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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
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.
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公开(公告)号：US10676412B2
公开(公告)日：2020-06-09
申请号：US16366025
申请日：2019-03-27
Applicant: ExxonMobil Research and Engineering Company
Inventor： Michael P. Lanci , Changyub Paek , Catherine M. Dorsi
Abstract: In a process for separating dimethyl biphenyl isomers a mixture comprising one or more 3,3′, 3,4′- or 4,4′-dimethyl biphenyl isomers, one or more 2,X′-dimethyl biphenyl isomers (where X=2, 3, or 4) and one or more further hydrocarbon components is contacted with a first adsorbent, thereby selectively adsorbing one or more of the dimethyl biphenyl isomers within the first adsorbent. A first raffinate stream containing less selectively adsorbed components is withdrawn from the first adsorbent and a first extract stream containing selectively adsorbed dimethyl biphenyl isomers is withdraw. The selectively adsorbed dimethyl biphenyl isomers comprise one or more of 3,3′-, 3,4′- or 4,4′-dimethyl biphenyl isomers and one or more of 2,X′-dimethyl biphenyl isomers (where X′=2, 3, or 4).
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公开(公告)号：US10138176B2
公开(公告)日：2018-11-27
申请号：US15886408
申请日：2018-02-01
Applicant: ExxonMobil Research and Engineering Company
Inventor： Michael P. Lanci , Changyub Paek , Catherine M. Dorsi
Abstract: In a process for producing one or more 3,3′-, 3,4′- and 4,4′-dimethyl biphenyl isomers, a feed comprising toluene is contacted with hydrogen in the presence of a hydroalkylation catalyst under conditions effective to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluenes. At least part of the hydroalkylation reaction product is dehydrogenated in the presence of a dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising a mixture of dimethyl biphenyl isomers. The dehydrogenation reaction product is then separated into at least a first stream containing one or more 3,3′-, 3,4′- and 4,4′-dimethyl biphenyl isomers and at least one second stream comprising one or more 2,X′-dimethyl biphenyl isomers (where X is 2, 3, or 4). The 3,3′-, 3,4′- and 4,4′-dimethyl biphenyl isomers are then separated utilizing selective adsorption.
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4.发明申请公开(公告)号：US20210269889A1
公开(公告)日：2021-09-02
申请号：US17142799
申请日：2021-01-06
Applicant: ExxonMobil Research and Engineering Company
Inventor： Changyub Paek , Arsam Behkish , Giovanni Pilloni
IPC: C13K1/04 , C01B32/324 , C02F3/28 , B01D15/18
Abstract: The present disclosure relates to methods and systems for converting biomass comprising lignocellulosic material into biofuels and biochemicals that contribute to reduction of greenhouse gas emissions. In particular, the present disclosure relates to methods and systems for the removal or reduction of impurities during lignocellulosic biomass processing to enhance biorefinery production of biofuels and biochemicals.
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5.发明申请公开(公告)号：US20200181664A1
公开(公告)日：2020-06-11
申请号：US16707804
申请日：2019-12-09
Applicant: ExxonMobil Research and Engineering Company
Inventor： Arsam Behkish , C. Rebecca Locker , Giovanni Pilloni , Kelsey M. McNeely , Changyub Paek , Ashish B. Mhadeshwar , Eric B. Shen
Abstract: The present disclosure relates to methods and systems for converting biomass into biofuels and biochemicals. In particular, the present disclosure relates to methods and systems for converting biomass comprising lignocellulosic material into biofuels and biochemicals, such as those comprising fatty acid esters, that contribute to reduction of greenhouse gas emissions.
