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公开(公告)号：US12215288B2
公开(公告)日：2025-02-04
申请号：US17618381
申请日：2020-06-09
Applicant: CHEVRON U.S.A. INC. , GEORGIA TECH RESEARCH CORPORATION
Inventor： William Koros , Yang Liu , Zhongyun Liu , Nitesh Bhuwania , Daniel Chinn
Abstract: Disclosed is a method for removing hydrogen sulfide from natural gas. The method includes passing a natural gas feed including methane and hydrogen sulfide (H2S) through a membrane at normal operating conditions. The membrane is an asymmetric hollow fiber membrane or an asymmetric film composite membrane including a porous layer and a nonporous skin layer. The asymmetric hollow fiber membrane or the nonporous skin layer of the asymmetric film composite membrane plasticizes during the method by exposure to condensable gases with high critical temperature under the operating conditions. The membrane preferentially removes H2S over methane from the natural gas feed at a H2S/methane selectivity of from 7 to 40 when measured at 35° C. and 45 bar.
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公开(公告)号：US20240350969A1
公开(公告)日：2024-10-24
申请号：US18642583
申请日：2024-04-22
Applicant: Chevron U.S.A. Inc.
Inventor： Nitesh Bhuwania , Daniel Chinn , Raja Ankush Jadhav , Zihan Huang
CPC classification number: B01D53/228 , B01D71/06 , B01D2256/10 , B01D2256/12 , B01D2257/504 , B01D2258/01
Abstract: A process of preconcentrating CO2 in an exhaust gas stream includes flowing all the exhaust gas stream from an exhaust gas source to a CO2 preconcentration system. Within the CO2 preconcentration system, at least a portion of the exhaust gas stream is fed to a membrane separation module comprising a polymeric membrane that has a perm-selectivity for CO2 over N2 and O2, to produce a CO2 rich exhaust gas. The exhaust gas stream may initially have as low as 400 ppm CO2 and may be preconcentrated to over 8 vol. % CO2, thereby generating a more optimal feed for further treatment processes.
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13.发明申请公开(公告)号：US20190105601A1
公开(公告)日：2019-04-11
申请号：US15971748
申请日：2018-05-04
Applicant: Chevron U.S.A. Inc.
Inventor： Daniel Chinn , Nitesh Bhuwania , Shabbir Husain , Ronald P. MacDonald , Tapan K. Das
CPC classification number: B01D53/1468 , B01D2252/204 , B01D2256/24 , B01D2257/304 , C10L3/103 , C10L2290/46 , C10L2290/541 , C10L2290/548 , E21B43/34 , E21B43/40
Abstract: Disclosed are systems and methods for producing oil and gas while removing hydrogen sulfide from fluids produced from oil and gas reservoirs and injecting a sour gas stream containing the hydrogen sulfide into an underground formation. Hydrogen sulfide-selective membranes are used to debottleneck known systems and methods by removing hydrogen sulfide from bottlenecked plant process steps including sour gas compression, hydrogen sulfide removal and sour gas injection. Pressure ratio across the membranes can also be manipulated to provide further debottlenecking. Gas-gas eductors are also disclosed for use in leveraging relatively high-pressure streams to boost the pressure of low pressure streams. Oil production is thus increased.
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公开(公告)号：US10041014B2
公开(公告)日：2018-08-07
申请号：US15618730
申请日：2017-06-09
Applicant: Chevron U.S.A. Inc.
Inventor： Joshua Allen Thompson , Daniel Chinn , Evan Shigeto Hatakeyama , Ryan Oliver Owen
IPC: C10L3/06 , C10L3/10 , B01D53/14 , B01D53/64 , B01D53/78 , B01J20/02 , B01J20/08 , B01J20/10 , B01J20/12 , B01J20/18 , B01J20/20 , B01D53/26 , B01D53/77 , B01D53/96
Abstract: A process for removal of mercury in a gas dehydration system comprising (a) adding a complexing agent to a recirculated glycol solvent as part of the glycol solution feed prior to or at the dehydration liquid contactor and recirculating continuously with the glycol solvent, (b) selectively reacting the complexing agent with mercury in the wet natural gas to remove the mercury from the dry natural gas product, (c) and feeding the rich glycol with the complexing agent to a regenerator and continuously regenerating.
