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US 4,357,147 AGranted
Diisopropyl ether reversion and oligomerization in isopropanol production
AssigneeChevron Research Company
InventorSusan A. Bezman
Life of this patent
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Abstract
A process for the production of an oxygenated fuel blending composition which contains isopropanol by the hydration of propylene in which the by-product diisopropyl ether is subjected to a reversion reaction and the resulting propylene is oligomerized to form olefinic gasoline.
Claims9
A process for producing an oxygenated fuel blending composition comprising:
- (a) contacting water and a feedstock comprising propylene with a catalyst comprising an acid ion exchange resin in a first reaction zone under hydration conditions to produce a first stream;
- (b) dividing the first stream into a second stream comprising water and isopropanol and a third stream comprising diisopropyl ether;
- (c) contacting the third stream with a reversion catalyst in a second reaction zone under reversion conditions to produce a fourth stream;
- p1 (d) separating propylene from the fourth stream;
- (e) oligomerizing the propylene;
- and
- (f) recovering isopropanol from the second stream and blending it with a gasoline blending hydrocarbon stream.
4 more elements
Dependencies are inferred from the claim text.