Influence of structure type of Al2O3 on dehydration of methanol for dimethyl ether synthesis
- Authors
- Seo, Chang Won; Jung, Kwang Deok; Lee, Kwan Young; Yoo, Kye Sang
- Issue Date
- 3-9월-2008
- Publisher
- AMER CHEMICAL SOC
- Keywords
- Solid-acid catalysts; Gamma-alumina; Surface-chemistry; DME; ETA; Hydroxide; Phosphate; Syngas; ZSM-5
- Citation
- INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, v.47, no.17, pp.6573 - 6578
- Indexed
- SCIE
SCOPUS
- Journal Title
- INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
- Volume
- 47
- Number
- 17
- Start Page
- 6573
- End Page
- 6578
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/122724
- DOI
- 10.1021/ie800106e
- ISSN
- 0888-5885
- Abstract
- This study focused on the effect of alumina properties on the catalytic performance in the dehydration of methanol to synthesize dimethyl ether. The catalysts (gamma-Al2O3 and eta-Al2O3) were prepared from boehmite and bayerite, respectively, via calcination at various temperatures. With heat treatment, the properties of alumina have been changed significantly. Under identical reaction conditions, gamma-Al2O3 calcined at 500 C and eta-Al2O3 calcined at 500 degrees C showed the highest catalytic activity, because of high acid site density among the same types of alumina. Interestingly, eta-Al2O3 showed higher catalytic activity than gamma-Al2O3, although both catalysts possess comparable acidic properties. This means the structure type of alumina is crucial to determine catalytic performance in this reaction.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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