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公开(公告)号：US20210189252A1
公开(公告)日：2021-06-24
申请号：US17131850
申请日：2020-12-23
Applicant: Chevron U.S.A. Inc.
Inventor： Hye-Kyung Timken
IPC: C10G1/10 , C10G1/00 , C07C4/04 , C10G45/58 , C08F10/02 , C10M177/00 , C10M105/04 , C10B53/07
Abstract: Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization. In one embodiment, the process comprises selecting waste plastics containing polyethylene and/or polypropylene and passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a naphtha/diesel fraction, a heavy fraction, and char. The naphtha/diesel fraction is passed to a crude unit distillation column in a refinery where a straight run naphtha (C5-C8) fraction or a propane/butane (C3-C4) fraction is recovered. The straight run naphtha fraction (C5-C8) or the propane/butane (C3-C4) fraction is passed to a steam cracker for ethylene production. The heavy fraction from the pyrolysis unit can also be passed to an isomerization dewaxing unit to produce a base oil.
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32.发明申请公开(公告)号：US20210189250A1
公开(公告)日：2021-06-24
申请号：US17131839
申请日：2020-12-23
Applicant: Chevron U.S.A. Inc.
Inventor： Hye-Kyung Timken
Abstract: Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization or for normal alpha olefins. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and then passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a naphtha/diesel fraction, a heavy fraction, and char. The naphtha/diesel fraction is passed to a crude unit in a refinery from which is recovered a straight run naphtha fraction (C5-C8) or a propane/butane (C3-C4) fraction. The straight run naphtha fraction, or propane and butane (C3-C4) fraction, is passed to a steam cracker for ethylene production. The ethylene is converted to normal alpha olefin and/or polyethylene. Also, a heavy fraction from the pyrolysis reactor can be combined with a heavy fraction of normal alpha olefin stream recovered from the steam cracker. The combined heavy fraction and heavy fraction of normal alpha olefin stream can be passed to a wax hydrogenation zone to produce wax.
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33.发明申请公开(公告)号：US20210189249A1
公开(公告)日：2021-06-24
申请号：US17131877
申请日：2020-12-23
Applicant: Chevron U.S.A. Inc.
Inventor： Hye-Kyung Timken
Abstract: Provided is a continuous process for converting waste plastic into recycle for polypropylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a naphtha/diesel fraction, a heavy fraction, and char. Pyrolysis oil and wax, comprising the naphtha/diesel fraction and heavy fraction, is sent to a refinery FCC unit. A liquid petroleum gas C3-C5 olefin/paraffin mixture is recovered from the FCC unit and passed to a refinery alkylation unit. A propane fraction is recovered from the alkylation unit and passed to a dehydrogenation unit to produce propylene. The propylene is passed to a propylene polymerization reactor.
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公开(公告)号：US09238193B2
公开(公告)日：2016-01-19
申请号：US13948861
申请日：2013-07-23
Applicant: Chevron Phillips Chemical Company LP , Chevron U.S.A. Inc.
Inventor： Lei Ji , Ai-Fu Chang , Michael S. Driver , Hye-Kyung Timken
IPC: B01D53/78 , B01D53/62 , B01D53/52 , B01D53/72 , C07C7/00 , B01D53/14 , C01B31/20 , C01B17/16 , C07C7/11 , C07C7/144 , C07C7/152 , C07C7/156 , B01D53/22
CPC classification number: C07C7/11 , B01D53/14 , B01D53/1462 , B01D53/1468 , B01D53/1475 , B01D53/1487 , B01D53/1493 , B01D53/229 , B01D53/52 , B01D53/526 , B01D53/62 , B01D53/72 , B01D53/78 , B01D2252/20426 , B01D2252/20473 , B01D2252/30 , B01D2256/22 , B01D2256/24 , B01D2257/304 , B01D2257/504 , B01D2257/7022 , C01B17/167 , C01B31/20 , C01B32/50 , C07C7/005 , C07C7/144 , C07C7/152 , C07C7/156 , Y02P20/152 , Y02P20/542 , C07C9/12 , C07C11/04
Abstract: Disclosed are systems and methods which provide a process stream comprising a gaseous component, capture the gaseous component from the process stream by an ionic liquid solvent of a separator, and recover a captured gaseous component from the ionic liquid solvent in a regenerator. A second gaseous component from the process stream may be captured by the ionic liquid solvent of the separator, and the second gaseous component may be recovered from the ionic liquid solvent in the regenerator. Alternatively, the second gaseous component from the process stream may be uncaptured by the ionic liquid solvent, and the uncaptured second gaseous component may be recovered from a membrane unit.
