公开(公告)号：US20190002368A1

公开(公告)日：2019-01-03

申请号：US15640655

申请日：2017-07-03

Applicant: Chevron U.S.A. Inc.

Inventor： Hye-Kyung Cho Timken ,  Kenneth John Peinado ,  Bong-Kyu Chang

IPC: C07C2/58 ,  C07C5/333 ,  B01J31/02

Abstract: We provide a process, comprising:a. dehydrogenating natural gas liquid to produce a mixture comprising olefins and unconverted paraffins;b. without further purification or modification other than mixing with an isoparaffin, sending the mixture to a single alkylation reactor;c. alkylating the olefins with the isoparaffin, using an ionic liquid catalyst, to produce one or more alkylate products; andd. distilling the one or more alkylate products and collecting a bottoms distillation fraction that is a middle distillate blending component having a sulfur level of 50 wppm or less and a Bromine number less than 1.

公开(公告)号：US10167432B2

公开(公告)日：2019-01-01

申请号：US15473738

申请日：2017-03-30

Applicant: Chevron U.S.A. Inc.

Inventor： Hye-Kyung Cho Timken ,  Bong-Kyu Chang

IPC: C07C2/58 ,  C10G50/00 ,  C10G29/20 ,  C10G11/18 ,  B01J31/02 ,  B01J35/12 ,  C10G57/00 ,  C10L1/02 ,  B01J27/125

Abstract: Processes are provided for making an alkylate gasoline blending component, comprising: a. feeding an olefin feed comprising greater than 80 wppm of a sulfur contaminant comprising mercaptans, alkyl sulfides, and alkyl disulfides to a chloroaluminate ionic liquid catalyst, wherein a level of the sulfur contaminant accumulates in the chloroaluminate ionic liquid catalyst to make a sulfur-contaminated ionic liquid catalyst comprising 300 to 20,000 wppm of a sulfur; and b. alkylating the olefin feed with an isoparaffin using the sulfur-contaminated ionic liquid catalyst to make the alkylate gasoline blending component having a final boiling point below 221° C. An alkylation process exclusively utilizing coker LPG olefins is also provided.

公开(公告)号：US11753355B2

公开(公告)日：2023-09-12

申请号：US16862813

申请日：2020-04-30

Applicant: Chevron U.S.A. Inc.

Inventor： Howard Steven Lacheen ,  Hye-Kyung Cho Timken

IPC: C07C2/12 ,  B01J20/10 ,  B01J20/28 ,  B01J27/125 ,  B01J31/02 ,  C10G7/00 ,  C10G7/06 ,  C10G25/00 ,  C10G50/02 ,  C10G69/12

CPC classification number: C07C2/12 ,  B01J20/103 ,  B01J20/28061 ,  B01J20/28071 ,  B01J20/28083 ,  B01J27/125 ,  B01J31/0284 ,  C10G7/003 ,  C10G7/06 ,  C10G25/003 ,  C10G50/02 ,  C10G69/126 ,  C10G2300/302 ,  C10G2300/304 ,  C10G2300/70

Abstract: Described herein is a base oil synthesis via ionic catalyst oligomerization further utilizing a hydrophobic process for removing an ionic catalyst from a reaction mixture with a silica gel composition, specifically a reaction mixture comprising an oligomerization reaction to produce PAO utilizing an ionic catalyst wherein the ionic catalyst is removed post reaction.

公开(公告)号：US11643373B1

公开(公告)日：2023-05-09

申请号：US17954438

申请日：2022-09-28

Applicant: CHEVRON U.S.A. INC.

Inventor： Huping Luo ,  Hye-Kyung Cho Timken ,  Bong-Kyu Chang

IPC: C07C2/60 ,  B01J31/02 ,  C07C2/58 ,  C07C2/62

CPC classification number: C07C2/60 ,  B01J31/0277 ,  B01J31/0284 ,  C07C2/58 ,  C07C2/62 ,  C07C2531/02

Abstract: An alkylation process is described. The process involves alkylation of isobutane and ethylene in a loop reactor using an ionic liquid catalyst as a continuous phase. The alkylate typically has a research octane number of at least about 93, and the olefin conversion is typically at least about 95%.

公开(公告)号：US11621059B2

公开(公告)日：2023-04-04

申请号：US17325310

申请日：2021-05-20

Applicant: CHEVRON U.S.A. INC.

Inventor： Toni Zhang Miao ,  Huping Luo ,  Hye-Kyung Cho Timken ,  Eddy Lee ,  Bong-Kyu Chang

IPC: G16C20/70 ,  G16C10/00 ,  G16C20/30 ,  C07C2/76 ,  G01N21/3577 ,  G01N33/28 ,  C07C2/66 ,  C07C2/64 ,  G01N21/35 ,  C07C2/68 ,  C07C2/70

Abstract: A method is provided for predicting conjunct polymer concentration in spent ionic liquid during a continuous hydrocarbon conversion process.

公开(公告)号：US10301233B2

公开(公告)日：2019-05-28

申请号：US15640655

申请日：2017-07-03

Applicant: Chevron U.S.A. Inc.

Inventor： Hye-Kyung Cho Timken ,  Kenneth John Peinado ,  Bong-Kyu Chang

IPC: C07C2/54 ,  C07C2/58 ,  C07C5/333 ,  B01J31/02 ,  C10G29/20 ,  C10G57/00 ,  C10G5/00 ,  C10G9/00

Abstract: We provide a process, comprising:a. dehydrogenating natural gas liquid to produce a mixture comprising olefins and unconverted paraffins;b. without further purification or modification other than mixing with an isoparaffin, sending the mixture to a single alkylation reactor;c. alkylating the olefins with the isoparaffin, using an ionic liquid catalyst, to produce one or more alkylate products; andd. distilling the one or more alkylate products and collecting a bottoms distillation fraction that is a middle distillate blending component having a sulfur level of 50 wppm or less and a Bromine number less than 1.

