METHOD OF PRODUCING LOWER ALCOHOLS FROM GLYCEROL
First Claim
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1. A process for converting glycerol to acetol with high selectivity, comprising the steps of:
- (a) contacting a glycerol-containing material with a catalyst that is capable of hydrogenating glycerol, in order to form a reaction mixture;
(b) reacting the reaction mixture under a first condition for reaction to dehydrate the glycerol with resultant formation of acetol as a main component of a first reaction product, said first condition including a temperature within a range from 150°
C. to 250°
C. and a pressure within a range from 0.02 bar to 25 bar;
(c) separating the acetol formed in step (b) from other components in the first reaction product;
(d) reacting the separated acetol from step (c) to form a second reaction product.
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Abstract
This invention relates generally to a process for value-added processing of fats and oils to yield glycerol and glycerol derivatives. More particularly, the process converts glycerol to acetol and then acetol to propylene glycol to produce a propylene glycol with ultra-low amounts of ethylene glycol. The propylene glycol thus produced may be used as an antifreeze, deicing compound, or anti-icing compound.
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Citations
25 Claims
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1. A process for converting glycerol to acetol with high selectivity, comprising the steps of:
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(a) contacting a glycerol-containing material with a catalyst that is capable of hydrogenating glycerol, in order to form a reaction mixture; (b) reacting the reaction mixture under a first condition for reaction to dehydrate the glycerol with resultant formation of acetol as a main component of a first reaction product, said first condition including a temperature within a range from 150°
C. to 250°
C. and a pressure within a range from 0.02 bar to 25 bar;(c) separating the acetol formed in step (b) from other components in the first reaction product; (d) reacting the separated acetol from step (c) to form a second reaction product. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification