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11.发明申请公开(公告)号：US20220025282A1
公开(公告)日：2022-01-27
申请号：US17364989
申请日：2021-07-01
Applicant: ExxonMobil Research and Engineering Company
Inventor： Xiaochun Xu , Xinrui Yu , Shifang Luo , Randolph J. Smiley , Joseph E. Gatt
Abstract: Methods of refining a whole crude oil stream. The methods involve first processing the crude either through a hydrotreating reactor comprising a dewaxing reactor bed or a flash evaporation separator. The treated streams are then further processed through a demetalization reactor bed, a hydroprocessing reactor bed, or both. The stream can then be still further processed via additional hydrotreating, distillation, or both.
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公开(公告)号：US20220010219A1
公开(公告)日：2022-01-13
申请号：US16946823
申请日：2020-07-08
Applicant: ExxonMobil Research and Engineering Company
Inventor： Chengrong Wang , Anding Zhang , Xiaochun Xu , Samuel J. Cady , Shifang Luo , Michael H. Ring , Maria Vanessa C. Aguinaldo , John Della Mora , Kegun L. Ream
Abstract: Disclose is an online analyzer to monitor conversion of a biofeedstock in a first hydrotreating stage to avoid catalyst poisoning in a subsequent stage. An example method of processing a biofeedstock may comprise hydrotreating the biofeedstock by reaction with hydrogen to form a hydrotreated biofeedstock. The method may further comprise monitoring conversion of the biofeedstock in the hydrotreating with an online analyzer.
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公开(公告)号：US20210363444A1
公开(公告)日：2021-11-25
申请号：US17325889
申请日：2021-05-20
Applicant: ExxonMobil Research and Engineering Company
Inventor： Kenneth C.H. Kar , Sheryl B. Rubin-Pitel , Shifang Luo , Randolph J. Smiley , Lisa M. Guay
Abstract: Hydroprocessed residual fuel and/or fuel blending components are provided that have a sulfur and nitrogen level comparable to liquefied natural gas (LNG). Because of the low starting level of sulfur and/or nitrogen, the severity of the hydroprocessing that is needed for the crude oil or bottoms fraction in order to remove sulfur to a level that is comparable to LNG is reduced or minimized. This can allow the resulting marine residual fuels to have low carbon intensity, low SOx and NOx emission and high energy density. Since the hydroprocessed fractions correspond to a fuel oil product, the resulting marine fuel can be used in existing fleets, and can be distributed in existing bunkering systems.
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公开(公告)号：US11118120B2
公开(公告)日：2021-09-14
申请号：US16707667
申请日：2019-12-09
Applicant: ExxonMobil Research and Engineering Company
Inventor： Stephen H. Brown , Samia Ilias , Randolph J. Smiley , Richard Demmin , Shifang Luo , Brenda A. Raich , Aldrin G. Cuevas , Keith Wilson , Jesse R. McManus , Lei Zhang
Abstract: A method of upgrading refining streams with high polynucleararomatic hydrocarbon (PNA) concentrations can include: hydrocracking a PNA feed in the presence of a catalyst and hydrogen at 380° C. to 430° C., 2500 psig or greater, and 0.1 hr−1 to 5 hr−1 liquid hourly space velocity (LSHV), wherein the weight ratio of PNA feed to hydrogen is 30:1 to 10:1, wherein the PNA feed comprises 25 wt % or less of hydrocarbons having a boiling point of 700° F. (371° C.) or less and having an aromatic content of 50 wt % or greater to form a product comprising 50 wt % or greater of the hydrocarbons having a boiling point of 700° F. (371° C.) or less and having an aromatic content of 20 wt % or less.
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Patent Agency Ranking
公开(公告)号：US20200063044A1
公开(公告)日：2020-02-27
申请号：US16541553
申请日：2019-08-15
Applicant: ExxonMobil Research and Engineering Company
Inventor： Suzzy C. Ho , Guang Cao , Matthew S. Ide , Shifang Luo , William R. Gunther , Jo Ann M. Canich
Abstract: Systems and a method for manufacturing a base stock from a hydrocarbon stream are provided. An example method includes cracking the hydrocarbon stream to form a raw hydrocarbon stream, separating an ethylene stream from the raw hydrocarbon stream and oligomerizing the ethylene stream to form a raw oligomer stream. A light olefinic stream is distilled from the raw oligomer stream and linear alpha olefins are recovered from the light olefinic stream. A heavy olefinic stream is distilled from the raw oligomer stream. The heavy olefinic stream is hydro-processed to form a hydro-processed stream. The hydro-processed stream is distilled to form the base stock.
