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US 8,147,766 B2Granted
Selective, integrated processing of bio-derived ester species to yield low molecular weight hydrocarbons and hydrogen for the production of biofuels
AssigneeChevron U.S.A. Inc.
InventorsKerry K. Spilker, Roger Vogel, James F. Stevens, Peter C. Ricci
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Abstract
The present invention relates to methods and systems for processing biomass to selectively yield a variety of hydrocarbon molecules and hydrogen as products, wherein some or all of these products can be further utilized for other biomass processing sub-processes, particularly wherein they lead to the generation of biofuels and/or other high-value products.
Claims10
A system for generating a hybrid diesel fuel product, said system comprising:
- a) an extraction unit for treating a triglyceride-containing biomass so as to yield a triglyceride fraction comprising triglycerides and a non-triglyceride fraction;
- b) a transesterification unit for transesterifying a first portion of the triglycerides in the triglyceride fraction to yield monoesters;
- c) a steam-reforming unit for converting a second portion of the triglycerides in the triglyceride fraction into bio-derived H2;
- d) a hydroprocessing reactor for hydroprocessing at least a portion of the monoesters with H2 to yield one or more hydrocarbon products of a first type, wherein a portion of the H2 so utilized is provided by the bio-derived H2;
- and
- e) a pyrolysis unit operable for pyrolyzing at least a portion of the non-triglyceride fraction to pyrolysis oil, at least a portion of which is hydroprocessed in the hydroprocessing reactor to yield one or more hydrocarbon products of a second type.
3 more elements
Dependencies are inferred from the claim text.