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公开(公告)号：US20240026234A1
公开(公告)日：2024-01-25
申请号：US18225061
申请日：2023-07-21
Applicant: UOP LLC
Inventor： Sakthivelan Maadasamy Durai , Jan De Ren , Ling Zhou , Pelin Cox , Sathit Kulprathipanja
IPC: C10G51/02
CPC classification number: C10G51/026 , C10G2300/708 , C10G2400/20 , C10G2300/201 , C10G2300/703
Abstract: A process for catalytic production of olefins comprises contacting a first hydrocarbon stream and a first stream of fluid catalyst in a first riser to produce a first cracked product stream and a spent catalyst stream. The first cracked product stream is separated in a main column. An overhead stream from the main column is separated into a second hydrocarbon stream. The second hydrocarbon stream is contacted with a second stream of fluid catalyst in a second riser to produce a second cracked product stream and a first stream of cool catalyst. A third hydrocarbon stream is obtained from the overhead stream and/or from the second cracked product stream. The third hydrocarbon stream is contacted with a third stream of fluid catalyst in a third riser to produce a third cracked product stream and a second stream of cool catalyst.
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公开(公告)号：US11866662B1
公开(公告)日：2024-01-09
申请号：US18163349
申请日：2023-02-02
Applicant: Saudi Arabian Oil Company
Inventor： Mansour Ali Al-Herz , Ali Al Jawad , Qi Xu , Aaron Akah , Musaed Salem Al-Ghrami , Lianhui Ding
CPC classification number: C10G69/04 , C10G7/00 , C10G11/18 , C10G45/02 , C10G45/44 , C10G51/026 , C10G2300/1033 , C10G2300/301 , C10G2300/308 , C10G2300/4006 , C10G2300/4018 , C10G2400/20
Abstract: According to one embodiment of the present disclosure, a method of processing a hydrocarbon feed may comprise fractionating the hydrocarbon feed into a light stream, a middle stream, and a residue stream, hydrotreating the residue stream to form a hydrotreated residue stream; and feeding the light stream, middle stream, and the hydrotreated residue stream to a single Fluid Catalytic Cracking (FCC) reaction zone, thereby producing a product stream comprising light olefins. The light stream and the hydrotreated residue streams may be exposed to more severe FCC cracking conditions than the middle stream, within the same FCC reaction zone. The single FCC reaction zone may be operated in a down-flow configuration and the single FCC reaction zone may be operated under high severity conditions.
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公开(公告)号：US11781073B2
公开(公告)日：2023-10-10
申请号：US18053518
申请日：2022-11-08
Applicant: Chevron Phillips Chemical Company LP
Inventor： Ronald G. Abbott , Scott G. Morrison , Steven R. Horlacher , Jamie N. Sutherland , Bruce D. Murray , Jacob M. Hilbrich , Charles T. Polito
CPC classification number: C10B53/07 , C10G45/26 , C10G45/50 , C10G51/023 , C10G57/02 , C10G2300/1003 , C10G2400/04 , C10G2400/06 , C10G2400/20 , C10G2400/22 , C10G2400/28 , C10G2400/30
Abstract: This disclosure relates to the production of chemicals and plastics using pyrolysis oil from the pyrolysis of plastic waste as a co-feedstock along with a petroleum-based or fossil fuel co-feed, or as a feedstock in the absence of a petroleum-based or fossil fuel co-feed. A mass balance accounting approach is employed to attribute the pounds of pyrolyzed plastic products derived from pyrolysis oil to any output stream of a given unit, which permits assigning circular product credit to product streams. In an aspect, the polymers and chemicals produced according to this disclosure can be certified under International Sustainability and Carbon Certification (ISCC) provisions as circular polymers and chemicals at any point along complex chemical reaction pathways.
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公开(公告)号：US11618855B2
公开(公告)日：2023-04-04
申请号：US17934619
申请日：2022-09-23
Applicant: Chevron Phillips Chemical Company LP
Inventor： Ronald G. Abbott , Scott G. Morrison , Steven R. Horlacher , Jamie N. Sutherland , Bruce D. Murray , Jacob M. Hilbrich , Charles T. Polito
Abstract: This disclosure relates to the production of chemicals and plastics using pyrolysis oil from the pyrolysis of plastic waste as a co-feedstock along with a petroleum-based, fossil fuel-based, or bio-based feedstock. In an aspect, the polymers and chemicals produced according to this disclosure can be certified under International Sustainability and Carbon Certification (ISCC) provisions as circular polymers and chemicals at any point along complex chemical reaction pathways. The use of a mass balance approach which attributes the pounds of pyrolyzed plastic products derived from pyrolysis oil to any output stream of a given unit has been developed, which permits ISCC certification agency approval.
