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：US20240262700A1

公开(公告)日：2024-08-08

申请号：US18432264

申请日：2024-02-05

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

Inventor： Alexander KATZ ,  Le XU ,  Alexander OKRUT ,  Alexander KUPERMAN

IPC: C01B39/02 ,  B01J29/08 ,  B01J37/02 ,  B01J37/08

CPC classification number: C01B39/026 ,  B01J29/084 ,  B01J37/0215 ,  B01J37/0236 ,  B01J37/08 ,  B01J2229/12 ,  B01J2229/32 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2006/17

Abstract: A selective postsynthetic surface modification process of mesoporous Y zeolite (Meso-Y) is provided. The process results in a thin silica, alumina or aluminosilicate overlayer on the external surface without causing significant pore blockage, which otherwise results in the absence of surfactant. The approach relies on occluded CTAB surfactant in as-synthesized Meso-Y acting as a soft template, which protects internal microporosity and mesoporosity during inorganic overlayer synthesis, by directing its deposition to selectively occur on the external surface. The process is conducted under dry conditions.

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：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：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.

公开(公告)号：US20230347324A1

公开(公告)日：2023-11-02

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: 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.