016, 33(8), 2319-2324(6), 10.1007/s11814-016-0089-3

Download PDF

Abstract

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 ℃ and WHSV of 1, 5 and 25 h-1. After thorough investigation, it was found that WHSV=5 h-1 and temperature of 500 ℃ 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.

Keywords

MSU-S Catalyst Phosphotungusticacid Mesoporous Catalyst Methanol to Olefin