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公开(公告)号：US20240010940A1
公开(公告)日：2024-01-11
申请号：US18349304
申请日：2023-07-10
Applicant: Chevron U.S.A. Inc.
Inventor： Tengfei LIU , Joel E. SCHMIDT , Hye-Kyung C. TIMKEN
IPC: C10G69/12
CPC classification number: C10G69/126 , C10G2300/70 , C10G2300/1007 , C10G2300/202 , C10G2300/4081
Abstract: Provided is a continuous process for converting waste plastic into recycle for chemical production. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a stable blend of a bio feedstock and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a conversion unit. Useful chemicals are recovered, including C3 and C4 olefins and aromatics.
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公开(公告)号：US20250073635A1
公开(公告)日：2025-03-06
申请号：US18816370
申请日：2024-08-27
Applicant: Chevron U.S.A. Inc.
Inventor： Dominic BURNS , Hye-Kyung C. TIMKEN , John HOLBREY , Huping LUO , Evan HATAKEYAMA
Abstract: In one embodiment is provided an energy-efficient post-combustion CO2 capturing process utilizing protic ionic liquids made of an organic superbase and a weak acid in the presence of moisture. The concept is demonstrated in one embodiment with the ionic liquid, 1,8-diazabiciclo(5.4.0)undec-7-enium imidazolate, [DBUH][Im].
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公开(公告)号：US20230312862A1
公开(公告)日：2023-10-05
申请号：US18128306
申请日：2023-03-30
Applicant: Chevron U.S.A. Inc.
Inventor： Tengfei LIU , Joel E. SCHMIDT , Hye-Kyung C. TIMKEN , Richard L. GROVE , Kaidong CHEN
IPC: C08J11/14 , C08F110/02
CPC classification number: C08J11/14 , C08F110/02 , C08J2323/06
Abstract: Provided 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 preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery FCC unit. A liquid petroleum gas LPG olefin/paraffin mixture and naphtha are recovered from the FCC unit and passed to a steam cracker to make ethylene.
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公开(公告)号：US20240010927A1
公开(公告)日：2024-01-11
申请号：US18349276
申请日：2023-07-10
Applicant: Chevron U.S.A. Inc.
Inventor： Tengfei LIU , Joel E. SCHMIDT , Hye-Kyung C. TIMKEN
IPC: C10G11/05
CPC classification number: C10G11/05 , C10G2400/20 , C10G2400/02 , C10G2400/30 , C10G2300/1003 , C10G2300/1018 , C10G2300/1014 , C10G2300/708 , C10G2300/305
Abstract: Provided is a composition comprising a blend of a waste plastic and a bio feedstock. Also provided is a process for preparing a stable blend of a plastic and bio feedstock which can be stored or transported if desired. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend can be passed to a conversion unit for conversion of the waste plastic and bio feedstock. The conversion process produces clean monomers for polymerization and chemical intermediates.
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5.发明公开公开(公告)号：US20230348342A1
公开(公告)日：2023-11-02
申请号：US18128350
申请日：2023-03-30
Applicant: Chevron U.S.A. Inc.
Inventor： Hye-Kyung C. TIMKEN
IPC: C07C4/22 , C10G1/00 , C10M177/00 , C08J11/12 , C10M101/02
CPC classification number: C07C4/22 , C08J11/12 , C10G1/002 , C10M101/02 , C10M177/00 , C08J2323/06 , C10G2300/1003 , C10G2300/202 , C10G2300/205 , C10G2300/308 , C10G2400/02 , C10G2400/04 , C10G2400/06 , C10G2400/08 , C10G2400/10 , C10M2203/1006 , C10N2070/00
Abstract: Provided 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 preparing a blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery hydrocracking unit. A liquid petroleum gas C3-C4 olefin/paraffin mixture, and optionally naphtha, is recovered from the hydrocracking unit and passed to a steam cracker to make ethylene. A heavy fraction can also be recovered from the hydrocracking unit and passed to an isomerization dewaxing unit to prepare base oil.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20230312863A1
公开(公告)日：2023-10-05
申请号：US18128444
申请日：2023-03-30
Applicant: Chevron U.S.A. Inc.
