Composition and methods for improved fuel production

摘要

Certain embodiments of the present invention are configured to produce boiler and transportation fuels. A first phase of the method may include oxidation and/or hyper-acidification of bio-oil to produce an intermediate product. A second phase of the method may include catalytic deoxygenation, esterification, or olefination/esterification of the intermediate product under pressurized syngas. The composition of the resulting product—e.g., a boiler fuel—produced by these methods may be used directly or further upgraded to a transportation fuel. Certain embodiments of the present invention also include catalytic compositions configured for use in the method embodiments.

主权项

1. A method for producing an improved fuel product, comprising the steps of:
obtaining a bio-oil generated from processing biomass;performing a first phase of pretreatment on the bio-oil, wherein the first phase includes at least an acid anhydride step configured to convert water to carboxylic acids thus increasing product acidity and reducing water content in the bio-oil, and wherein an output of the first phase of pretreatment is a hyper-acidified intermediate product;
implementing a second phase of treatment on the hyper-acidified intermediate product, wherein the second phase of treatment includes one or more steps selected from the group of:
a. a partial deoxygenation step,b. a full deoxygenation stepc. a decarboxylation step,d. an esterification step,e. an olefination/esterification step, andf. a hydroprocessing step;which are configured to improve fuel yield and energy density in a final fuel product.