公开(公告)号：US10900423B2

公开(公告)日：2021-01-26

申请号：US16173111

申请日：2018-10-29

Applicant: ExxonMobil Research and Engineering Company

Inventor： Randall D. Partridge ,  Benjamin A. McCool ,  Dhaval A. Bhandari

IPC: F02D19/06 ,  F02D41/38 ,  B01D61/02 ,  B01D61/00 ,  B01D69/12 ,  F02D19/12 ,  F02B17/00 ,  F02D41/30 ,  B01D71/02

Abstract: Systems and methods are provided for performing on-board separation of a fuel into a higher octane fuel fraction and a lower octane fuel fraction using a membrane under osmosis conditions. By performing the separation under osmosis conditions, the feed for separation can be exposed to the membrane without requiring prior heating. This can avoid the need for having a separate heat exchanger system for heating the feed to the membrane to a desired temperature range. Additionally or alternately, the permeate from the membrane separation can be at a pressure of roughly 100 kPa-a or higher. This can avoid the need for having an eductor to provide a pressure below 100 kPa-a for the permeate side of the membrane. The fuel fractions produced during the membrane separation can then be used as fuel in a dual-fuel spark ignition engine.

公开(公告)号：US20190105647A1

公开(公告)日：2019-04-11

申请号：US16212922

申请日：2018-12-07

Applicant: ExxonMobil Research and Engineering Company

Inventor： Paul Podsiadlo ,  Quanchang Li ,  David C. Calabro ,  Kiara M. Benitez ,  Machteld M.W. Mertens ,  Scott J. Weigel ,  Doron Levin ,  Randall D. Partridge

IPC: B01J31/26 ,  B01J29/70 ,  C07C5/10 ,  B01J31/12 ,  B01J29/74 ,  B01J29/44 ,  B01J29/40 ,  B01J35/00 ,  C10G47/16 ,  B01J37/00 ,  C10G45/54 ,  C10G45/64

Abstract: Catalysts including at least one microporous material (e.g., zeolite), an organosilica material binder, and at least one catalyst metal are provided herein. Methods of making the catalysts, preferably without surfactants and processes of using the catalysts, e.g., for aromatic hydrogenation, are also provided herein.

公开(公告)号：US20200325406A1

公开(公告)日：2020-10-15

申请号：US16839344

申请日：2020-04-03

Applicant: ExxonMobil Research and Engineering Company

Inventor： Randall D. Partridge ,  Benjamin A. McCool ,  Carla S. Pereira ,  Dhaval A. Bhandari

IPC: C10G67/14 ,  C10G65/12 ,  C10G65/04 ,  B01J19/24 ,  B01J10/00 ,  B01D15/18 ,  B01D61/14

Abstract: A molecular separation method can include: passing a deasphalted oil stream through a reactor containing an active substrate, wherein the catalytic active substrate adsorbs heteroatom species from the deasphalted oil stream and produces a pretreated hydrocarbon feed stream essentially free of 4+ ring aromatic molecules (ARC 4+ species), metal species, and heteroatom species; and chromatographically separating with a simulated moving bed apparatus or a true moving bed apparatus (SMB/TMB) the pretreated hydrocarbon feed stream into a saturate fraction and an aromatics fraction.

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.

公开(公告)号：US10322979B2

公开(公告)日：2019-06-18

申请号：US15886115

申请日：2018-02-01

Applicant: ExxonMobil Research and Engineering Company

Inventor： Benjamin A. McCool ,  Michael P. Lanci ,  Randall D. Partridge ,  Carla S. Pereira

IPC: C07C2/74 ,  B01D15/08 ,  C07C2/66 ,  C07C7/13 ,  C07C15/14 ,  B01J20/28 ,  B01J20/18 ,  C07C5/10 ,  C07C5/27 ,  C07C5/367

Abstract: A process for separating dimethyl biphenyl (DMBP) isomers, including contacting a mixture of 3,3′-DMBP, 3,4′-DMBP and 4,4′-DMBP in a first solvent with a 12-member ring zeolite exchanged with potassium or barium, or combinations thereof, and adsorbing the 3,3′-DMBP onto the 12-member ring zeolite, such as by passing the mixture through at least one packed bed of the potassium and/or barium exchanged 12-member ring zeolite.

