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Patent Agency Ranking
公开(公告)号：US20220177393A1
公开(公告)日：2022-06-09
申请号：US17457731
申请日：2021-12-06
Applicant: ExxonMobil Research and Engineering Company
Inventor： Changyub Paek , Randall D. Partridge , Yogesh V. Joshi , Jayashree Kalyanaraman , Joseph M. Falkowski
Abstract: A method for separating classes of hydrocarbon compounds from a feed stream including a hydrocarbon mixture is disclosed. The method includes the steps of passing a feed stream through a plurality of separation units arranged in a series in any order, wherein each separation unit has an adsorbent material; and separating classes of hydrocarbon compounds from the feed stream. When one of the plurality of separation units comprises an adsorbent material that is a metal organic framework selected from a zirconium, hafnium, cerium, or titanium-based metal organic framework, then another plurality of separation units includes an adsorption material that is different from the metal organic framework. The method is conducted in a liquid phase. The method can also use a single separation unit with a continuous cyclic bed apparatus. The method can be combined with refining and downstream processes.
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公开(公告)号：US10676413B2
公开(公告)日：2020-06-09
申请号：US16365976
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 producing one or more 2,X′-dimethyl biphenyl isomers (where X=2, 3 or 4), 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)toluene. 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 dimethyl biphenyl isomers. The dehydrogenation reaction product is then separated into at least a first stream comprising 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=2, 3 or 4). The at least one second stream is then contacted with a first adsorbent thereby selectively adsorbing one or more 2,X′-dimethyl biphenyl isomers (where X=2, 3 or 4) within said first adsorbent and then withdrawing from said first adsorbent a first extract stream comprising one or more selectively adsorbed 2,X′-dimethyl biphenyl isomers (where X=2, 3 or 4) and a first raffinate stream comprising one or more less selectively adsorbed components.
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公开(公告)号：US20190300457A1
公开(公告)日：2019-10-03
申请号：US16365976
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 producing one or more 2,X′-dimethyl biphenyl isomers (where X=2, 3 or 4), 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)toluene. 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 dimethyl biphenyl isomers. The dehydrogenation reaction product is then separated into at least a first stream comprising 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=2, 3 or 4). The at least one second stream is then contacted with a first adsorbent thereby selectively adsorbing one or more 2,X′-dimethyl biphenyl isomers (where X=2, 3 or 4) within said first adsorbent and then withdrawing from said first adsorbent a first extract stream comprising one or more selectively adsorbed 2,X′-dimethyl biphenyl isomers (where X=2, 3 or 4) and a first raffinate stream comprising one or more less selectively adsorbed components.
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公开(公告)号：US10093597B1
公开(公告)日：2018-10-09
申请号：US15886153
申请日：2018-02-01
Applicant: ExxonMobil Research and Engineering Company
Inventor： Changyub Paek , Michael P. Lanci , Randall D. Partridge , Allen W. Burton , Peter I. Ravikovitch , Sumathy Raman
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 an adsorbent containing a zeolite having a largest diffuse along dimension of at least 4 Angstroms. The adsorbents provide selective adsorption of 4,4′-dimethyl biphenyl.
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15.发明申请公开(公告)号：US20180143168A1
公开(公告)日：2018-05-24
申请号：US15723415
申请日：2017-10-03
Applicant: ExxonMobil Research and Engineering Company
Inventor： Frank Cheng-Yu Wang , Changyub Paek , Kuangnan Qian , Francis X. Kelly
IPC: G01N30/60
CPC classification number: G01N30/6034 , G01N30/463 , G01N30/78 , G01N30/8693 , G01N33/28 , G01N2030/8854
Abstract: Methods to generate a model of composition for a petroleum sample can include providing a petroleum sample to a two-dimensional gas chromatograph coupled with at least one detector. The chromatograph can have first and second columns. The chromatograph can be adapted to output data for each detector representing first and second dimension retention times corresponding to the first and second columns, respectively. The data representing the first and second dimension retention times for each detector based on the petroleum sample can be obtained from the chromatograph. Molecular components of the petroleum sample can be identified based at least in part on the first and second dimension retention times for each detector. The identified molecular components of the petroleum sample can be quantified based at least in part on integrated peaks of the first and second dimension retention times for each detector to generate a model of composition of the petroleum sample.
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