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公开(公告)号：US20170355920A1
公开(公告)日：2017-12-14
申请号：US15618730
申请日：2017-06-09
Applicant: Chevron U.S.A. Inc.
Inventor： Joshua Allen Thompson , Daniel Chinn , Evan Shigeto Hatakeyama , Ryan Oliver Owen
IPC: C10L3/10 , B01J20/18 , B01J20/10 , B01D53/14 , B01J20/12 , B01J20/20 , B01D53/64 , B01J20/08 , B01D53/78 , B01J20/02
CPC classification number: C10L3/101 , B01D53/1425 , B01D53/1493 , B01D53/263 , B01D53/64 , B01D53/77 , B01D53/78 , B01D53/96 , B01D2251/206 , B01D2251/304 , B01D2251/306 , B01D2251/404 , B01D2251/60 , B01D2251/80 , B01D2252/2023 , B01D2252/2025 , B01D2252/606 , B01D2252/608 , B01D2256/245 , B01D2257/602 , B01J20/0237 , B01J20/0285 , B01J20/08 , B01J20/103 , B01J20/12 , B01J20/18 , B01J20/20 , C10L3/106 , C10L2230/02 , C10L2290/542
Abstract: A process for removal of mercury in a gas dehydration system comprising (a) adding a complexing agent to a recirculated glycol solvent as part of the glycol solution feed prior to or at the dehydration liquid contactor and recirculating continuously with the glycol solvent, (b) selectively reacting the complexing agent with mercury in the wet natural gas to remove the mercury from the dry natural gas product, (c) and feeding the rich glycol with the complexing agent to a regenerator and continuously regenerating.
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Patent Agency Ranking
公开(公告)号：US09751044B2
公开(公告)日：2017-09-05
申请号：US14870318
申请日：2015-09-30
Applicant: Chevron U.S.A. Inc. , University of South Alabama
Inventor： Daniel Chinn , Rusell Evan Cooper , Zunqing He , James H. Davis, Jr. , Kevin N. West , Hye Kyung Timken , Michael S. Driver
IPC: B01D53/62 , B01D53/14 , B01D53/77 , B01D53/78 , B01D53/96 , B01J31/02 , C07C309/69 , C07C323/25
CPC classification number: B01D53/62 , B01D53/1475 , B01D53/1493 , B01D53/78 , B01D2252/204 , B01D2252/2056 , B01D2252/30 , B01D2252/502 , B01D2258/0283 , Y02C10/04 , Y02C10/06
Abstract: An aqueous ionic absorbent solution is disclosed containing (a) about 15 wt. % to about 80 wt. % of one or more diluents, based on the total weight of the aqueous ionic absorbent solution; and (b) an ionic absorbent containing a cation and an anion comprising an amine moiety.
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公开(公告)号：US09499749B2
公开(公告)日：2016-11-22
申请号：US14730676
申请日：2015-06-04
Applicant: Chevron U.S.A. Inc.
Inventor： Huping Luo , Zhen Zhou , Lin Li , Alice He , Daniel Chinn , Graham Forder , Lyman Young , Shabbir Husain , William Schinski
IPC: C10G29/00 , B01J29/14 , C10G17/00 , C10G17/06 , C10G21/06 , C10G21/12 , C10G21/16 , C10G21/20 , C10G29/04 , C10G45/02 , B01J8/00 , B01J19/24 , C10G29/20 , B01J27/16 , B01J29/08
CPC classification number: C10G29/00 , B01J8/00 , B01J19/24 , B01J27/16 , B01J29/084 , B01J29/146 , B01J2208/00796 , B01J2219/24 , C10G17/00 , C10G17/06 , C10G21/06 , C10G21/12 , C10G21/16 , C10G21/20 , C10G29/04 , C10G29/20 , C10G45/02 , C10G2300/1033 , C10G2300/202 , C10G2300/4006 , C10G2300/4093
Abstract: A crude oil which contains at least 0.1 wt % unstable sulfur compounds is treated in a reaction zone at low temperature to convert at least 50 wt % of the unstable sulfur compounds contained therein. The reaction and removal of sulfur from the crude may be facilitated by contacting the crude oil with a catalytic material in the presence of a stripping fluid.
