Nanocrystalline gamma-alumina: A highly active catalyst for dimethyl ether synthesis |
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| Authors: | Ahmad Reza Keshavarz Fereydoon Yaripour |
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| Affiliation: | a Catalyst and Advanced Materials Research Laboratory, Chemical Engineering Department, Faculty of Engineering, University of Kashan, Kashan, Iran
b Petrochemical Research & Technology Company (NPC-RT), Tehran, Iran |
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| Abstract: | In this article, mesoporous nanocrystalline γ-Al2O3 with high surface area is synthesized by a simple sol-gel method with cationic surfactant as template. This sample is used for vapor-phase dehydration of methanol to Dimethyl ether. The synthesized catalyst showed a high surface area of 375 m2 g− 1 and a crystallite size of about 3.9 nm. NH3-TPD analysis revealed that the sample with smaller crystallite size possesses higher concentration of medium acidic sites and consequently the catalytic activity. |
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| Keywords: | Nanocrystalline materials Catalysis Dimethyl ether |
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