DIRECT CONVERSION OF BIOMASS OXYGENATES TO HYDROCARBONS
First Claim
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1. A process for producing longer carbon chain hydrocarbon products from shorter carbon chain oxygenate material, wherein the process comprises:
- contacting hydrogen and the oxygenate material with a hydrocondensation catalyst which catalyzes the formation of carbon-carbon bonds in the presence of hydrogen to form longer chain hydrocarbon products.
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Abstract
A single pass direct conversion of biomass derived oxygenates to longer chain hydrocarbons is described. The longer chain hydrocarbons include higher naphthene content which is quite useful in the distillate range fuels or more particularly, the jet and diesel range fuels. Naphthenes help the biomass derived hydrocarbons meet product specifications for jet and diesel while really helping cold flow properties.
13 Citations
20 Claims
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1. A process for producing longer carbon chain hydrocarbon products from shorter carbon chain oxygenate material, wherein the process comprises:
contacting hydrogen and the oxygenate material with a hydrocondensation catalyst which catalyzes the formation of carbon-carbon bonds in the presence of hydrogen to form longer chain hydrocarbon products. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system to convert biomass oxygenates to renewable C5-C25 hydrocarbons comprising:
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a. an oxygenate feedstock derived at least in part from biomass and comprising one or more polyols, sugars, or carbohydrates in an aqueous solution; b. a hydrogen feed; c. a hydrocondensation reactor including a hydrocondensation catalyst for converting the oxygenate feedstock into longer chain hydrocarbons; and d. a distillation column for separating the renewable hydrocarbons into product streams comprising C5-C25 range hydrocarbons comprising renewable naphtha, renewable gas oil, and at least one distillate range renewable fuel. - View Dependent Claims (19, 20)
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Specification