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5.发明授权公开(公告)号：US11572516B2
公开(公告)日：2023-02-07
申请号：US16830759
申请日：2020-03-26
Applicant: Saudi Arabian Oil Company
Inventor： Sohel K Shaikh , Raed H Abudawoud , Zhonglin Zhang , Munir D Khokhar , Furqan Aljumah
IPC: C10G69/06 , C07C6/04 , C07C11/06 , B01J19/18 , C07C1/22 , C07C4/04 , C07C4/06 , C07C5/05 , C07C41/06 , C10G51/02 , C10G51/06 , C10G65/10 , C10G65/12
Abstract: Processes for producing olefins include integration of steam cracking with a dual catalyst metathesis process. The processes include steam cracking a hydrocarbon feed to form a cracking reaction effluent containing butenes, separating the cracking reaction effluent to produce a cracking C4 effluent including normal butenes, isobutene, and 1,3-butadiene, subjecting the cracking C4 effluent to selective hydrogenation to convert 1,3-butadiene in the cracking C4 effluent to normal butenes, removing isobutene from a hydrogenation effluent to produce a metathesis feed containing normal butenes, and contacting the metathesis feed with a metathesis catalyst and a cracking catalyst directly downstream of the metathesis catalyst to produce a metathesis reaction effluent. Contacting with the metathesis catalyst causes metathesis of normal butenes to produce ethylene, propene, and C5+ olefins, and contacting with the cracking catalyst causes C5+ olefins produced through metathesis to undergo cracking reactions to produce additional propene, ethylene, or both.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11566182B2
公开(公告)日：2023-01-31
申请号：US17131928
申请日：2020-12-23
Applicant: Chevron U.S.A. Inc.
Inventor： Hye-Kyung Timken , Cameron McCord
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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公开(公告)号：US11370979B2
公开(公告)日：2022-06-28
申请号：US17242487
申请日：2021-04-28
Applicant: LUMMUS TECHNOLOGY LLC
Inventor： Liang Chen , Peter Loezos , Rama Rao Marri , Bryan Tomsula , Jon A. Hood , Hardik Singh , Michael Dorsey , Justin Breckenridge
Abstract: Apparatus and processes herein provide for converting hydrocarbon feeds to light olefins and other hydrocarbons. The processes and apparatus include, in some embodiments, feeding a hydrocarbon, a first catalyst and a second catalyst to a reactor, wherein the first catalyst has a smaller average particle size and is less dense than the second catalyst. A first portion of the second catalyst may be recovered as a bottoms product from the reactor, and a cracked hydrocarbon effluent, a second portion of the second catalyst, and the first catalyst may be recovered as an overhead product from the reactor. The second portion of the second catalyst may be separated from the overhead product, providing a first stream comprising the first catalyst and the hydrocarbon effluent and a second stream comprising the separated second catalyst, allowing return of the separated second catalyst in the second stream to the reactor.
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公开(公告)号：US20220177788A1
公开(公告)日：2022-06-09
申请号：US17594370
申请日：2020-05-22
Applicant: Eastman Chemnical Company
Inventor： Daryl Bitting , Kenny Randolph Parker , Michael Gary Polasek , David Eugene Sllivensky , Xianchun Wu
Abstract: Recycle content pyoil is cracked in a cracker furnace to make olefins and the coil outlet temperature of the r-pyoil fed coils can he lowered by adding r-pyoil to the cracker feedstock, or alternatively, the coil outlet temperature of the r-pyoil fed tubes can rise if the mass flow rates of the combined cracker stream containing r-pyoil are kept the same or lowered. Further, increasing the hydrocarbon mass flow rate by addition of r-pyoil can be achieved to also increase the output of ethylene and propylene in the cracker effluent. The cracker furnace can accept ethane and/or propane feedstocks in vapor form along with a liquid and/or vapor feed of r-pyoil.
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9.发明授权公开(公告)号：US11306253B2
公开(公告)日：2022-04-19
申请号：US17131910
申请日：2020-12-23
Applicant: Chevron U.S.A. Inc.
Inventor： Hye-Kyung Timken , Cameron McCord
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 wax comprising a naphtha/diesel and heavy fraction, and char. The pyrolysis oil is passed to a refinery FCC unit from which a liquid petroleum gas C3 olefin/paraffin mixture fraction is recovered, 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. The C4 olefin/paraffin mixture fraction is passed to a refinery alkylation unit, from which a n-butane and naphtha feed for a stream cracker to produce ethylene is recovered.
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公开(公告)号：US20220098491A1
公开(公告)日：2022-03-31
申请号：US17487770
申请日：2021-09-28
Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
Inventor： Ron G. ABBOTT , Scott G. MORRISON , Steve R. HORLACHER , Jamie N. SUTHERLAND , Bruce D. MURRAY , Jacob M. HILBRICH , Charles T. POLITO
Abstract: This disclosure relates to the production of chemicals and plastics using pyrolysis oil from the pyrolysis of plastic waste as a co-feedstock along with a petroleum-based or fossil fuel co-feed, or as a feedstock in the absence of a petroleum-based or fossil fuel co-feed. A mass balance accounting approach is employed to attribute the pounds of pyrolyzed plastic products derived from pyrolysis oil to any output stream of a given unit, which permits assigning circular product credit to product streams. In an aspect, the polymers and chemicals produced according to this disclosure can be certified under International Sustainability and Carbon Certification (ISCC) provisions as circular polymers and chemicals at any point along complex chemical reaction pathways.
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