公开(公告)号：US11638909B2

公开(公告)日：2023-05-02

申请号：US17877626

申请日：2022-07-29

Applicant: Chevron U.S.A. Inc.

Inventor： Joshua Allen Thompson ,  Dan Xie

IPC: B01D53/04 ,  B01J20/18 ,  C01B32/50 ,  B01D53/047 ,  B01D53/22 ,  B01D71/02 ,  B01J20/28 ,  B01J20/30 ,  C01B39/02 ,  C01B39/46 ,  C10L3/10 ,  B01D69/14

Abstract: The present disclosure is directed to processes for the selective separation of carbon dioxide (CO2) from multi-component feedstreams containing CO2. The processes use a potassium-form MER framework type zeolite having a stick-like morphology. The potassium is present in the zeolite as K+ in extra-framework locations, and the zeolite is essentially free of an extra-framework cation other than potassium.

公开(公告)号：US11638908B2

公开(公告)日：2023-05-02

申请号：US17877593

申请日：2022-07-29

Applicant: Chevron U.S.A. Inc.

Inventor： Dan Xie

IPC: B01J20/18 ,  B01D53/04 ,  C01B32/50 ,  B01D53/047 ,  B01D53/22 ,  B01D71/02 ,  B01J20/28 ,  B01J20/30 ,  C01B39/02 ,  C01B39/46 ,  C10L3/10 ,  B01D69/14

Abstract: The present disclosure is directed to a potassium-form MER framework type zeolite, a MER framework type zeolite having a stick-like morphology, wherein the potassium is present as K+ in extra-framework locations. The zeolite is essentially free of an extra-framework cation other than potassium.

公开(公告)号：US11634970B2

公开(公告)日：2023-04-25

申请号：US16774708

申请日：2020-01-28

Applicant: Chevron U.S.A. Inc.

Inventor： Antonio C. F. Critsinelis ,  Sid Mebarkia ,  Michelle A. Wise ,  Yesudas J. Manimala ,  William C. Hughes ,  Steven W. Cochran ,  Edgar Uribe ,  Jason D. Garcia

IPC: E21B36/00 ,  F16L59/14 ,  E21B43/01

Abstract: Disclosed are systems and methods for thermal management of subsea conduits such as jumpers that provide the ability to alternate between cooling and heat retention of production fluids within the conduit as needed depending on the phase of operation. Adjustable insulation elements are provided on the conduits so that convective heat transfer between surrounding seawater and the conduit can be allowed or reduced. A control system can activate an alarm indicating the need to adjust the insulation depending on the temperature and/or flow rate of fluids in the conduit. Conventional conduits can be retrofitted by adding adjustable insulation elements to enable thermal management.

公开(公告)号：US11628429B2

公开(公告)日：2023-04-18

申请号：US17315431

申请日：2021-05-10

Applicant: CHEVRON U.S.A. INC.

Inventor： Dan Xie

IPC: B01J29/70 ,  C01B39/48 ,  B01J37/04 ,  B01J37/06 ,  B01J37/10 ,  B01J35/10 ,  B01J37/00

Abstract: An aluminum-rich molecular sieve material of MFS framework type, designated SSZ-123, is provided. SSZ-123 can be synthesized using 1-ethyl-1-[5-(triethylammonio)pentyl]piperidinium cations as a structure directing agent. SSZ-123 may be used in organic compound conversion and/or sorptive processes.

公开(公告)号：US20230094207A1

公开(公告)日：2023-03-30

申请号：US18051000

申请日：2022-10-30

Applicant: Chevron U.S.A. Inc.

Inventor： Hye-Kyung Timken

IPC: C10G1/10 ,  C07C4/04 ,  C07C2/30 ,  C10G73/02 ,  C08F10/02 ,  C10B53/07 ,  C10G1/00

Abstract: Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization or for normal alpha olefins. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and then passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a naphtha/diesel fraction, a heavy fraction, and char. The naphtha/diesel fraction is passed to a crude unit in a refinery from which is recovered a straight run naphtha fraction (C5-C8) or a propane/butane (C3-C4) fraction. The straight run naphtha fraction, or propane and butane (C3-C4) fraction, is passed to a steam cracker for ethylene production. The ethylene is converted to normal alpha olefin and/or polyethylene. Also, a heavy fraction from the pyrolysis reactor can be combined with a heavy fraction of normal alpha olefin stream recovered from the steam cracker. The combined heavy fraction and heavy fraction of normal alpha olefin stream can be passed to a wax hydrogenation zone to produce wax.

