公开(公告)号：US09610534B1

公开(公告)日：2017-04-04

申请号：US14849657

申请日：2015-09-10

Applicant: Chevron U.S.A. Inc.

Inventor： Joshua Allen Thompson

IPC: B01D53/047 ,  B01J20/18

CPC classification number: B01D53/0476 ,  B01D53/0423 ,  B01D53/047 ,  B01D2253/108 ,  B01D2253/1085 ,  B01D2256/24 ,  B01D2256/245 ,  B01D2257/304 ,  B01D2257/504 ,  B01D2259/40018 ,  B01D2259/4003 ,  B01D2259/40037 ,  B01D2259/40041 ,  B01D2259/40043 ,  B01D2259/40049 ,  B01D2259/40052 ,  B01D2259/40075 ,  B01D2259/404 ,  B01D2259/41 ,  B01J20/18 ,  C10L3/102 ,  C10L3/104 ,  C10L2290/542 ,  Y02C10/08

Abstract: Disclosed are methods for removing acid gas from a feed stream of natural gas including acid gas, methane and ethane. The methods include alternating input of the feed stream between at least two beds of adsorbent particles comprising zeolite SSZ-13 such that the feed stream contacts one of the at least two beds at a given time in an adsorption step and a tail gas stream is simultaneously vented from another of the at least two beds in a desorption step. The contact occurs at a feed pressure of from about 50 to about 1000 psia for a sufficient period of time to preferentially adsorb acid gas from the feed stream. A product gas stream is produced containing no greater than about 2 mol % carbon dioxide and at least about 65 mol % of methane recovered from the feed stream and at least about 25 mol % of ethane recovered from the feed stream. The feed stream is input at a feed end of each bed. The product gas stream is removed from a product end of each bed. The tail gas stream is vented from the feed end of each bed. The methods require lower vacuum power consumption and allow improved hydrocarbon recoveries compared with known methods.

公开(公告)号：US20210060477A1

公开(公告)日：2021-03-04

申请号：US16556382

申请日：2019-08-30

Applicant: Chevron U.S.A. Inc.

Inventor： Joshua Allen Thompson

IPC: B01D53/053 ,  C10L3/10

Abstract: Disclosed are methods for removing acid gas from a feed stream of natural gas including acid gas, methane and ethane. The methods include alternating input of the feed stream between at least two beds of adsorbent particles comprising zeolite SSZ-13 such that the feed stream contacts one of the at least two beds at a given time in an adsorption step and a tail gas stream is simultaneously vented from another of the at least two beds in a desorption step. The contact occurs at a feed pressure of from about 50 to about 1000 psia for a sufficient period of time to preferentially adsorb acid gas from the feed stream. A product gas stream is produced containing no greater than about 2 mol % carbon dioxide and at least about 65 mol % of methane recovered from the feed stream and at least about 25 mol % of ethane recovered from the feed stream. The feed stream is input at a feed end of each bed. The product gas stream is removed from a product end of each bed. The tail gas stream is vented from the feed end of each bed. The methods require lower vacuum power consumption and allow improved hydrocarbon recoveries compared with known methods.

公开(公告)号：US20170158976A1

公开(公告)日：2017-06-08

申请号：US14961969

申请日：2015-12-08

Applicant: Chevron U.S.A. Inc.

Inventor： Dennis John O'Rear ,  Joshua Allen Thompson ,  Cedrick Mahieux

IPC: C10L3/10 ,  E21B43/34 ,  B01D11/04 ,  C10G29/12 ,  C10G29/16

CPC classification number: C10L3/101 ,  B01D11/0492 ,  C01B17/20 ,  C01B19/005 ,  C01G1/12 ,  C01G3/12 ,  C01G19/00 ,  C01G39/06 ,  C01G49/12 ,  C09K8/52 ,  C09K2208/22 ,  C10G29/12 ,  C10G29/16 ,  C10L3/107 ,  C10L2230/02 ,  C10L2230/14 ,  C10L2290/141 ,  C10L2290/542 ,  E21B21/068 ,  E21B43/34

Abstract: A sulfidic complexing agent is disclosed that includes a suspension or a solution formed by a reaction between a water-soluble metal compound and a water-soluble sulfidic compound. The sulfidic complexing agent has a pH of from about 5 to about 11 and a molar ratio of metal to sulfur of from about 0.1 to about 1,000. The sulfidic complexing agent is useful for removing elemental mercury from a hydrocarbon fluid by contacting the hydrocarbon fluid with the sulfidic complexing agent. The molar ratio of sulfur in the sulfidic complexing agent to mercury in the hydrocarbon fluid is from about 50 to about 2,500. Also disclosed is a method for concurrently transporting and removing a trace amount of volatile mercury in a CO2-containing natural gas stream extracted from a subterranean formation. The natural gas stream is transported in a pipeline into which the sulfidic complexing agent is injected. Also disclosed is a method for capturing gas phase elemental mercury from a gas stream in the overhead section of a crude oil distillation unit by contacting the gas stream with the sulfidic complexing agent in the overhead section of the distillation unit to form a treated gas stream.

公开(公告)号：US20210039065A1

公开(公告)日：2021-02-11

申请号：US16833841

申请日：2020-03-30

Applicant: Chevron U.S.A. Inc.