公开(公告)号：US10094778B1

公开(公告)日：2018-10-09

申请号：US15612648

申请日：2017-06-02

Applicant: Chevron U.S.A. Inc.

Inventor： Huping Luo ,  Hye-Kyung Cho Timken ,  Toni Zhang Miao ,  Howard Steven Lacheen ,  Bi-Zeng Zhan

IPC: G01J3/00 ,  G01N21/552 ,  G01N21/3577 ,  G01N21/15 ,  G01N1/34 ,  G01N21/35

Abstract: An integrated system for monitoring a chemical concentration in an ionic liquid, comprising: a. an online FTIR instrument with an ATR window; b. a sample conditioning station that removes light hydrocarbons and produces a degassed ionic liquid that is analyzed by FTIR; and c. a solvent flushing system that flows solvent across the ATR window. Also, a process for monitoring the chemical concentration, comprising: a. degassing the ionic liquid in the sample conditioning station; b. passing the degassed ionic liquid over an ATR window; c. periodically redirecting a flow of the degassed ionic liquid via a bypass line or an on-off valve that isolates the ATR window from the process unit that elutes the ionic liquid; and d. flowing a solvent and a purging gas over the ATR window during the periodically redirecting step c); and e. resuming the passing of the degassed ionic liquid over the ATR window.

公开(公告)号：US20180065899A1

公开(公告)日：2018-03-08

申请号：US15255271

申请日：2016-09-02

Applicant: Chevron U.S.A. Inc.

Inventor： Hye-Kyung Cho Timken ,  Bong-Kyu Chang ,  Sven Ivar Hommeltoft

IPC: C07C2/58 ,  C10L1/06 ,  B01J31/02

CPC classification number: C07C2/58 ,  B01J31/0284 ,  B01J2231/32 ,  C07C2/60 ,  C07C2527/126 ,  C07C2531/02 ,  C10G17/02 ,  C10G29/205 ,  C10G2300/1088 ,  C10G2400/02 ,  C10L1/06 ,  C10L2270/023 ,  C07C11/02

Abstract: A process, comprising: providing an olefin feed comprising pentenes, butenes, and isopentane; and alkylating the olefin feed with isobutane using acidic ionic liquid catalyst; wherein less than 5 mol % of C5 olefins in the olefin feed are converted to isopentane, and the alkylate gasoline has defined final boiling points and high RONs. A process comprising: alkylating an olefin feed comprising pentenes and isopentane, with isobutane using acidic ionic liquid catalyst; wherein less than 5 mol % of C5 olefins in the olefin feed are converted to isopentane; and wherein an n-pentane product yield is low. An alkylate gasoline, comprising less than 0.1 wt % olefins and aromatics, less than 1.8 wt % C12+ hydrocarbons, and greater than 60 wt % combined C8 and C9 hydrocarbons, wherein the trimethylpentane in the C8 hydrocarbons and the trimethylhexane in the C9 hydrocarbons are defined.

公开(公告)号：US20180056212A1

公开(公告)日：2018-03-01

申请号：US15251640

申请日：2016-08-30

Applicant: Chevron U.S.A. Inc.

Inventor： Huping Luo ,  Hye-Kyung Cho Timken

IPC: B01D17/04 ,  B01D17/02 ,  C07C9/15 ,  C07C7/00

CPC classification number: B01D17/045 ,  B01D17/0214 ,  B01D17/10 ,  C07C7/00 ,  C07C7/005 ,  C07C9/15 ,  C10G31/00 ,  C10G33/06 ,  C07C9/14

Abstract: An integrated coalescing system for separating ionic liquid from a liquid hydrocarbon is provided, comprising: a. a bulk settler, that separates an emulsion comprising the dispersed ionic liquid with a wide range of droplet sizes into a clean ionic liquid phase and a separated liquid hydrocarbon phase comprising retained droplets; b. a pre-coalescer that receives the separated liquid hydrocarbon phase, separates out solid particles from the separated liquid hydrocarbon phase, and begins to form coalesced droplets of the retained droplets; and c. a coalescer that receives an effluent from the pre-coalescer, wherein the at least one coalescer comprises multiple layers of media having a fine pore size, and produces a clean hydrocarbon stream that is free of the dispersed ionic liquid and additional amounts of the clean ionic liquid phase. Also, a process is provided for separating an ionic liquid from a liquid hydrocarbon, using the integrated coalescing system.

公开(公告)号：US12043589B2

公开(公告)日：2024-07-23

申请号：US18116747

申请日：2023-03-02

Applicant: Chevron U.S.A. Inc.

Inventor： Bong Kyu Chang ,  Hye-Kyung Cho Timken ,  Michelle K. Young

IPC: C07C2/22 ,  C10G50/02

CPC classification number: C07C2/22 ,  C10G50/02 ,  C07C2527/06 ,  C07C2527/122 ,  C07C2527/125 ,  C07C2527/128

Abstract: A process for producing renewable distillate-range hydrocarbons is provided. The process includes dehydrating a renewable C2-C6 alcohol feedstock to produce an olefin, oligomerizing the olefin the presence of a halometallate ionic liquid catalyst to produce an oligomer product and hydrogenating the oligomer product or fractions thereof to produce saturated distillate-range hydrocarbons.