Abstract translation: 公开了提供包含气体组分的工艺流体的系统和方法，通过分离器的离子液体溶剂从工艺流捕获气态组分，并在再生器中从离子液体溶剂回收捕获的气态组分。 来自工艺物流的第二气态组分可以由分离器的离子液体溶剂捕获，并且第二气体组分可以从再生器中的离子液体溶剂中回收。 或者，来自工艺流的第二气态组分可以由离子液体溶剂未捕获，并且未捕获的第二气态组分可以从膜单元回收。
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公开(公告)号：US20150030524A1
公开(公告)日：2015-01-29
申请号：US13948861
申请日：2013-07-23
Applicant: Chevron Phillips Chemical Company LP , Chevron U.S.A. Inc.
Inventor： Lei JI , Ai-Fu CHANG , Michael S. Driver , Hye-Kyung Timken
CPC classification number: C07C7/11 , B01D53/14 , B01D53/1462 , B01D53/1468 , B01D53/1475 , B01D53/1487 , B01D53/1493 , B01D53/229 , B01D53/52 , B01D53/526 , B01D53/62 , B01D53/72 , B01D53/78 , B01D2252/20426 , B01D2252/20473 , B01D2252/30 , B01D2256/22 , B01D2256/24 , B01D2257/304 , B01D2257/504 , B01D2257/7022 , C01B17/167 , C01B31/20 , C01B32/50 , C07C7/005 , C07C7/144 , C07C7/152 , C07C7/156 , Y02P20/152 , Y02P20/542 , C07C9/12 , C07C11/04
Abstract: Disclosed are systems and methods which provide a process stream comprising a gaseous component, capture the gaseous component from the process stream by an ionic liquid solvent of a separator, and recover a captured gaseous component from the ionic liquid solvent in a regenerator. A second gaseous component from the process stream may be captured by the ionic liquid solvent of the separator, and the second gaseous component may be recovered from the ionic liquid solvent in the regenerator. Alternatively, the second gaseous component from the process stream may be uncaptured by the ionic liquid solvent, and the uncaptured second gaseous component may be recovered from a membrane unit.
Abstract translation: 公开了提供包含气体组分的工艺流体的系统和方法，通过分离器的离子液体溶剂从工艺流捕获气态组分，并在再生器中从离子液体溶剂回收捕获的气态组分。 来自工艺物流的第二气态组分可以由分离器的离子液体溶剂捕获，并且第二气体组分可以从再生器中的离子液体溶剂中回收。 或者，来自工艺流的第二气态组分可以由离子液体溶剂未捕获，并且未捕获的第二气态组分可以从膜单元回收。
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Patent Agency Ranking
36.发明授权公开(公告)号：US11939527B1
公开(公告)日：2024-03-26
申请号：US18051003
申请日：2022-10-30
Applicant: Chevron U.S.A. Inc.
Inventor： Hye-Kyung Timken , Cameron McCord
CPC classification number: C10B53/07 , C10G9/36 , C10G51/023 , C10G57/02 , C10G73/02 , C10G2300/1003 , C10G2400/04 , C10G2400/06 , C10G2400/20
Abstract: Provided in one embodiment is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene, and passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a pyrolysis oil and optionally pyrolysis wax comprising a naphtha/diesel fraction and heavy fraction, and char. The pyrolysis oil and wax is passed to a refinery FCC feed pretreater unit. A heavy fraction is recovered and sent to a refinery FCC unit, from which a C3 olefin/paraffin mixture fraction is recovered, which is passed to a steam cracker for ethylene production. In another embodiment, a propane fraction (C3) is recovered from a propane/propylene splitter and passed to the steam cracker.