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公开(公告)号：US20150267126A1
公开(公告)日：2015-09-24
申请号：US14730676
申请日：2015-06-04
Applicant: Chevron U.S.A. Inc.
Inventor： Huping Luo , Zhen Zhou , Lin Li , Alice He , Daniel Chinn , Graham Forder , Lyman Young , Shabbir Husain , William Schinski
CPC classification number: C10G29/00 , B01J8/00 , B01J19/24 , B01J27/16 , B01J29/084 , B01J29/146 , B01J2208/00796 , B01J2219/24 , C10G17/00 , C10G17/06 , C10G21/06 , C10G21/12 , C10G21/16 , C10G21/20 , C10G29/04 , C10G29/20 , C10G45/02 , C10G2300/1033 , C10G2300/202 , C10G2300/4006 , C10G2300/4093
Abstract: A crude oil which contains at least 0.1 wt % unstable sulfur compounds is treated in a reaction zone at low temperature to convert at least 50 wt % of the unstable sulfur compounds contained therein. The reaction and removal of sulfur from the crude may be facilitated by contacting the crude oil with a catalytic material in the presence of a stripping fluid.
Abstract translation: 含有至少0.1wt％不稳定的硫化合物的原油在低温下在反应区中处理，以转化至少50wt％的不稳定的硫化合物。 可以通过在汽提流体存在下使原油与催化材料接触来促进来自粗制物的硫的反应和除去。
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19.发明授权公开(公告)号：US10905996B2
公开(公告)日：2021-02-02
申请号：US15972256
申请日：2018-05-07
Applicant: Chevron U.S.A. Inc.
Inventor： Nitesh Bhuwania , Shabbir Husain , Daniel Chinn , Ronald P. MacDonald , Tapan K. Das
Abstract: Disclosed are systems and methods for producing oil and gas while removing hydrogen sulfide from fluids produced from oil and gas reservoirs. Hydrogen sulfide-selective membranes are used to remove hydrogen sulfide from bottlenecked plant process steps including hydrogen sulfide removal. In some embodiments of the present disclosure, plant processing efficiency is improved for processing of high temperature associated gas streams by using membranes while integrating heat from other existing process streams. In other embodiments of the present disclosure, plant processing efficiency is improved for processing of high temperature associated gas streams by using high temperature tolerant polymer membranes. Oil and/or gas production is increased.
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20.发明授权公开(公告)号：US10391444B2
公开(公告)日：2019-08-27
申请号：US15971748
申请日：2018-05-04
Applicant: Chevron U.S.A. Inc.
Inventor： Daniel Chinn , Nitesh Bhuwania , Shabbir Husain , Ronald P. MacDonald , Tapan K. Das
Abstract: Disclosed are systems and methods for producing oil and gas while removing hydrogen sulfide from fluids produced from oil and gas reservoirs and injecting a sour gas stream containing the hydrogen sulfide into an underground formation. Hydrogen sulfide-selective membranes are used to debottleneck known systems and methods by removing hydrogen sulfide from bottlenecked plant process steps including sour gas compression, hydrogen sulfide removal and sour gas injection. Pressure ratio across the membranes can also be manipulated to provide further debottlenecking. Gas-gas eductors are also disclosed for use in leveraging relatively high-pressure streams to boost the pressure of low pressure streams. Oil production is thus increased.
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