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US 7,098,368 B2Granted
Hydrogenation of biochemical derived 1,3 -propanediol
AssigneeE. I. Du Pont de Nemours and Company
InventorsMayis Seapan, George F. Diffendall, Robert E. Trotter, Tyler T. Ames, F. Glenn Gallagher
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Abstract
The invention discloses a hydrogenation process for removing impurities and controlling acid for use in downstream processing of biochemically-derived 1,3-propanediol. Preferably, the biochemically-derived 1,3-propanediol, before the contacting, has an initial color and, after the contracting, has a color that is lower than the initial color.
Claims31
A process comprising contacting a mixture comprising organics and biochemically-derived 1,3-propanediol with hydrogen in the presence of a hydrogenation catalyst.
A composition comprising:
- (i) biochemically-derived 1,3-propanediol having color and (ii) hydrogenation catalyst, wherein the biochemically-derived 1,3-propanediol has a APHA color of less than about 10.
Dependencies are inferred from the claim text.