Methanol dehydration to produce dimethyl ether over g-Al2O3 |
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| Authors: | Eon-Young Lee Young-Kwon Park Oh-Shim Joo and and Kwang-Deog Jung |
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| Institution: | (1) Department of Environmental Engineering, Dondaemun-Gu Geonnong Dong 90, Seoul, Korea;(2) Department of Environmental Engineering, Dondaemun-Gu Geonnong Dong 90, Seoul, Korea;(3) Eco-Nano Center, Korea Institute of Science and Technology,, Sungbuk-Gu, Hawolgok-Dong 39-1, Seoul, Korea;(4) Eco-Nano Center, Korea Institute of Science and Technology,, Sungbuk-Gu, Hawolgok-Dong 39-1, Seoul, Korea |
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| Abstract: | Summary The kinetic data of about 150 points for methanol dehydration were obtained at the temperature of 240~270oC, the GHSV of 25,000~120,000 (mL/gcat./h) and under atmospheric pressure. The data were fitted into six plausible equations. The kinetic equation derived from
the molecular adsorption of methanol on two sites fit the kinetic data best, however, that from the dissociative adsorption
of methanol could not be safely ruled out. The activation energy of 114.7 kJ/mol for methanol dehydration on γ-Al2O3 was obtained from the kinetic analysis. |
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