Title

Preparation of ZSM-5 for DME Synthesis

Presenter Information

Zihao Meng

Department

Chemical and Biochemical Engineering

Major

Chemical Engineering

Research Advisor

Liang, Xinhua

Advisor's Department

Chemical and Biochemical Engineering

Funding Source

Opportunities for Undergraduate Research Experiences

Abstract

The most commonly used catalyst for the synthesis of DME through methanol dehydration is γ-Al2O3, due to its low cost, and high selectivity towards DME. However, γ-Al2O3 tends to adsorb water produced during the reaction, which makes it an unreliable catalyst because of deactivation. On the other hand, zeolite, such as ZSM-5, has huge catalytic potential as dehydration components in DME synthesis, because of its high resistance toward water adsorption, tunable acidity, and high activity. In this study, we explored the effect of pressing and grinding on the catalytic performance of DME catalyst granules. Besides, through both literature survey and experiment, influences of temperature, acidity & structure of zeolite, and surface modification on ZSM-5 catalytic performance, were evaluated by selectivity and yield of DME as well as methanol conversion. At last, the possible changes of zeolite crystal structure during the synthesis process and their influences on catalytic activity were investigated through literature research.

Biography

Zihao Meng is a senior majoring in Chemical Engineering in the department of Chemical and Biochemical Engineering. He has strong interests in studying catalysts and nanomaterial. As a participant of OURE program, he has been working in Dr. Liang’s lab since Fall 2018. He is also a member of American Institute of Chemical Engineers (AIChE), Tau Beta Pi and a design team at Missouri S&T.

Research Category

Engineering

Presentation Type

Poster Presentation

Document Type

Poster

Location

Upper Atrium

Presentation Date

16 Apr 2019, 9:00 am - 3:00 pm

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Apr 16th, 9:00 AM Apr 16th, 3:00 PM

Preparation of ZSM-5 for DME Synthesis

Upper Atrium

The most commonly used catalyst for the synthesis of DME through methanol dehydration is γ-Al2O3, due to its low cost, and high selectivity towards DME. However, γ-Al2O3 tends to adsorb water produced during the reaction, which makes it an unreliable catalyst because of deactivation. On the other hand, zeolite, such as ZSM-5, has huge catalytic potential as dehydration components in DME synthesis, because of its high resistance toward water adsorption, tunable acidity, and high activity. In this study, we explored the effect of pressing and grinding on the catalytic performance of DME catalyst granules. Besides, through both literature survey and experiment, influences of temperature, acidity & structure of zeolite, and surface modification on ZSM-5 catalytic performance, were evaluated by selectivity and yield of DME as well as methanol conversion. At last, the possible changes of zeolite crystal structure during the synthesis process and their influences on catalytic activity were investigated through literature research.