Inventor： Joshua Allen Thompson ,  Dan Xie

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

Abstract: The present disclosure is directed to a method for making a MER framework type zeolite, a MER framework type zeolite having a stick-like morphology, and processes for the selective separation of carbon dioxide (CO2) from multi-component feedstreams containing CO2 using the zeolite.

公开(公告)号：US20170354951A1

公开(公告)日：2017-12-14

申请号：US15618821

申请日：2017-06-09

Applicant: Chevron U.S.A. Inc.

Inventor： Dennis John O'Rear ,  Joshua Allen Thompson

IPC: B01J20/28 ,  B01J20/18 ,  B01J20/02 ,  C10L3/10 ,  B01J20/22 ,  B01J20/32 ,  B01J20/20 ,  B01D53/02

CPC classification number: B01J20/28011 ,  B01D53/025 ,  B01D53/64 ,  B01D2253/10 ,  B01D2253/102 ,  B01D2253/108 ,  B01D2253/1128 ,  B01D2253/25 ,  B01D2253/311 ,  B01D2255/20761 ,  B01D2256/245 ,  B01D2257/602 ,  B01J20/0237 ,  B01J20/0285 ,  B01J20/16 ,  B01J20/18 ,  B01J20/20 ,  B01J20/22 ,  B01J20/3204 ,  B01J20/3236 ,  B01J20/3287 ,  C10L3/101 ,  C10L2290/542

Abstract: A hydrophobic adsorbent composition and process for removal of mercury from a gas phase fluid near the water and/or hydrocarbon dew point is disclosed herein.

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：US20220387965A1

公开(公告)日：2022-12-08

申请号：US17877626

申请日：2022-07-29

Applicant: Chevron U.S.A. Inc.

Inventor： Joshua Allen Thompson ,  Dan Xie

IPC: B01J20/18 ,  C01B32/50 ,  B01J20/28 ,  C10L3/10 ,  B01J20/30 ,  C01B39/46 ,  C01B39/02 ,  B01D53/047 ,  B01D53/22 ,  B01D71/02 ,  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：US10569213B2

公开(公告)日：2020-02-25

申请号：US15883406

申请日：2018-01-30

Applicant: Chevron U.S.A. Inc.

Inventor： Joshua Allen Thompson ,  Dan Xie

IPC: B01D53/047 ,  B01J20/18 ,  B01D53/02 ,  B01J29/50 ,  B01J29/70 ,  B01J29/80 ,  C10G25/03

Abstract: A method for removing acid gas from feed gas, comprising:alternating input of feed gas between beds of adsorbent particles that comprise zeolite SSZ-98 or SSZ-105; wherein gas contacts one of the beds during an adsorption and tail gas is vented from another bed by desorption; wherein a product gas containing no greater than about 2 Mol % carbon dioxide is produced, and methane and ethane are recovered. A method for removing acid gas, wherein the product gas contains 1 wppm H2S or less. A process for removing acid gas from feed gas, comprising adjusting selectivity of an adsorbent by changing a substitution of ERI phase with LEV phase in an intergrown molecular sieve. A process for removing acid gas from a feed gas, comprising: contacting a feed gas with adsorbent comprising a molecular sieve having a defined intergrowth of an ERI phase and a LEV phase.

公开(公告)号：US10092875B2

公开(公告)日：2018-10-09

申请号：US15408533

申请日：2017-01-18

Applicant: Chevron U.S.A. Inc.

Inventor： Joshua Allen Thompson ,  Tracy Margaret Davis ,  Dan Xie ,  Stacey Ian Zones

IPC: B01D53/047 ,  B01D53/04

Abstract: We provide a method for removing contaminants from a gas, comprising: alternating input of the gas between two or more beds of adsorbent particles that comprise zeolite SSZ-36, zeolite SSZ-39, or zeolite SSZ-45; wherein the gas contacts one of the beds during an adsorption and a tail gas is simultaneously vented from another of the beds by desorption; wherein a contacting pressure is from about 345 kPa to about 6895 kPa and produces a product gas containing no greater than about 2 mol % carbon dioxide, at least about 10 wppm water, at least about 65 mol % of methane recovered from the feed gas, and at least about 25 mol % of ethane recovered from the feed gas; and wherein the tail gas is vented from the feed end of the beds. We also provide a method for removing a contaminant from a gas, wherein the gas contains hydrogen sulfide.

公开(公告)号：US20180257019A1

公开(公告)日：2018-09-13

申请号：US15883406

申请日：2018-01-30

Applicant: Chevron U.S.A. Inc.

Inventor： Joshua Allen Thompson ,  Dan Xie

IPC: B01D53/02 ,  C10G25/03 ,  B01J29/80 ,  B01J29/50 ,  B01J29/70

Abstract: A method for removing acid gas from feed gas, comprising: alternating input of feed gas between beds of adsorbent particles that comprise zeolite SSZ-98 or SSZ-105; wherein gas contacts one of the beds during an adsorption and tail gas is vented from another bed by desorption; wherein a product gas containing no greater than about 2 Mol % carbon dioxide is produced, and methane and ethane are recovered. A method for removing acid gas, wherein the product gas contains 1 wppm H2S or less. A process for removing acid gas from feed gas, comprising adjusting selectivity of an adsorbent by changing a substitution of ERI phase with LEV phase in an intergrown molecular sieve. A process for removing acid gas from a feed gas, comprising: contacting a feed gas with adsorbent comprising a molecular sieve having a defined intergrowth of an ERI phase and a LEV phase.