Hydrocracking process for biological feedstocks and hydrocarbons produced therefrom
AssigneeSyntroleum Corporation
InventorsRamin Abhari, Lynn Tomlinson, Peter Havlik, Nathan Jannasch
Life of this patent
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Abstract
A process for hydrocracking biomass, and the hydrocarbons produced therefrom. A feed stream having free fatty acids, fatty acid esters, or combinations thereof is contacted with a first catalyst under hydrogen pressure and heat. The hydrocarbon product stream which is comprised predominantly of n-paraffins is separated into heavy and light fractions. The heavy fraction is contacted with a second catalyst under hydrogen pressure and heat to produce an effluent stream which is combined with the light n-paraffin fraction to form a unique middle distillate product useful as a diesel or jet fuel.
Claims8
A process for producing hydrocarbons from biomass, comprising the steps of:
- (a) providing a renewable biological feedstock stream containing free fatty acids, fatty acid esters, or combinations thereof;
- (b) subjecting the feed stream to heat in the presence of hydrogen and a first catalyst to produce hydrocarbons which are predominantly n-paraffins;
- (c) separating the hydrocarbons into a lighter fraction and a heavier fraction;
- (d) hydrocracking the heavier fraction by subjecting the heavier fraction to heat in the presence of a second catalyst to produce lighter paraffins and a middle distillate fraction;
- and
- (e) combining the middle distillate fraction of the hydrocracked products with the lighter n-paraffin fraction to yield a middle distillate fuel.
Dependencies are inferred from the claim text.