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公开(公告)号：US20210363450A1
公开(公告)日：2021-11-25
申请号：US17325965
申请日：2021-05-20
Applicant: ExxonMobil Research and Engineering Company
Inventor： Matthew H. Lindner , Scott K. Berkhous , Mike T. Noorman , Gregory K. Lilik , Shifang Luo , Ian J. Laurenzi , Jasmina Poturovic
Abstract: Naphtha boiling range compositions are provided that are formed from crude oils with unexpected combinations of high naphthenes to aromatics weight and/or volume ratio and a low sulfur content. The resulting naphtha boiling range fractions can have a high naphthenes to aromatics weight ratio, a low but substantial content of aromatics, and a low sulfur content. In some aspects, the fractions can be used as fuels and/or fuel blending products after fractionation with minimal further refinery processing. In other aspects, the amount of additional refinery processing, such as hydrotreatment, catalytic reforming and/or isomerization, can be reduced or minimized. By reducing, minimizing, or avoiding the amount of hydroprocessing needed to meet fuel and/or fuel blending product specifications, the fractions derived from the high naphthenes to aromatics ratio and low sulfur crudes can provide fuels and/or fuel blending products having a reduced or minimized carbon intensity.
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公开(公告)号：US20210363447A1
公开(公告)日：2021-11-25
申请号：US17126204
申请日：2020-12-18
Applicant: ExxonMobil Research and Engineering Company
Inventor： Kenneth C.H. Kar , Sheryl B. Rubin-Pitel , Lisa M. Guay , Timothy J. Anderson , Shifang Luo , Marcia E. Dierolf
Abstract: Marine diesel fuel/fuel blending component compositions and fuel oil/fuel blending component compositions are provided that are derived from crude oils having high naphthenes to aromatics volume and/or weight ratios and a low sulfur content. In addition to having a high naphthenes to aromatics ratio, a low sulfur content, and a low but substantial content of aromatics, such fuels and/or fuel blending components can have a reduced or minimized carbon intensity relative to fuels derived from conventional sources. The unexpected ratio of naphthenes to aromatics contributes to the fuels and/or fuel blending components further having additional unexpected properties, including low density, low kinematic viscosity, and/or high energy density.
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公开(公告)号：US10899983B1
公开(公告)日：2021-01-26
申请号：US16881293
申请日：2020-05-22
Applicant: ExxonMobil Research and Engineering Company
Inventor： Kenneth C. H. Kar , Sheryl B. Rubin-Pitel , Lisa M. Guay , Timothy J. Anderson , Shifang Luo , Marcia E. Dierolf
Abstract: Marine diesel fuel/fuel blending component compositions and fuel oil/fuel blending component compositions are provided that are derived from crude oils having high naphthenes to aromatics volume and/or weight ratios and a low sulfur content. In addition to having a high naphthenes to aromatics ratio, a low sulfur content, and a low but substantial content of aromatics, such fuels and/or fuel blending components can have a reduced or minimized carbon intensity relative to fuels derived from conventional sources. The unexpected ratio of naphthenes to aromatics contributes to the fuels and/or fuel blending components further having additional unexpected properties, including low density, low kinematic viscosity, and/or high energy density.
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公开(公告)号：US10858599B2
公开(公告)日：2020-12-08
申请号：US16541553
申请日：2019-08-15
Applicant: ExxonMobil Research and Engineering Company
Inventor： Suzzy C. Ho , Guang Cao , Matthew S. Ide , Shifang Luo , William R. Gunther , Jo Ann M. Canich
Abstract: Systems and a method for manufacturing a base stock from a hydrocarbon stream are provided. An example method includes cracking the hydrocarbon stream to form a raw hydrocarbon stream, separating an ethylene stream from the raw hydrocarbon stream and oligomerizing the ethylene stream to form a raw oligomer stream. A light olefinic stream is distilled from the raw oligomer stream and linear alpha olefins are recovered from the light olefinic stream. A heavy olefinic stream is distilled from the raw oligomer stream. The heavy olefinic stream is hydro-processed to form a hydro-processed stream. The hydro-processed stream is distilled to form the base stock.
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