E.i. Dupont De Nemours and Company

Invista North America S.a.r.l.

University of Delaware

Dupont US Holding, LLC

Scott Christopher Jackson

Robert Donald Fallon

Leo Ernest Manzer

Albert W Alsop

Mark Andrew Scialdone

Keith Ward Hutchenson

Steven Henry Swearingen

Edwin R Hendrickson

Mayis Seapan

Henry Max Schleinitz

Paul R Resnick

Sharon Jo Keeler

Christian Hoffmann

Linda L Hnatow

Mark Andrew Harmer

Peter Arnold Morken

Ronald James McKinney

Abigail K Luckring

Michael P Perry

Elliott Echt

Gedeon I Deak

George D Robinson

Edward R Murphy

Rupert Spence

John Charles Fisher

Robert DiCosimo

Anna Panova

Paul Raphael Resnick

James L Webster

Sigridur Soley Kristjansdottir

Bhuma Rajagopalan

Richard E Rocheleau

Yamaira Gonzalez

Ronald J Mckinney

David C Confer

James Lang Webster

Disclosed are methods for treating catmint oil. The treated catmint oil can be used for the production of hydrogenated catmint oil, which is enriched in the insect repellent, dihydronepetalactone.

Hydrogenation of catmint oil

Disclosed are methods for treating catmint oil. The process allows the separation of sulfur-containing compounds from the catmint oil. The treated catmint oil can be used for the production of hydrogenated catmint oil, which is enriched in the insect repellent, dihydronepetalactone.

Disclosed are methods for treating catmint oil. The treated catmint oil can be used for the production of hydrogenated catmint oil, which is enriched in the insect repellent, dihydronepetalactone, and from which formulated products may be prepared.

Solvent addition and removal in the hydrogenation of catmint oil

Methods, microorganisms, and compositions are provided wherein oil reservoirs are inoculated with microorganisms belonging toclade 1 and medium including an electron acceptor. Thestrains grow in the oil reservoir to form plugging biofilms that reduce permeability in areas of subterranean formations thereby increasing sweep efficiency, and thereby enhancing oil recovery.

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Methods and compositions are provided wherein microorganisms are used to alter the interface of hydrocarbons and hydrocarbon-coated surfaces to increase oil recovery, for improved bioremediation and/or pipeline maintenance.

Altering the interface of hydrocarbon-coated surfaces

This invention provides a process for producing dihydronepetalactone using mixtures comprising both trans-cis nepetalactone and cis-trans nepetalactone. A reaction mixture comprising trans-cis nepetalactone and cis-trans nepetalactone is first contacted with hydrogen in the presence of at least one hydrogenation catalyst under conditions that optimise the preferential conversion of trans-cis nepetalactone to dihydronepetalactone. Cis-trans nepetalactone is subsequently converted to dihydronepetalactone by contact with hydrogen in the presence of at least one hydrogenation catalyst.

Production of dihydronepetalactone

Methods are provided for treating production fluid in an oil reservoir to reduce the amount of sulfide in the production fluid. The production fluid is treated with nitrate and/or nitrite ions in an aqueous solution that is added to an injection well that is in contact with the production well.

Reducing sulfide in oil reservoir production fluids

A method to improve the effectiveness of MEOR or bioremediation processes. In this method toxic chemicals accumulated in subterranean sites adjacent to the water injection wells are either dispersed or removed prior to introduction of microbial inocula for enhanced microbial oil recovery or bioremediation of these sites.

Method for pre-treatment of subterranean sites adjacent to water injection wells

Growing community of inventors

Wilmington, DE, United States of America

Scott Christopher Jackson