公开(公告)号：US20230085274A1

公开(公告)日：2023-03-16

申请号：US17868884

申请日：2022-07-20

Applicant: CHEVRON U.S.A. INC.

Inventor： Tengfei LIU ,  Joel Edward SCHMIDT ,  Richard GROVE ,  Hye-Kyung Cho TIMKEN

IPC: C10G3/00 ,  C10G11/18 ,  C10L1/06

Abstract: A process is provided for producing a liquid hydrocarbon material suitable for use as a fuel or as a blending component in a fuel. The process includes co-processing a pyrolysis oil derived from a waste plastic raw material and a biorenewable feedstock comprising triglycerides in a catalytic cracking process in a presence of a solid catalyst at catalytic cracking conditions to provide a cracking product. The cracking product may be fractionated to provide at least one of a gasoline fraction and a middle distillate fraction.

公开(公告)号：US20230068274A1

公开(公告)日：2023-03-02

申请号：US17895859

申请日：2022-08-25

Applicant: Chevron U.S.A. Inc.

Inventor： Jay Patrick Painter

IPC: E21B33/04

Abstract: A sleeve for protecting a lockdown screw of a wellhead assembly can include a body having an inner surface and an outer surface, wherein the body has a concave curvature, where the body is configured to be disposed within an upper portion of a recess of a component of the wellhead assembly inside of which the lockdown screw is disposed, where the concave curvature of the body is configured to match that of an inner wall of the component, and where the outer surface is configured to isolate the lockdown screw from an environment in a cavity partially formed by the inner surface when the body is disposed in the upper portion of the recess.

公开(公告)号：US11593575B2

公开(公告)日：2023-02-28

申请号：US17649124

申请日：2022-01-27

Applicant: Chevron U.S.A. Inc.

Inventor： Sara Regina Portilla Wanderley

IPC: H04N5/44 ,  G06K7/10 ,  G06K19/07 ,  G08B5/36 ,  H04B17/318 ,  G08B3/10

Abstract: A computing system can include a radio transceiver and tracking manager software for tracking the location of objects such as tools. Radio frequency identification tags are attached to the objects and can communicate with the radio transceiver. During an initial registration process, the tracking manager software sends an initial registration signal to each object so that the object can be identified in a registered objects file. In one instance, the tracking manager software subsequently sends periodic interrogation signals to the objects to confirm that the objects are within a certain proximity. In another instance, after completing a task a worker can check-in each object wherein the tracking manager software sends interrogation signals to the objects to confirm that all of the objects are accounted for.

公开(公告)号：US11591231B2

公开(公告)日：2023-02-28

申请号：US17358472

申请日：2021-06-25

Applicant: CHEVRON U.S.A. INC.

Inventor： Joel Edward Schmidt ,  Adeola Florence Ojo ,  Cong-Yan Chen

IPC: B01J29/70 ,  B01J29/74 ,  C01B39/46

Abstract: An organotemplate-free synthetic process for the production of a zeolite of TON framework type structure is provided. The process includes the steps of: (1) preparing a mixture comprising: (a) an alumina-coated silica; (b) a source of an alkali metal; (c) an alcohol; (d) a source of hydroxide ions; (e) seed crystals comprising a zeolitic material having a TON framework type structure; and (f) water; and (2) crystallizing the mixture obtained in step (1).

公开(公告)号：US20230059298A1

公开(公告)日：2023-02-23

申请号：US17820537

申请日：2022-08-17

Applicant: CHEVRON U.S.A. INC.

Inventor： Michael Jon Beerman

IPC: G01M99/00

Abstract: Cavitation detection systems and methods may include receiving sensor data from one or more data sources; translating a first format of the sensor data to a second format of the sensor data; transmitting the second format of the sensor data; receiving one or more requests for the second format of the sensor data; transmitting one or more responses that are responsive to the one or more requests; and triggering one or more actions based on the one or more responses.