公开(公告)号：US20220266227A1

公开(公告)日：2022-08-25

申请号：US17568778

申请日：2022-01-05

Applicant: CHEVRON U.S.A. INC.

Inventor： Xiaoying OUYANG ,  Alexander E. KUPERMAN

IPC: B01J23/888 ,  B01J35/10 ,  B01J35/00 ,  B01J37/20 ,  B01J37/08 ,  B01J37/00

Abstract: Multi-metallic bulk catalysts and methods for synthesizing the same are provided. The multi-metallic bulk catalysts contain nickel, molybdenum tungsten, copper, and optionally, titanium and/or niobium. The catalysts are useful for hydroprocessing, particularly hydrodesulfurization and hydrodenitrogenation, of hydrocarbon feedstocks.

公开(公告)号：US20210339232A1

公开(公告)日：2021-11-04

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

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：US20240189801A1

公开(公告)日：2024-06-13

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: B01J23/89 ,  B01J35/31 ,  B01J35/61 ,  B01J35/63 ,  B01J37/00 ,  B01J37/03 ,  B01J37/04 ,  B01J37/08 ,  B01J37/20 ,  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：US20240166578A1

公开(公告)日：2024-05-23

申请号：US18221806

申请日：2023-07-13

Applicant: CHEVRON U.S.A. INC.

Inventor： Xiaoying OUYANG ,  Alexander E. Kuperman ,  Huping Luo

IPC: C07C2/76 ,  B01J21/08 ,  B01J35/00 ,  B01J35/02 ,  C01B3/26

CPC classification number: C07C2/76 ,  B01J21/08 ,  B01J35/0013 ,  B01J35/023 ,  C01B3/26 ,  C01B2203/1241 ,  C07C2521/08

Abstract: The present application pertains to a methane dehydrogenation process subjecting a methane feed to a novel SiO2 catalyst under dehydrogenation conditions and producing hydrogen, ethylene, an aromatic, or any mixture thereof. In another embodiment, the present application pertains to a novel catalyst for methane dehydrogenation. The catalyst comprises amorphous particles of SiO2. The amorphous particles have a particle size with a nominal diameter of from about 5 nm to 1 cm. The amorphous particles of SiO2 comprise a Lewis acidity sufficient to activate one or more C—H bonds in methane and generate one or more methyl radicals when the catalyst is subjected to methane dehydrogenation conditions. In another embodiment, the present application pertains to method of making the novel catalyst for methane dehydrogenation.

公开(公告)号：US20220401931A1

公开(公告)日：2022-12-22

申请号：US17736169

申请日：2022-05-04

Applicant: CHEVRON U.S.A. INC.

Inventor： Xiaoying OUYANG ,  Alexander E. KUPERMAN

IPC: B01J27/051 ,  C10G47/06 ,  B01J37/02 ,  B01J37/20

Abstract: Multi-metallic bulk catalysts and methods for synthesizing the same are provided. The multi-metallic bulk catalysts contain nickel, molybdenum tungsten, yttrium, and optionally, copper, titanium and/or niobium. The catalysts are useful for hydroprocessing, particularly hydrodesulfurization and hydrodenitrogenation, of hydrocarbon feedstocks.

公开(公告)号：US20220258138A1

公开(公告)日：2022-08-18

申请号：US17516929

申请日：2021-11-02

Applicant: CHEVRON U.S.A. INC.

Inventor： Xiaoying OUYANG ,  Alexander E. KUPERMAN

IPC: B01J23/888 ,  B01J23/00 ,  B01J31/04 ,  B01J37/04 ,  B01J37/08 ,  B01J37/20 ,  B01J37/03 ,  B01J37/00 ,  B01J35/10 ,  B01J35/00 ,  C10G47/02

Abstract: Multi-metallic bulk catalysts and methods for synthesizing the same are provided. The multi-metallic bulk catalysts contain nickel, molybdenum tungsten, niobium, and optionally, titanium and/or copper. The catalysts are useful for hydroprocessing, particularly hydrodesulfurization and hydrodenitrogenation, of hydrocarbon feedstocks.

公开(公告)号：US20190247838A1

公开(公告)日：2019-08-15

申请号：US16275945

申请日：2019-02-14

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

Inventor： Alexander KATZ ,  Alexander OKRUT ,  Martina AIGNER ,  Xiaoying OUYANG ,  Stacey Ian ZONES

IPC: B01J29/86 ,  C01B39/48 ,  C01B39/04 ,  B01J29/89

CPC classification number: B01J29/86 ,  B01J29/89 ,  B01J2229/22 ,  B01J2229/34 ,  C01B39/026 ,  C01B39/04 ,  C01B39/48 ,  C01P2002/72 ,  C01P2002/86

Abstract: Provided is a scalable delamination of a SSZ-70 framework zeolite, without the need for sonication, which has been previously made difficult by the charged nature of the imidazolium structure-directing agents that are required for zeolite synthesis. The method comprises contacting a B-SSZ-70 zeolite precursor with a zinc source such as zinc nitrate and a fluoride source.

公开(公告)号：US20250121361A1

公开(公告)日：2025-04-17

申请号：US18915198

申请日：2024-10-14

Applicant: CHEVRON U.S.A. INC.

Inventor： Xiaoying OUYANG ,  Alexander E. KUPERMAN ,  Huping LUO ,  Rahul S. BHADURI ,  Christopher LANE

IPC: B01J23/94 ,  B01J23/755 ,  C01B3/30

Abstract: Methods for regenerating spent catalysts, including spent catalysts used in in the catalytic conversion of a hydrocarbon feedstock. The method and associated processes comprising the method are useful to recover spent catalysts used in the petroleum and chemical processing industries. The method generally involves the use of an aqueous leaching solution to leach catalytically active metals from the spent catalyst so that solid carbon built up on the catalyst may be separated from the catalyst metals. The recovered catalyst metals, or a catalyst formed therefrom, may then be re-used in a catalytic conversion process.

公开(公告)号：US20230278859A1

公开(公告)日：2023-09-07

申请号：US17683964

申请日：2022-03-01

Applicant: CHEVRON U.S.A. INC.

Inventor： Huping LUO ,  Lin LI ,  Alexander KUPERMAN ,  Xiaoying OUYANG

IPC: C01B3/30 ,  B01J38/72 ,  B01J19/24

CPC classification number: C01B3/30 ,  B01J38/72 ,  B01J19/2445 ,  C01B2203/1011 ,  C01B2203/1241

Abstract: The present disclosure refers to systems and methods for producing hydrogen among other products. In some embodiments the methods comprise sequentially conducting a cracking step in a fixed bed mode and conducting a flowing step in a fluidized bed mode. Such sequential processes may result in a number of advantages including, for example, regenerating the catalyst during the fluidized bed mode in a manner such that beneficial heat is generated for use in the endothermic cracking step.

公开(公告)号：US20240010936A1

公开(公告)日：2024-01-11

申请号：US18372883

申请日：2023-09-26

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 ,  C10G2300/1025 ,  C10G2400/22 ,  C10G2400/30 ,  C10G2400/20

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.