公开(公告)号：US20200165509A1

公开(公告)日：2020-05-28

申请号：US16672152

申请日：2019-11-01

Applicant: ExxonMobil Research and Engineering Company

Inventor： Xiaozhou Zhang ,  Dennis R. Enning ,  Meytal B. Higgins ,  Jaspreet Mand ,  Fang Cao ,  Giovanni Pilloni ,  Mohor Chatterjee

IPC: C09K8/54 ,  C09K8/536

Abstract: Provided are methods for diagnosing, monitoring and mitigating microbiologically influenced corrosion (MIC). The methods employ steps to determine the nature and concentration of biological signatures, formed through metabolism of microorganisms, and correlating the biological signatures with MIC. Based on such analyses, appropriate MIC mitigation strategies may be implemented so as to efficiently target MIC at sites of interest. The methods advantageously allow selection of appropriate MIC mitigation treatments that correspond to the level of severity of the MIC and based on historical data correlating particular biological signatures with particular MIC risk.

公开(公告)号：US20200147545A1

公开(公告)日：2020-05-14

申请号：US16660029

申请日：2019-10-22

Applicant: ExxonMobil Research and Engineering Company

Inventor： Mohsen S. Yeganeh ,  Pavel Kortunov ,  P. Scott Northrop ,  Xiaozhou Zhang ,  Giovanni Pilloni ,  Ning Ma ,  Robert J. Colby ,  Qiuzi Li ,  Zarath M. Summers ,  Matthew S. Ide

IPC: B01D53/14 ,  B01D67/00 ,  B01D53/22 ,  B01D69/14

Abstract: The present disclosure relates to a porous liquid or a porous liquid enzyme that includes a high surface area solid and a liquid film substantially covering the high surface area solid. The porous liquid or porous liquid enzyme may be contacted with a fluid that is immiscible with the liquid film such that a liquid-fluid interface is formed. The liquid film may facilitate mass transfer of a substance or substrate across the liquid-fluid interface. The present disclosure also provides methods of performing liquid-based extractions and enzymatic reactions utilizing the porous liquid or porous liquid enzyme of the present disclosure.

公开(公告)号：US10995352B2

公开(公告)日：2021-05-04

申请号：US16870910

申请日：2020-05-09

Applicant: ExxonMobil Research and Engineering Company

Inventor： Partha Nandi ,  Xiaozhou Zhang ,  Mohor Chatterjee ,  Vera Grankina ,  Changyub Paek ,  Fang Cao

IPC: C12P19/12 ,  C12P7/06 ,  C12N1/16 ,  C12P5/02 ,  C12P7/16

Abstract: The present disclosure relates to glycolipid compositions, methods for making glycolipid compositions, and their uses thereof. Glycolipid compositions can be prepared via yeast-mediated catalyzed reaction, and exhibit excellent surfactant properties having high corrosion inhibition performance, good reducing surface tension efficiency. Processes of the present disclosure can provide glycolipid compositions having one or more of: a ratio of lactonic glycolipids to glycolipid acylic esters is from about 1:10 to about 10:1, a molecular weight of from about 400 g/mol to about 10,000 g/mol, a corrosion rate of carbon steel from about 0.5 MPY to about 100 MPY at room temperature and at pH 4-6. Furthermore, aqueous solutions of the glycolipid compositions of the present disclosure can have a surface tension of from about 20 mN/m to about 80 mN/m.

公开(公告)号：US20210108235A1

公开(公告)日：2021-04-15

申请号：US17068147

申请日：2020-10-12

Applicant: ExxonMobil Research and Engineering Company

Inventor： Xiaozhou Zhang ,  Zarath M Summers ,  Partha Nandi ,  Mark P Hagemeister ,  Jihad M Dakka ,  Mohor Chatterjee ,  Vera Grankina

IPC: C12P7/42 ,  C07C51/377 ,  C12P19/02 ,  C12P19/14 ,  C13K1/00

Abstract: Hydroxycarboxylic acids may be biosynthesized from a carbonaceous feedstock and then isolated through forming and subsequently hydrolyzing an intermediate sophorolipid. After biosynthesizing a hydroxycarboxylic acid in a cell culture medium or otherwise providing a hydroxycarboxylic acid in a first aqueous medium, the hydroxycarboxylic acid and glucose may be converted into at least one sophorolipid by a suitable microorganism or an enzyme cocktail. The at least one sophorolipid may be then be separated from the cell culture medium or first aqueous medium and then hydrolyzed in a second aqueous medium to form the hydroxycarboxylic acid and glucose as free components separate from the cell culture medium or first aqueous medium. The hydroxycarboxylic acid is present as a phase separate from the second aqueous medium and the glucose remains in the second aqueous medium.

公开(公告)号：US20200377916A1

公开(公告)日：2020-12-03

申请号：US16870910

申请日：2020-05-09

Applicant: ExxonMobil Research and Engineering Company

Inventor： Partha Nandi ,  Xiaozhou Zhang ,  Mohor Chatterjee ,  Vera Grankina ,  Changyub Paek ,  Fang Cao

IPC: C12P19/12 ,  C12P7/06 ,  C12P7/16 ,  C12P5/02 ,  C12N1/16

Abstract: The present disclosure relates to glycolipid compositions, methods for making glycolipid compositions, and their uses thereof. Glycolipid compositions can be prepared via yeast-mediated catalyzed reaction, and exhibit excellent surfactant properties having high corrosion inhibition performance, good reducing surface tension efficiency. Processes of the present disclosure can provide glycolipid compositions having one or more of: a ratio of lactonic glycolipids to glycolipid acylic esters is from about 1:10 to about 10:1, a molecular weight of from about 400 g/mol to about 10,000 g/mol, a corrosion rate of carbon steel from about 0.5 MPY to about 100 MPY at room temperature and at pH 4-6. Furthermore, aqueous solutions of the glycolipid compositions of the present disclosure can have a surface tension of from about 20 mN/m to about 80 mN/m.