公开(公告)号：US20250145894A1

公开(公告)日：2025-05-08

申请号：US18500668

申请日：2023-11-02

Applicant: Chevron U.S.A. Inc.

Inventor： Lin Li ,  Huping Luo ,  Xiaoying Ouyang ,  Alexander E. Kuperman ,  Steven Xuqi Song ,  Christopher Declan Lane

IPC: C10G11/16

Abstract: A process includes flowing a catalyst composition comprising catalyst particles into a radial flow moving bed reactor, wherein the catalyst particles move by gravity through the radial flow moving bed reactor to an exit point of the radial flow moving bed reactor, wherein the catalyst particles form a moving catalyst bed in the radial flow moving bed reactor, flowing a light hydrocarbon feed stream comprising C1 to C3 alkanes into the radial flow moving bed reactor in a manner so that the light hydrocarbon feed stream flows radially inward or radially outward through the moving catalyst bed and thereby contacts the catalyst particles under reaction conditions to produce a product effluent stream comprising a C2 to C10 hydrocarbon product and hydrogen, and flowing the product effluent stream from the radial flow moving bed reactor.

公开(公告)号：US20250066271A1

公开(公告)日：2025-02-27

申请号：US18237157

申请日：2023-08-23

Applicant: Chevron U.S.A. Inc

Inventor： Christopher Declan Lane ,  Steven Xuqi Song ,  Bi-Zeng Zhan ,  Trenton J. Otto ,  Michael J. Girgis ,  Yaofan Yi

IPC: C07C5/367 ,  C07C7/04

Abstract: Methods for dehydrogenation of perhydro-benzyltoluene are described. The representative two stage reaction processes described herein provide cost-effective high amount of conversion to hydrogen and/or other beneficial products.

公开(公告)号：US20250059035A1

公开(公告)日：2025-02-20

申请号：US18234017

申请日：2023-08-15

Applicant: Chevron U.S.A. Inc.

Inventor： Howard Steven Lacheen ,  Christopher Declan Lane

IPC: C01B3/48 ,  B01D53/047 ,  B01J19/00 ,  B01J19/24 ,  C01B3/56 ,  C01B32/50 ,  F25J1/00 ,  F25J1/02

Abstract: A method for converting carbon dioxide gas to liquefied carbon dioxide includes (a) receiving, in a heat exchanger, a carbon dioxide gas stream and a liquefied natural gas stream, and (b) exposing the carbon dioxide gas stream to the liquefied natural gas stream to convert the carbon dioxide gas stream to liquefied carbon dioxide, and the liquefied natural gas stream is regasified to natural gas. The natural gas exits the heat exchanger and is sent to a steam methane reformer for further processing.

公开(公告)号：US20250163334A1

公开(公告)日：2025-05-22

申请号：US18826721

申请日：2024-09-06

Applicant: Chevron U.S.A. Inc.

Inventor： Huping Luo ,  Xiaoying Ouyang ,  Christopher Declan Lane

IPC: C10G11/18 ,  B01J8/38 ,  B01J38/30

Abstract: A fluidized bed reactor system including a fluidized bed reactor configured to receive a heated light hydrocarbon feed stream flowing upwards and a heated regenerated catalyst at a temperature sufficient to crack the heated light hydrocarbon feed stream to produce a product effluent stream containing hydrogen and spent catalyst having coke deposits, a catalyst regeneration unit operatively connected to a bottom portion of the fluidized bed reactor, the catalyst regeneration unit being configured to receive the spent catalyst flowing downwards and combust the coke deposits to produce the heated regenerated catalyst and a heated gas effluent for generating the heated light hydrocarbon feed stream, and a riser externally attached to the fluidized bed reactor and the catalyst regeneration unit, the riser being configured to receive the heated regenerated catalyst and a gas-based stream to flow the heated regenerated catalyst upwards to the fluidized bed reactor.

公开(公告)号：US12281064B2

公开(公告)日：2025-04-22

申请号：US18237157

申请日：2023-08-23

Applicant: CHEVRON U.S.A. INC.

Inventor： Christopher Declan Lane ,  Steven Xuqi Song ,  Bi-Zeng Zhan ,  Trenton J. Otto ,  Michael J. Girgis ,  Yaofan Yi

IPC: C07C5/367 ,  C07C7/04

Abstract: Methods for dehydrogenation of perhydro-benzyltoluene are described. The representative two stage reaction processes described herein provide cost-effective high amount of conversion to hydrogen and/or other beneficial products.

公开(公告)号：US20250065311A1

公开(公告)日：2025-02-27

申请号：US18454048

申请日：2023-08-22

Applicant: Chevron U.S.A. Inc.

Inventor： Trenton J. Otto ,  Bi-Zeng Zhan ,  Steven Xuqi Song ,  Christopher Declan Lane

IPC: B01J27/045 ,  B01J23/10 ,  C01B3/00 ,  C07C5/10

Abstract: This disclosure pertains to a supported noble metal catalyst containing noble metal component and a sulfur-containing component being supported on a non-noble metal doped inorganic oxide carrier and uses thereof. The catalyst may be used for the hydrogenation of an aromatic compound. The present disclosure further relates to a process for the partial or complete dehydrogenation of perhydrogenated or partially hydrogenated cyclic hydrocarbons to produce hydrogen.