公开(公告)号：US11951458B2

公开(公告)日：2024-04-09

申请号：US18344450

申请日：2023-06-29

Applicant: Chevron U.S.A. Inc.

Inventor： Xiaoying Ouyang ,  Viorel Duma ,  Alexander Kuperman ,  Ibrahim Uckung ,  Theodorus Ludovicus Michael Maesen ,  Axel Brait ,  Charles Wilson

IPC: C10G45/00 ,  B01J21/06 ,  B01J23/28 ,  B01J23/30 ,  B01J23/755 ,  B01J23/89 ,  B01J35/31 ,  B01J35/61 ,  B01J35/63 ,  B01J37/00 ,  B01J37/03 ,  B01J37/04 ,  B01J37/08 ,  B01J37/20 ,  C07C5/10 ,  C10G47/00 ,  C10G49/00

CPC classification number: B01J23/8993 ,  B01J35/31 ,  B01J35/615 ,  B01J35/633 ,  B01J37/0045 ,  B01J37/031 ,  B01J37/04 ,  B01J37/08 ,  B01J37/20 ,  C07C5/10 ,  C10G45/00 ,  C10G47/00 ,  C10G49/00 ,  C10G2300/1055 ,  C10G2300/1074 ,  C10G2300/4006 ,  C10G2300/4012 ,  C10G2300/4018 ,  C10G2300/42 ,  C10G2300/70

Abstract: Bulk catalysts comprised of nickel, molybdenum, tungsten and titanium and methods for synthesizing bulk catalysts are provided. The catalysts are useful for hydroprocessing, particularly hydrodesulfurization and hydrodenitrogenation, of hydrocarbon feedstocks.

公开(公告)号：US11731112B2

公开(公告)日：2023-08-22

申请号：US17190611

申请日：2021-03-03

Applicant: CHEVRON U.S.A. INC.

Inventor： Xiaoying Ouyang ,  Viorel Duma ,  Alexander Kuperman ,  Ibrahim Uckung ,  Theodorus Ludovicus Michael Maesen ,  Axel Brait ,  Charles Wilson

IPC: B01J21/06 ,  B01J23/755 ,  B01J23/28 ,  B01J23/30 ,  B01J23/89 ,  B01J35/00 ,  B01J35/10 ,  B01J37/00 ,  B01J37/03 ,  B01J37/04 ,  B01J37/08 ,  B01J37/20 ,  C07C5/10 ,  C10G45/00 ,  C10G47/00 ,  C10G49/00

CPC classification number: B01J23/8993 ,  B01J35/0026 ,  B01J35/1019 ,  B01J35/1038 ,  B01J37/0045 ,  B01J37/031 ,  B01J37/04 ,  B01J37/08 ,  B01J37/20 ,  C07C5/10 ,  C10G45/00 ,  C10G47/00 ,  C10G49/00 ,  C10G2300/1055 ,  C10G2300/1074 ,  C10G2300/4006 ,  C10G2300/4012 ,  C10G2300/4018 ,  C10G2300/42 ,  C10G2300/70

Abstract: Bulk catalysts comprised of nickel, molybdenum, tungsten and titanium and methods for synthesizing bulk catalysts are provided. The catalysts are useful for hydroprocessing, particularly hydrodesulfurization and hydrodenitrogenation, of hydrocarbon feedstocks.

公开(公告)号：US20230160037A1

公开(公告)日：2023-05-25

申请号：US17794157

申请日：2021-01-20

Applicant: Chevron U.S.A. Inc.

Inventor： Rahul Shankar Bhaduri ,  Bruce Edward Reynolds ,  Oleg A. Mironov ,  Alexander Kuperman ,  Woodrow K. Shiflett

IPC: C22B34/34 ,  C22B34/22 ,  C22B7/00 ,  C22B1/02

CPC classification number: C22B34/345 ,  C22B1/02 ,  C22B7/006 ,  C22B34/225

Abstract: An improved method for recovering metals from spent catalysts, particularly from spent slurry catalysts, is disclosed. The method and associated processes comprising the method are useful to recover spent catalyst metals used in the petroleum and chemical processing industries. The method generally involves a combination of a pyrometallurgical and a hydrometallurgical method and includes forming a potassium carbonate calcine of a KOH leach residue of the spent catalyst containing an insoluble Group VIIIB/Group VIB/Group VB metal compound combined with potassium carbonate, and extracting and recovering soluble Group VIB metal and soluble Group VB metal compounds from the potassium carbonate calcine.

公开(公告)号：US09776181B2

公开(公告)日：2017-10-03

申请号：US14664123

申请日：2015-03-20

Applicant: Chevron U.S.A. Inc.

Inventor： Alexander Kuperman ,  Theodorus Ludovicus Michael Maesen ,  Dennis Dykstra

IPC: B01J37/34 ,  B01J23/85 ,  B01J23/888 ,  B01J37/03 ,  B01J27/051 ,  B01J37/04 ,  B01J37/08 ,  B01J37/20

CPC classification number: B01J37/342 ,  B01J23/85 ,  B01J23/8885 ,  B01J27/0515 ,  B01J37/03 ,  B01J37/036 ,  B01J37/04 ,  B01J37/08 ,  B01J37/20 ,  B01J37/34

Abstract: In a process for forming a bulk hydroprocessing catalyst by sulfiding a catalyst precursor made in a co-precipitation reaction, up to 60% of the metal precursor feeds do not react to form catalyst precursor and end up in the supernatant as metal residuals. In the present disclosure, the metals can be recovered in a chemical precipitation step, wherein the supernatant is mixed with at least one of an acid, a sulfide-containing compound, a base, and combinations thereof to precipitate at least 50% of metal ions in at least one of the metal residuals, wherein the precipitation is carried out at a pre-select pH. The precipitate is isolated and recovered, yielding an effluent stream. The precipitate and/or the effluent stream can be further treated to form at least a metal precursor feed which can be used in the co-precipitation reaction. The process generates an effluent to waste treatment containing less than 50 ppm metals.

公开(公告)号：US12011710B1

公开(公告)日：2024-06-18

申请号：US18344380

申请日：2023-06-29

Applicant: Chevron U.S.A. Inc.

Inventor： Xiaoying Ouyang ,  Viorel Duma ,  Alexander Kuperman ,  Ibrahim Uckung ,  Theodorus Ludovicus Michael Maesen ,  Axel Brait ,  Charles Wilson

IPC: B01J37/20 ,  B01J23/89 ,  B01J35/31 ,  B01J35/61 ,  B01J35/63 ,  B01J37/00 ,  B01J37/03 ,  B01J37/04 ,  B01J37/08 ,  C07C5/10 ,  C10G45/00 ,  C10G47/00 ,  C10G49/00

CPC classification number: B01J23/8993 ,  B01J35/31 ,  B01J35/615 ,  B01J35/633 ,  B01J37/0045 ,  B01J37/031 ,  B01J37/04 ,  B01J37/08 ,  B01J37/20 ,  C07C5/10 ,  C10G45/00 ,  C10G47/00 ,  C10G49/00 ,  C10G2300/1055 ,  C10G2300/1074 ,  C10G2300/4006 ,  C10G2300/4012 ,  C10G2300/4018 ,  C10G2300/42 ,  C10G2300/70

Abstract: Bulk catalysts comprised of nickel, molybdenum, tungsten and titanium and methods for synthesizing bulk catalysts are provided. The catalysts are useful for hydroprocessing, particularly hydrodesulfurization and hydrodenitrogenation, of hydrocarbon feedstocks.

公开(公告)号：US20220259696A1

公开(公告)日：2022-08-18

申请号：US17625444

申请日：2020-07-08

Applicant: Chevron U.S.A. Inc.

Inventor： Rahul Shankar Bhaduri ,  Bruce Edward Reynolds ,  Oleg A. Mironov ,  Alexander Kuperman ,  Woodrow K. Shiflett

IPC: C22B7/00 ,  C22B34/22 ,  C22B34/34

Abstract: An improved method for recovering metals from spent catalysts, particularly from spent slurry catalysts, is disclosed. The method and associated processes comprising the method are useful to recover catalyst metals used in the petroleum and chemical processing industries. The method generally involves a pyrometallurgical method and a hydrometallurgical method and includes forming a soda ash calcine of a caustic leach residue of the spent catalyst containing an insoluble Group VIII/Group VIB/Group VB metal compound combined with soda ash, and extracting and recovering soluble Group VIB metal and soluble Group VB metal compounds from the soda ash calcine.

公开(公告)号：US20230278858A1

公开(公告)日：2023-09-07

申请号：US18116214

申请日：2023-03-01

Applicant: CHEVRON U.S.A. INC.

Inventor： Xiaoying Ouyang ,  Alexander Kuperman ,  Huping Luo ,  Lin Li

IPC: C01B3/26 ,  B01J23/745 ,  B01J21/08 ,  B01J21/06 ,  B01J27/224 ,  B01J23/06 ,  B01J21/04 ,  B01J23/755 ,  B01J29/46 ,  B01J23/83 ,  B01J37/08 ,  B01J37/06 ,  B01J37/02 ,  B01J35/04

CPC classification number: C01B3/26 ,  B01J23/745 ,  B01J21/08 ,  B01J21/063 ,  B01J27/224 ,  B01J23/06 ,  B01J21/04 ,  B01J23/755 ,  B01J29/46 ,  B01J23/83 ,  B01J37/086 ,  B01J37/06 ,  B01J37/0201 ,  B01J35/04 ,  B01J37/0236 ,  C01B2203/1241 ,  C01B2203/1058 ,  C01B2203/1076

Abstract: The present disclosure refers to systems, methods, and catalysts for conversion of a hydrocarbon to hydrogen. The catalyst typically comprises a matrix comprising fused silica, quartz, glass, a zeolite, Si3N4, SiC, SiCxOy wherein 4x+2y =4, SiOaNb wherein 2a+3b =4, BN, TiO2, ZrO2, Al2O3, CeO2, Nb2O5, La2O3, a perovskite, or any mixture thereof. A metal dopant is embedded in the matrix. The metal dopant comprises Fe, Ni, Co, Cu, Zn, Mn, or any mixture thereof.

