Method for preparing alcohols from olefin

A technology of olefins and acetates, applied in chemical instruments and methods, preparation of hydroxyl compounds, preparation of organic compounds, etc., can solve the problems of high reaction pressure, low single-pass conversion rate, low reaction conversion rate, etc., and achieve mild reaction conditions , High raw material conversion rate, good product selectivity
CN102146019AActive Publication Date: 2011-08-10HUNAN CHANGLING PETROCHEM SCI & TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN CHANGLING PETROCHEM SCI & TECH DEV CO LTD
Publication Date
2011-08-10

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Abstract

The invention discloses a method for preparing alcohols from olefin. The method comprises an esterification process and a hydrogenation process. The method comprises the following steps of: performing countercurrent contact on olefin and acetic acid in a catalytic distillation tower on the surface of a solid acid catalyst, and synthesizing corresponding acetic ester by catalytic esterification; and then catalytically converting the acetic ester and hydrogen into corresponding alcohols in a fixed bed reactor by using the synthesized acetic ester as a raw material under a copper-containing hydrogenation catalyst and reaction conditions. The method has the characteristics of simple process flow, mild reaction conditions, low energy consumption, high raw material conversion rate and good production selectivity. Moreover, the method for preparing the corresponding alcohols from the olefin can be also used for preparing acetic ester and ethanol products which are wide in application.
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Description

technical field

[0001] The invention belongs to the technical field of chemical industry, in particular to a method for preparing alcohol from olefins. Background technique

[0002] Alcohol has many uses, and can be used as clean gasoline additives, liquid fuels and oil substitutes, and raw materials for bulk chemical production. In addition, higher alcohols can also be used as surfactants, demulsifiers, dye dispersants, dehydrating agents, paint removers, industrial detergents, etc.; they can also be used as plasticizers, oil extractants, wetting agents, fragrances, etc. The manufacture has great economic value.

[0003] The well-known and industrially commonly used routes for synthesizing alcohols are mainly olefin hydration and olefin carbonylation hydrogenation. Olefin hydration method to prepare the corresponding alcohol has high reaction pressure, low single-pass conversion rate and high water-ene ratio, so the equipment investment is large and the separation energy ...

Claims

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