Methods and systems for generating polyols
First Claim
1. A method of generating a reaction product comprising a mixture of an alcohol and a ketone from a biomass-derived oxygenated hydrocarbon, the method comprising:
- catalytically reacting an aqueous feedstock solution comprising water and at least one biomass-derived, water-soluble oxygenated hydrocarbon having two or more carbon atoms with hydrogen in the presence of a catalytic material at a temperature and a pressure to produce a reaction product comprising a mixture of an alcohol and a ketone;
wherein the catalytic material comprises;
(a) platinum, palladium, iron, ruthenium, rhenium, copper, rhodium, cobalt, nickel, iridium, an alloy of at least two of the foregoing, or a mixture of at least two of the foregoing;
or(b) a bi-functional catalyst selected from the group consisting of tungstated zirconia, titania zirconia, sulfated zirconia, acidic alumina, silica-alumina, a heteropolyacid, and combinations thereof.
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Accused Products
Abstract
Disclosed are methods for generating propylene glycol, ethylene glycol and other polyols, diols, ketones, aldehydes, carboxylic acids and alcohols from biomass using hydrogen produced from the biomass. The methods involve reacting a portion of an aqueous stream of a biomass feedstock solution over a catalyst under aqueous phase reforming conditions to produce hydrogen, and then reacting the hydrogen and the aqueous feedstock solution over a catalyst to produce propylene glycol, ethylene glycol and the other polyols, diols, ketones, aldehydes, carboxylic acids and alcohols. The disclosed methods can be run at lower temperatures and pressures, and allows for the production of oxygenated hydrocarbons without the need for hydrogen from an external source.
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Citations
13 Claims
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1. A method of generating a reaction product comprising a mixture of an alcohol and a ketone from a biomass-derived oxygenated hydrocarbon, the method comprising:
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catalytically reacting an aqueous feedstock solution comprising water and at least one biomass-derived, water-soluble oxygenated hydrocarbon having two or more carbon atoms with hydrogen in the presence of a catalytic material at a temperature and a pressure to produce a reaction product comprising a mixture of an alcohol and a ketone; wherein the catalytic material comprises; (a) platinum, palladium, iron, ruthenium, rhenium, copper, rhodium, cobalt, nickel, iridium, an alloy of at least two of the foregoing, or a mixture of at least two of the foregoing;
or(b) a bi-functional catalyst selected from the group consisting of tungstated zirconia, titania zirconia, sulfated zirconia, acidic alumina, silica-alumina, a heteropolyacid, and combinations thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification