Di-isopropyl ether production

Details Di-isopropyl ether production Di-isopropyl ether production

C - Chemistry, Metallurgy

07

C

C07C 43/04 (2006.01) C07C 41/05 (2006.01)

Patent

CA 2156188

A process for the production of diisopropyl ether by conversion of hydrocarbon feedstock containing propene, propane and C2- light gas components, including the steps of: contacting the feedstock and water in a catalytic reactor with acidic catalyst under olefin hydration and etherification conditions; and recovering from the catalytic reactor a liquid reactor effluent stream containing diisopropyl ether, isopropanol, water, unreacted propene, propane and C2 - light gas components. Improved operation is achieved by separating the liquid effluent stream in a vertical stripper column; recovering an overhead vapor stream containing propene, propane and C2 - light gas components from the stripper column; cooling the overhead vapor stream to provide a reflux stream rich in condensed propene and propane; removing the C2 - light gas components from condensed; recycling the reflux stream to an upper contact portion of the stripper column; and recovering a predominantly C3 recycle stream from the upper contact portion of the stripper column.

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