公开(公告)号：US10597299B2

公开(公告)日：2020-03-24

申请号：US16193072

申请日：2018-11-16

Applicant: Chevron U.S.A. Inc.

Inventor： Dan Xie

IPC: C01B39/08 ,  C01B39/12 ,  C01B39/48 ,  B01J29/87 ,  B01J29/86 ,  B01J29/88 ,  B01J29/70

Abstract: A method is provided for synthesizing molecular sieves of ITE framework type using one or more of 1-ethyl-1,3,5-trimethylpiperidinium cations and 1-ethyl-1-methyldecahydroquinolinium cations a structure directing agent.

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：US10384950B1

公开(公告)日：2019-08-20

申请号：US15956963

申请日：2018-04-19

Applicant: Chevron U.S.A. Inc.

Inventor： Dan Xie

IPC: C01B39/48 ,  B01J29/70

Abstract: A molecular sieve having the framework structure of SSZ-35 is produced using 3,3′-(butane-1,4-diyl)bis(1-methyl-2-propyl-1H-imidazol-3-ium) dications as a structure directing agent.

公开(公告)号：US10384949B1

公开(公告)日：2019-08-20

申请号：US15950232

申请日：2018-04-11

Applicant: Chevron U.S.A. Inc.

Inventor： Dan Xie

IPC: C01B39/48 ,  B01J29/70

Abstract: A molecular sieve having the framework structure of SSZ-43 is produced using one or more of 3,3′-(butane-1,4-diyl)bis(1-methyl-2-propyl-1H-imidazol-3-ium) dications and N,N′-(1,4-phenylenebis(methylene))bis(N,N-diethylethaniminium) dications as a structure directing agent.

公开(公告)号：US10272423B2

公开(公告)日：2019-04-30

申请号：US15276890

申请日：2016-09-27

Applicant: Chevron U.S.A. Inc.

Inventor： Dan Xie ,  Christopher Michael Lew

IPC: B01D53/02 ,  C07C1/20 ,  C07C209/16 ,  B01J29/80 ,  B01J20/18 ,  C07C209/68 ,  B01D53/22 ,  C10G3/00 ,  B01J29/068 ,  B01J29/072 ,  B01J29/56 ,  B01J29/76 ,  B01D53/94

Abstract: Uses for a new crystalline molecular sieve designated SSZ-105 are disclosed. SSZ-105 is synthesized using N,N-dimethylpiperidinium cations as a structure directing agent. SSZ-105 is a disordered aluminosilicate molecular sieve comprising at least one intergrown phase of an ERI framework type molecular sieve and an LEV framework type molecular sieve.

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：US20180282171A1

公开(公告)日：2018-10-04

申请号：US15895207

申请日：2018-02-13

Applicant: Chevron U.S.A. Inc.

Inventor： Dan Xie

IPC: C01B39/48 ,  B01J29/50 ,  B01J37/04 ,  B01J37/10 ,  B01J37/00

CPC classification number: C01B39/48 ,  B01J29/50 ,  B01J37/0018 ,  B01J37/04 ,  B01J37/10 ,  C01B39/305

Abstract: A method is provided for the synthesis of a zeolite of the offretite structure using cyclopropyltrimethylammonium cations as a structure directing agent.

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.

公开(公告)号：US20180201514A1

公开(公告)日：2018-07-19

申请号：US15839966

申请日：2017-12-13

Applicant: Chevron U.S.A. Inc.

Inventor： Dan Xie

IPC: C01B39/48

CPC classification number: C01B39/48 ,  B01D53/8628 ,  B01D53/9418 ,  B01J29/70 ,  B01J29/72 ,  B01J29/74 ,  B01J29/76 ,  B01J29/78 ,  C01B39/026 ,  C01P2002/72

Abstract: A novel synthetic crystalline molecular sieve designated as SSZ-108 is disclosed. SSZ-108 may be synthesized using a structure directing agent comprising one or more of 1-butyl-1-methylpyrrolidinium cations and 1-butyl-1-methylpiperidinium cations. Molecular sieve SSZ-108 may be used in catalytic and sorptive processes.

公开(公告)号：US20180200662A1

公开(公告)日：2018-07-19

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

CPC classification number: B01D53/047 ,  B01D53/0423 ,  B01D2253/1085 ,  B01D2256/24 ,  B01D2256/245 ,  B01D2257/304 ,  B01D2257/308 ,  B01D2257/504 ,  B01D2257/80 ,  B01D2259/40028 ,  B01D2259/40041 ,  B01D2259/40045 ,  B01D2259/40052 ,  B01D2259/40069 ,  B01D2259/402 ,  B01D2259/404 ,  B01D2259/414

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.