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37.发明公开公开(公告)号：US20240076555A1
公开(公告)日：2024-03-07
申请号：US18051003
申请日：2022-10-30
Applicant: Chevron U.S.A. Inc.
Inventor： Hye-Kyung Timken , Cameron McCord
CPC classification number: C10B53/07 , C10G9/36 , C10G51/023 , C10G57/02 , C10G73/02 , C10G2300/1003 , C10G2400/04 , C10G2400/06 , C10G2400/20
Abstract: Provided in one embodiment is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene, and passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a pyrolysis oil and optionally pyrolysis wax comprising a naphtha/diesel fraction and heavy fraction, and char. The pyrolysis oil and wax is passed to a refinery FCC feed pretreater unit. A heavy fraction is recovered and sent to a refinery FCC unit, from which a C3 olefin/paraffin mixture fraction is recovered, which is passed to a steam cracker for ethylene production. In another embodiment, a propane fraction (C3) is recovered from a propane/propylene splitter and passed to the steam cracker.
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38.发明授权公开(公告)号：US11732197B2
公开(公告)日：2023-08-22
申请号：US18051000
申请日：2022-10-30
Applicant: Chevron U.S.A. Inc.
Inventor： Hye-Kyung Timken
CPC classification number: C10G1/10 , C07C2/30 , C07C4/04 , C08F10/02 , C10B53/07 , C10G1/002 , C10G73/02 , C10G2300/1003 , C10G2300/202 , C10G2300/205 , C10G2300/4006 , C10G2300/4012 , C10G2300/4018 , C10G2400/02 , C10G2400/04 , C10G2400/08 , C10G2400/22
Abstract: Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization or for normal alpha olefins. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and then passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a naphtha/diesel fraction, a heavy fraction, and char. The naphtha/diesel fraction is passed to a crude unit in a refinery from which is recovered a straight run naphtha fraction (C5-C8) or a propane/butane (C3-C4) fraction. The straight run naphtha fraction, or propane and butane (C3-C4) fraction, is passed to a steam cracker for ethylene production. The ethylene is converted to normal alpha olefin and/or polyethylene. Also, a heavy fraction from the pyrolysis reactor can be combined with a heavy fraction of normal alpha olefin stream recovered from the steam cracker. The combined heavy fraction and heavy fraction of normal alpha olefin stream can be passed to a wax hydrogenation zone to produce wax.
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公开(公告)号：US11473016B2
公开(公告)日：2022-10-18
申请号：US17131850
申请日：2020-12-23
Applicant: Chevron U.S.A. Inc.
Inventor： Hye-Kyung Timken
IPC: C10G1/10 , C07C4/04 , C10G45/58 , C08F10/02 , C10M177/00 , C10M105/04 , C10B53/07 , C10G1/00 , C10N70/00
Abstract: Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization. In one embodiment, the process comprises selecting waste plastics containing polyethylene and/or polypropylene and passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a naphtha/diesel fraction, a heavy fraction, and char. The naphtha/diesel fraction is passed to a crude unit distillation column in a refinery where a straight run naphtha (C5-C8) fraction or a propane/butane (C3-C4) fraction is recovered. The straight run naphtha fraction (C5-C8) or the propane/butane (C3-C4) fraction is passed to a steam cracker for ethylene production. The heavy fraction from the pyrolysis unit can also be passed to an isomerization dewaxing unit to produce a base oil.
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公开(公告)号：US20210332299A1
公开(公告)日：2021-10-28
申请号：US17237592
申请日：2021-04-22
Applicant: Chevron U.S.A. Inc.
Inventor： Hye-Kyung Timken
Abstract: Provided in one embodiment is a continuous process for converting waste plastic comprising polyethylene and/or polypropylene into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene, polypropylene, or a mixture thereof, and passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a pyrolysis oil comprising a naphtha, diesel and heavy fractions, and char. The pyrolysis oil, or at least a fraction, is passed to a filtration/metal oxide treatment, with the treated product passed to a refinery FCC unit. A liquid petroleum gas C3 olefin/paraffin mixture fraction is recovered from the FCC unit, as well as a C4 olefin/paraffin mixture fraction. The liquid petroleum gas C3 olefin/paraffin mixture fraction is passed to a steam cracker for ethylene production.
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