公开(公告)号：US20210189251A1

公开(公告)日：2021-06-24

申请号：US17131845

申请日：2020-12-23

Applicant: Chevron U.S.A. Inc.

Inventor： Hye-Kyung Timken

IPC: C10G1/10 ,  C10G1/00 ,  C10G11/18 ,  C07C2/76 ,  C07C4/04 ,  C08F10/02 ,  C10B53/07

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 and wax is passed to a refinery FCC unit from which a liquid petroleum gas C3-C5 olefin/paraffin mixture fraction is recovered. The liquid petroleum gas C3-C5 olefin/paraffin mixture fraction is passed to a refinery alkylation unit, with a propane and butane fraction recovered from the alkylation unit. The propane and butane fraction is then passed to a steam cracker for ethylene production. In another embodiment, a naphtha fraction (C5-C8) is recovered from the alkylation unit and passed to the steam cracker. In another embodiment, a propane/propylene fraction (C3-C3=) is recovered from the FCC and passed to the steam cracker.

公开(公告)号：US20180207629A1

公开(公告)日：2018-07-26

申请号：US15928690

申请日：2018-03-22

Applicant: Chevron U.S.A. Inc.

Inventor： Michael John Girgis ,  Huping Luo ,  Bong Kyu Chang ,  Hye-Kyung Timken ,  Steven Xugi Song ,  Michael Sean Driver

IPC: B01J31/40 ,  B01J35/12 ,  B01J38/10 ,  C10L1/06 ,  B01J31/02 ,  C07C2/62 ,  C10G29/20 ,  C10G50/00 ,  C10G47/02 ,  C10G45/60 ,  C07C11/16

CPC classification number: B01J31/40 ,  B01J31/0284 ,  B01J31/0298 ,  B01J35/12 ,  B01J38/10 ,  B01J2231/44 ,  C07C2/62 ,  C07C2531/02 ,  C10G29/205 ,  C10G45/60 ,  C10G47/02 ,  C10G50/00 ,  C10L1/06 ,  C10L2270/023 ,  C10L2290/12 ,  Y02P20/584 ,  C07C11/16

Abstract: We provide a process for regenerating a spent acidic ionic liquid, comprising contacting the spent acidic ionic liquid with hydrogen and without an addition of a hydrogenation catalyst; wherein a conjunct polymer content is decreased in the spent acidic ionic liquid to produce regenerated acidic ionic liquid. We also provide a process for making an alkylate gasoline blending component, comprising: a) alkylating a mixture of isoparaffins and olefins using an acidic ionic liquid and an alkyl halide or a hydrogen halide, wherein a conjunct polymer accumulates in a spent acidic ionic liquid; and b) feeding the spent acidic ionic liquid and a hydrogen, and without an addition of a hydrogenation catalyst, to a regeneration reactor operated under selected hydrogenation conditions to produce a regenerated acidic ionic liquid that is used for the alkylating, wherein the conjunct polymer in the regenerated acidic ionic liquid is decreased by at least 50 wt %.

公开(公告)号：US09956552B2

公开(公告)日：2018-05-01

申请号：US15010168

申请日：2016-01-29

Applicant: Chevron U.S.A. Inc.

Inventor： Michael John Girgis ,  Huping Luo ,  Bong Kyu Chang ,  Hye-Kyung Timken ,  Steven Xugi Song ,  Michael Sean Driver

IPC: C07C2/58 ,  B01J31/40 ,  B01J31/02 ,  B01J38/10 ,  C07C2/62 ,  C10L1/06 ,  C10G29/20 ,  C10G45/60 ,  C10G47/02 ,  C10G50/00 ,  B01J35/12

CPC classification number: B01J31/40 ,  B01J31/0284 ,  B01J35/12 ,  B01J38/10 ,  B01J2231/44 ,  C07C2/62 ,  C07C2531/02 ,  C10G29/205 ,  C10G45/60 ,  C10G47/02 ,  C10G50/00 ,  C10L1/06 ,  C10L2270/023 ,  C10L2290/12 ,  Y02P20/584 ,  C07C11/16

Abstract: We provide a process for regenerating a spent acidic ionic liquid, comprising contacting the spent acidic ionic liquid with hydrogen and without an addition of a hydrogenation catalyst; wherein a conjunct polymer content is decreased in the spent acidic ionic liquid to produce regenerated acidic ionic liquid. We also provide a process for making an alkylate gasoline blending component, comprising: a) alkylating a mixture of isoparaffins and olefins using an acidic ionic liquid and an alkyl halide or a hydrogen halide, wherein a conjunct polymer accumulates in a spent acidic ionic liquid; and b) feeding the spent acidic ionic liquid and a hydrogen, and without an addition of a hydrogenation catalyst, to a regeneration reactor operated under selected hydrogenation conditions to produce a regenerated acidic ionic liquid that is used for the alkylating, wherein the conjunct polymer in the regenerated acidic ionic liquid is decreased by at least 50 wt %.

公开(公告)号：US20170216827A1

公开(公告)日：2017-08-03

申请号：US15010168

申请日：2016-01-29

Applicant: Chevron U.S.A. Inc.

Inventor： Michael John Girgis ,  Huping Luo ,  Bong Kyu Chang ,  Hye-Kyung Timken ,  Steven Xugi Song ,  Michael Sean Driver

IPC: B01J31/40 ,  C10L1/06 ,  C07C2/62 ,  B01J31/02 ,  B01J38/10

CPC classification number: B01J31/40 ,  B01J31/0284 ,  B01J35/12 ,  B01J38/10 ,  B01J2231/44 ,  C07C2/62 ,  C07C2531/02 ,  C10G29/205 ,  C10G45/60 ,  C10G47/02 ,  C10G50/00 ,  C10L1/06 ,  C10L2270/023 ,  C10L2290/12 ,  Y02P20/584 ,  C07C11/16

Abstract: We provide a process for regenerating a spent acidic ionic liquid, comprising contacting the spent acidic ionic liquid with hydrogen and without an addition of a hydrogenation catalyst; wherein a conjunct polymer content is decreased in the spent acidic ionic liquid to produce regenerated acidic ionic liquid. We also provide a process for making an alkylate gasoline blending component, comprising: a) alkylating a mixture of isoparaffins and olefins using an acidic ionic liquid and an alkyl halide or a hydrogen halide, wherein a conjunct polymer accumulates in a spent acidic ionic liquid; and b) feeding the spent acidic ionic liquid and a hydrogen, and without an addition of a hydrogenation catalyst, to a regeneration reactor operated under selected hydrogenation conditions to produce a regenerated acidic ionic liquid that is used for the alkylating, wherein the conjunct polymer in the regenerated acidic ionic liquid is decreased by at least 50 wt %.