Methods of refining natural oils, and methods of producing fuel compositions

Firth, Bruce E.; Kirk, Sharon E.

Methods of refining natural oils, and methods of producing fuel compositions

Patent · Tue Oct 27 04:00:00 EDT 2015

OSTI ID:1224449

Firth, Bruce E.; Kirk, Sharon E.

A method of refining a natural oil includes: (a) providing a feedstock that includes a natural oil; (b) reacting the feedstock in the presence of a metathesis catalyst to form a metathesized product that includes olefins and esters; (c) passivating residual metathesis catalyst with an agent that comprises nitric acid; (d) separating the olefins in the metathesized product from the esters in the metathesized product; and (e) transesterifying the esters in the presence of an alcohol to form a transesterified product and/or hydrogenating the olefins to form a fully or partially saturated hydrogenated product. Methods for suppressing isomerization of olefin metathesis products produced in a metathesis reaction, and methods of producing fuel compositions are described.

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Research Organization:: Elevance Renewable Sciences, Inc., Woodridge, IL (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: EE0002872

Assignee:: Elevance Renewable Sciences, Inc. (Woodridge, IL)

Patent Number(s):: 9,169,447

Application Number:: 13/335,584

OSTI ID:: 1224449

Country of Publication:: United States

Language:: English

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