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2002•Bulletin of the Korean Chemical SocietyOpen access

Catalytic Dehydration of Methanol to Dimethyl Ether (DME) over Solid-Acid Catalysts

Ki Won Jun

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Abstract

The conversion of dimethyl ether(DME) has been carried out over $\gamma-alumina$ , silica-alumina, and modified $\gamma-aluminal$ catalysts. Especially, the water effect has been investigated on purpose to develop a suitable catalyst for one-step synthesis of DME from $CO_2$ hydrgenation, The $\gamma-Al_2O_3$ modified with 1 wt% silica is more active and less deactivated by water than unmodified one. $CO_2has$ no effect on catalytic dehydration of methanol to DME.

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The conversion of dimethyl ether(DME) has been carried out over $\gamma-alumina$ , silica-alumina, and modified $\gamma-aluminal$ catalysts. Especially, the water effect has been investigated on purpose to develop a suitable catalyst for one-step synthesis of DME from $CO_2$ hydrgenation, The $\gamma-Al_2O_3$ modified with 1 wt% silica is more active and less deactivated by water than unmodified one. $CO_2has$ no effect on catalytic dehydration of methanol to DME.

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Available abstract

The conversion of dimethyl ether(DME) has been carried out over $\gamma-alumina$ , silica-alumina, and modified $\gamma-aluminal$ catalysts. Especially, the water effect has been investigated on purpose to develop a suitable catalyst for one-step synthesis of DME from $CO_2$ hydrgenation, The $\gamma-Al_2O_3$ modified with 1 wt% silica is more active and less deactivated by water than unmodified one. $CO_2has$ no effect on catalytic dehydration of methanol to DME.

Key concepts: Dimethyl ether, Catalysis, Methanol, Dehydration, Chemistry, Ether, Silica gel, Nuclear chemistry

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