Inventor： Hye-Kyung C. TIMKEN , Tengfei LIU , Joel E. SCHMIDT , Kaustav CHAUDHURI
IPC: C08J11/20
CPC classification number: C08J11/20 , C08J2323/06 , C08J2323/12
Abstract: Provided is a blend of a petroleum feedstock and 1-20 wt. % of plastic, based on the weight of the blend, with the plastic comprising polyethylene and/or polypropylene, and the plastic in the blend comprising finely dispersed microcrystalline particles having an average particle size of 10 micron to less than 100 microns. A process for preparing a blend of plastic and petroleum is provided, comprising mixing together a petroleum feed and a plastic comprising polyethylene and/or polypropylene and heating the mixture above the melting point of the plastic, but less than 500° F. Then cooling the plastic melt and petroleum feedstock liquid blend with mixing to a temperature below the melting point of the plastic.
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7.发明公开公开(公告)号：US20240010928A1
公开(公告)日：2024-01-11
申请号：US18349300
申请日：2023-07-10
Applicant: Chevron U.S.A. Inc.
Inventor： Joel E. SCHMIDT , Tengfei LIU , Hye-Kyung C. TIMKEN
CPC classification number: C10G11/05 , C07C4/06 , C08J11/10 , B01D3/14 , C10G2400/02 , C10G2400/04 , C10G2400/08 , C10G2300/1003 , C10G2300/1014 , C10G2300/1018 , C07C2529/12 , C07C2529/40 , C08J2323/12
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 preparing a blend of a bio feedstock and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a FCC unit. A liquid petroleum gas LPG olefin/paraffin mixture and naphtha are recovered from the FCC unit and can be passed on to make polypropylene.
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8.发明公开公开(公告)号：US20240010583A1
公开(公告)日：2024-01-11
申请号：US18349288
申请日：2023-07-10
Applicant: Chevron U.S.A. Inc.
Inventor： Joel E. SCHMIDT , Tengfei LIU , Hye-Kyung C. TIMKEN
Abstract: Provided 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 preparing a blend of a bio feedstock and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a FCC unit. A liquid petroleum gas LPG olefin/paraffin mixture and naphtha are recovered from the FCC unit and can be passed on to make polyethylene.
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9.发明公开公开(公告)号：US20230312439A1
公开(公告)日：2023-10-05
申请号：US18128429
申请日：2023-03-30
Applicant: Chevron U.S.A. Inc.
Inventor： Hye-Kyung C. TIMKEN
CPC classification number: C07C4/22 , C10G1/002 , C08J11/12 , C10G2400/02 , C10G2400/04 , C10G2400/06 , C10G2400/08 , C10G2300/1003 , C10G2300/205 , C10G2300/202 , C10G2300/308 , C08J2323/12
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 preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery crude unit. A liquid petroleum gas C3 olefin/paraffin mixture is recovered from the crude unit. The C3 paraffins and C3 olefins are separated into different fractions with the C3 olefin fraction passed to a propylene polymerization reactor, and the C3 paraffin fraction passed to a dehydrogenation unit to produce additional propylene. Product streams from the crude unit can also be passed to a hydrocracking unit, with a recovered heavy fraction then being passed to an isomerization dewaxing unit to prepare base oil.
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10.发明公开公开(公告)号：US20230313052A1
公开(公告)日：2023-10-05
申请号：US18128366
申请日：2023-03-30
Applicant: Chevron U.S.A. Inc.
Inventor： Hye-Kyung C. TIMKEN
CPC classification number: C10G47/34 , C10G1/002 , C10G45/72 , C08F10/06 , C10G2300/1003 , C10G2300/4081 , C10G2400/02 , C10G2400/04 , C10G2400/08
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 preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery hydrocracking unit. A liquid petroleum gas C3 olefin/paraffin mixture is recovered from the hydrocracking unit. The C3 paraffins and C3 olefins are separated into different fractions with the C3 olefin fraction passed to a propylene polymerization reactor, and the C3 paraffin fraction passed optionally to a dehydrogenation unit to produce additional propylene. A heavy fraction can also be recovered from the hydrocracking unit and passed to an isomerization dewaxing unit to prepare base oil.
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