Tessa M Pals

US Patent:

20130217906, Aug 22, 2013

Filed:

Mar 14, 2013

Appl. No.:

13/827153

Inventors:

Tessa M. Pals - Chicago IL, US
Steven A. Cohen - Naperville IL, US
Chander Balakrishnan - Oak Park IL, US
Robert B. Snyder - Naperville IL, US

Assignee:

ELEVANCE RENEWABLE SCIENCES, INC. - WOODRIDGE IL

International Classification:

C10G 3/00
C11C 3/12

US Classification:

554163, 585254, 585271, 585274, 585273

Abstract:

Methods are provided for refining natural oil feedstocks and partially hydrogenating polyunsaturated olefins and polyunsaturated esters. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the polyunsaturated olefins from the polyunsaturated esters in the metathesized product. In certain embodiments, the methods further comprise partially hydrogenating the polyunsaturated olefins in the presence of a hydrogenation catalyst, wherein at least a portion of the polyunsaturated olefins are converted to monounsaturated olefins. In other embodiments, the methods further comprise partially hydrogenating the polyunsaturated esters in the presence of a hydrogenation catalyst, wherein at least a portion of the polyunsaturated esters are converted to monounsaturated esters.

US Patent:

20130204022, Aug 8, 2013

Filed:

Mar 14, 2013

Appl. No.:

13/827798

Inventors:

Steven A. Cohen - Naperville IL, US
Demond L. Gildon - Romeoville IL, US
Leslie V. Beltran - Aurora IL, US
Linda A. Kunz - Naperville IL, US
Tessa M. Pals - Chicago IL, US
Jordan R. Quinn - Mundelein IL, US
Randal J. Bernhardt - Antioch IL, US

Assignee:

ELEVANCE RENEWABLE SCIENCES, INC. - WOODRIDGE IL

International Classification:

C11C 3/14

US Classification:

554125

Abstract:

Methods are provided for refining natural oil feedstocks and producing isomerized esters and acids. The methods comprise providing a C4-C18 unsaturated fatty ester or acid, and isomerizing the fatty acid ester or acid in the presence of heat or an isomerization catalyst to form an isomerized fatty ester or acid. In some embodiments, the methods comprise forming a dibasic ester or dibasic acid prior to the isomerizing step. In certain embodiments, the methods further comprise hydrolyzing the dibasic ester to form a dibasic acid. In certain embodiments, the olefin is formed by reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters, separating the olefins from the esters in the metathesized product, and transesterifying the esters in the presence of an alcohol to form a transesterified product having unsaturated esters.

US Patent:

20150247107, Sep 3, 2015

Filed:

Apr 30, 2015

Appl. No.:

14/700364

Inventors:

- Woodridge IL, US
Robert B. Snyder - Woodridge IL, US
Chander Balakrishnan - Woodridge IL, US
Tessa M. Pals - Woodridge IL, US
Steven A. Cohen - Woodridge IL, US

Assignee:

ELEVANCE RENEWABLE SCIENCES, INC. - Woodridge IL

International Classification:

C11C 3/12
C07C 5/05

Abstract:

Methods are provided for refining natural oil feedstocks and partially hydrogenating polyunsaturated olefins and polyunsaturated esters. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the polyunsaturated olefins from the polyunsaturated esters in the metathesized product. In certain embodiments, the methods further comprise partially hydrogenating the polyunsaturated olefins in the presence of a hydrogenation catalyst, wherein at least a portion of the polyunsaturated olefins are converted to monounsaturated olefins. In other embodiments, the methods further comprise partially hydrogenating the polyunsaturated esters in the presence of a hydrogenation catalyst, wherein at least a portion of the polyunsaturated esters are converted to monounsaturated esters.