公开(公告)号：US20190136734A1

公开(公告)日：2019-05-09

申请号：US16173088

申请日：2018-10-29

Applicant: ExxonMobil Research and Engineering Company

Inventor： Brian M.P. Weiss ,  Shamel Merchant ,  Randall D. Partridge ,  Benjamin A. McCool ,  Ajit B. Dandekar ,  Herbert W. Barry

IPC: F01N3/20

Abstract: Systems and methods are provided for performing selective catalytic reduction on engine exhaust using ethanol from the engine fuel as the reducing agent. Fuel from a fuel tank or other fuel source can be passed through a separation module to produce a fuel stream with a reduced ethanol content and an ethanol-enriched fraction. After combustion of fuel under lean conditions, the combustion exhaust can be exposed to a catalyst system in the presence of the ethanol-enriched fraction.

公开(公告)号：US11325111B2

公开(公告)日：2022-05-10

申请号：US16212922

申请日：2018-12-07

Applicant: ExxonMobil Research and Engineering Company

Inventor： Paul Podsiadlo ,  Quanchang Li ,  David C. Calabro ,  Kiara M. Benitez ,  Machteld M. W. Mertens ,  Scott J. Weigel ,  Doron Levin ,  Randall D. Partridge

IPC: B01J31/00 ,  B01J31/26 ,  B01J29/40 ,  B01J29/44 ,  B01J29/70 ,  B01J29/74 ,  B01J31/12 ,  C07C5/10 ,  B01J35/00 ,  B01J37/00 ,  C10G45/54 ,  C10G45/64 ,  C10G47/16

Abstract: Catalysts including at least one microporous material (e.g., zeolite), an organosilica material binder, and at least one catalyst metal are provided herein. Methods of making the catalysts, preferably without surfactants and processes of using the catalysts, e.g., for aromatic hydrogenation, are also provided herein.

公开(公告)号：US20190390126A1

公开(公告)日：2019-12-26

申请号：US16448117

申请日：2019-06-21

Applicant: ExxonMobil Research and Engineering Company

Inventor： Benjamin A. McCool ,  Yogesh V. Joshi ,  Dhaval A. Bhandari ,  Roberto Garcia ,  Randall D. Partridge

IPC: C10G73/02 ,  B01D69/02 ,  B01D69/14 ,  B01D61/58 ,  B01D3/14 ,  C10G73/06

Abstract: Disclosed are methods and apparatuses for separating a wax product from a hydrocarbon feedstream by a) conducting a hydrocarbon feedstream to a membrane separation zone; b) retrieving at least one retentate product stream from the first side of the membrane element; c) retrieving at least one permeate product stream having a wax phase and an oil phase from a second side of the membrane element, wherein a pour point of the wax phase of the permeate product stream is higher than a pour point of the oil phase of permeate product stream; and d) separating a wax product from the wax phase of the permeate product stream.

公开(公告)号：US11186788B2

公开(公告)日：2021-11-30

申请号：US16448117

申请日：2019-06-21

Applicant: ExxonMobil Research and Engineering Company

Inventor： Benjamin A. McCool ,  Yogesh V. Joshi ,  Dhaval A. Bhandari ,  Roberto Garcia ,  Randall D. Partridge

IPC: C10G73/02 ,  B01D3/14 ,  B01D61/58 ,  B01D69/02 ,  B01D69/14 ,  C10G73/06

Abstract: Disclosed are methods and apparatuses for separating a wax product from a hydrocarbon feedstream by a) conducting a hydrocarbon feedstream to a membrane separation zone; b) retrieving at least one retentate product stream from the first side of the membrane element; c) retrieving at least one permeate product stream having a wax phase and an oil phase from a second side of the membrane element, wherein a pour point of the wax phase of the permeate product stream is higher than a pour point of the oil phase of permeate product stream; and d) separating a wax product from the wax phase of the permeate product stream.

公开(公告)号：US10920636B2

公开(公告)日：2021-02-16

申请号：US16173088

申请日：2018-10-29

Applicant: ExxonMobil Research and Engineering Company

Inventor： Brian M. P. Weiss ,  Shamel Merchant ,  Randall D. Partridge ,  Benjamin A. McCool ,  Ajit B. Dandekar ,  Herbert W. Barry

IPC: F01N3/20 ,  F01N3/035

Abstract: Systems and methods are provided for performing selective catalytic reduction on engine exhaust using ethanol from the engine fuel as the reducing agent. Fuel from a fuel tank or other fuel source can be passed through a separation module to produce a fuel stream with a reduced ethanol content and an ethanol-enriched fraction. After combustion of fuel under lean conditions, the combustion exhaust can be exposed to a catalyst system in the presence of the ethanol-enriched fraction.