公开(公告)号：US09687823B2

公开(公告)日：2017-06-27

申请号：US13715943

申请日：2012-12-14

Applicant: Chevron U.S.A. Inc.

Inventor： Julie Chabot ,  Bo Kou ,  Alexander Kuperman

IPC: B01J23/78 ,  B01J23/28 ,  B01J23/30 ,  B01J23/75 ,  B01J23/755 ,  B01J35/00 ,  B01J23/85 ,  B01J31/02 ,  B01J35/02 ,  B01J37/00 ,  B01J37/04 ,  B01J21/02 ,  B01J21/06 ,  B01J21/10 ,  B01J21/12 ,  C10G47/26 ,  C10G49/02 ,  C10G49/12

CPC classification number: B01J23/78 ,  B01J21/02 ,  B01J21/06 ,  B01J21/10 ,  B01J21/12 ,  B01J23/28 ,  B01J23/30 ,  B01J23/75 ,  B01J23/755 ,  B01J23/85 ,  B01J31/0205 ,  B01J31/0247 ,  B01J35/0006 ,  B01J35/023 ,  B01J37/0036 ,  B01J37/04 ,  C10G47/26 ,  C10G49/02 ,  C10G49/12

Abstract: A hydroprocessing co-catalyst composition may comprise in an embodiment a first component comprising co-catalyst particles and a liquid carrier, and a second component comprising a dispersant and a dispersant diluent. The co-catalyst particles may be in the micron size range, and the dispersant may promote dispersion of the co-catalyst particles in materials such as the liquid carrier, the dispersant diluent, and combinations thereof. Methods of introducing a hydroprocessing co-catalyst composition into a hydroprocessing system are also disclosed.

公开(公告)号：US09295983B2

公开(公告)日：2016-03-29

申请号：US14582019

申请日：2014-12-23

Applicant: The Regents of the University of California ,  Chevron U.S.A. Inc.

Inventor： Alexander Katz ,  Namal De Silva ,  Andrew Solovyov ,  Alexander Kuperman ,  Cong-Yan Chen ,  Partha Nandi ,  Alexander Okrut ,  Igor Busygin

IPC: B01J31/24 ,  C07F15/00 ,  C07C5/03 ,  B01J23/46 ,  B01J31/16 ,  B01J31/06 ,  B01J35/00

CPC classification number: B01J31/24 ,  B01J23/46 ,  B01J23/468 ,  B01J31/066 ,  B01J31/16 ,  B01J31/20 ,  B01J31/2273 ,  B01J31/2404 ,  B01J31/2447 ,  B01J31/2457 ,  B01J35/0013 ,  B01J37/086 ,  B01J2231/641 ,  B01J2231/645 ,  B01J2231/70 ,  B01J2531/0211 ,  B01J2531/827 ,  B01J2540/10 ,  B01J2540/50 ,  C07C5/03 ,  C07C2531/24 ,  C07F15/0033

Abstract: The invention provides complexes in which a calixarene-related compound is coordinated to an iridium-containing metal colloid. The complexes can be immobilized on a substrate. The complexes of the invention are useful as tunable and highly robust isolated metal colloids that find use in binding of molecules and catalysis of chemical reactions.

公开(公告)号：US20230279301A1

公开(公告)日：2023-09-07

申请号：US17683990

申请日：2022-03-01

Applicant: CHEVRON U.S.A. INC.

Inventor： Lin LI ,  Huping Luo ,  Xiaoying Ouyang ,  Alexander Kuperman

IPC: C10G50/00 ,  C10G47/34

CPC classification number: C10G50/00 ,  C10G47/34 ,  C10G2400/20 ,  C10G2400/22 ,  C10G2400/30 ,  C10G2300/1025

Abstract: The present disclosure refers to systems and methods for efficiently converting a C1-C3 alkane such as natural gas to a liquid C2-C10 product and hydrogen. Generally, the process comprises flowing the C1-C3 alkane through a plurality of tubes within a vessel wherein the tubes house a catalyst for converting the C1-C3 alkane to the liquid C2-C10 product and hydrogen. The C1-C3 alkane is heated under suitable conditions to produce the liquid C2-C10 product and hydrogen. Advantageously, the C1-C3 alkane is heated by burning a fuel outside the tubes in fuel burning nozzles configured to transfer heat from the burning through the tubes.