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Patent Agency Ranking
公开(公告)号：US20170269042A1
公开(公告)日：2017-09-21
申请号：US15450612
申请日：2017-03-06
Applicant: ExxonMobil Research and Engineering Company
Inventor： Changyub Paek , Anthony S. Mennito
CPC classification number: B01D15/361 , B01J41/04 , B01J47/00 , C07C51/47 , C07C2601/08 , C07C2601/14 , C10G29/20 , C10G2300/203 , C07C61/005
Abstract: A process for selective isolation of high molecular weight (˜1230 Daltons) naphthenic acids (Arn acids). The process includes providing a polymeric resin with a bound a quaternary amino group and applying a crude oil sample containing Arn acids to the polymeric resin. A first wash of an organic solvent is applied to the sample followed by a second wash of a polar organic solvent mixture. The first two washes remove unwanted crude oil compositions while the Arn acids are bound to the quaternary amino groups. A third wash of acidified organic solvent removes the Arn acids from the polymeric resin, thereby forming an elute comprising the Arn acids and the acidified organic solvent. The acidified organic solve is then evaporated isolating the Arn acids from the crude oil sample.
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公开(公告)号：US20210017549A1
公开(公告)日：2021-01-21
申请号：US16870916
申请日：2020-05-09
Applicant: ExxonMobil Research and Engineering Company
Inventor： Arsam Behkish , Giovanni Pilloni , Changyub Paek
Abstract: The present disclosure relates to processes for producing hydrocarbon fuels from lignocellulosic biomass. A process may include introducing biomass to a pretreatment system forming a pretreatment effluent and introducing the pretreatment effluent to a hydrolysis system forming a hydrolysate. The hydrolysate may be introduced to a lignin separation system to form a sugar-rich stream and a lignin-rich stream. The sugar-rich stream may be introduced to a purification system comprising at least one toxin converting microorganism or subcellular material to form a purified sugar-rich stream, and the purified sugar-rich stream and one or more sugar converting microorganisms are introduced to a bioreactor configured to produce hydrocarbon fuels. Additionally, the present disclosure also related to systems for production of hydrocarbon fuels including, a pretreatment system, a hydrolysis system, a lignin separation system, a purification system, and at least one bioreactor.
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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
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.
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公开(公告)号：US10550050B2
公开(公告)日：2020-02-04
申请号：US15886199
申请日：2018-02-01
Applicant: ExxonMobil Research and Engineering Company
Inventor： Changyub Paek , Michael P. Lanci , Randall D. Partridge , Allen W. Burton , Carla S. Pereira , Benjamin A. McCool
IPC: C07C2/74 , C07C15/14 , C07C7/13 , B01J20/28 , B01J20/18 , B01D15/08 , C07C2/66 , C07C5/10 , C07C5/27 , C07C5/367
Abstract: In a process for separating one or more 3,3′-, 3,4′- and 4,4′-dimethyl biphenyl isomers, a feed comprising the isomers is contacted with a zeolite adsorbent which contains one or more metal cations in the +1 or +2 oxidation states. Separation processes for each of the 3,3′-, 3,4′- and 4,4′-dimethyl biphenyl isomers is provided.
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公开(公告)号：US20190300456A1
公开(公告)日：2019-10-03
申请号：US16366025
申请日：2019-03-27
Applicant: ExxonMobil Research and Engineering Company
Inventor： Michael P. Lanci , Changyub Paek , Catherine M. Dorsi
Abstract: In a process for separating dimethyl biphenyl isomers a mixture comprising one or more 3,3′, 3,4′- or 4,4′-dimethyl biphenyl isomers, one or more 2,X′-dimethyl biphenyl isomers (where X=2, 3, or 4) and one or more further hydrocarbon components is contacted with a first adsorbent, thereby selectively adsorbing one or more of the dimethyl biphenyl isomers within the first adsorbent. A first raffinate stream containing less selectively adsorbed components is withdrawn from the first adsorbent and a first extract stream containing selectively adsorbed dimethyl biphenyl isomers is withdraw. The selectively adsorbed dimethyl biphenyl isomers comprise one or more of 3,3′-, 3,4′- or 4,4′-dimethyl biphenyl isomers and one or more of 2,X′-dimethyl biphenyl isomers (where X′=2, 3, or 4).
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