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公开(公告)号:US11708277B2
公开(公告)日:2023-07-25
申请号:US17372660
申请日:2021-07-12
Applicant: CHEVRON U.S.A. INC.
Inventor: Stacey Ian Zones
IPC: C01B39/48
CPC classification number: C01B39/48
Abstract: A method is described for the synthesis of aluminosilicate CHA framework type molecular sieves at ambient pressure via interzeolite conversion from FAU framework type zeolites.
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公开(公告)号:US11554344B2
公开(公告)日:2023-01-17
申请号:US17524892
申请日:2021-11-12
Applicant: CHEVRON U.S.A. INC.
Inventor: Joshua A. Thompson , Dan Xie , Joel Edward Schmidt , Stacey Ian Zones
IPC: B01D53/047 , C07C7/13 , B01J20/18 , C07C7/00
Abstract: The present invention and embodiments thereof provide a process to separate ethylene products from impurities such as nitrogen, hydrogen, ethane, propane and isobutane without the need for distillation processes.
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公开(公告)号:US10512904B2
公开(公告)日:2019-12-24
申请号:US15602797
申请日:2017-05-23
Inventor: Trenton Otto , Enrique Iglesia , Stacey Ian Zones
IPC: B01D53/86 , B01J23/42 , B01J23/44 , B01J23/52 , B01J29/74 , B01J35/00 , B01J37/00 , B01J37/04 , B01J37/10 , B01J37/14 , B01J37/18 , C07C1/20
Abstract: Zeolites having highly dispersed bimetallic clusters, uniformly distributed in size and composition, encapsulated therein are disclosed. Metal encapsulation and alloying is conferred by introducing ligated metal cation precursors into zeolite synthesis gels, which are subsequently crystallized hydrothermally to form zeolites with metal cations occluded in the pores. The ligated cations are anchored to the zeolite framework via siloxane bridges which enforces their uniform dispersion throughout the zeolite crystals. Treatment of the crystallized zeolites in O2 and then H2 forms bimetallic clusters, which remain narrowly distributed in size and composition.
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公开(公告)号:US10112839B2
公开(公告)日:2018-10-30
申请号:US15716786
申请日:2017-09-27
Applicant: Chevron U.S.A. Inc.
Inventor: Stacey Ian Zones
Abstract: A method is disclosed for preparing molecular sieve SSZ-85 in the absence of a source of fluoride ions.
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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.
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6.
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.
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公开(公告)号:US20170305752A1
公开(公告)日:2017-10-26
申请号:US15649032
申请日:2017-07-13
Applicant: Chevron U.S.A. Inc.
Inventor: Stacey Ian Zones
IPC: C01B39/04 , C01B39/26 , C01B39/12 , C01B39/00 , C01B37/02 , B01J29/86 , B01J20/18 , B01J29/70 , B01J29/18 , B01J29/04 , B01J20/30 , C01B39/48 , B01J39/14
CPC classification number: C01B39/04 , B01J20/18 , B01J20/3057 , B01J29/041 , B01J29/047 , B01J29/18 , B01J29/70 , B01J29/86 , B01J39/14 , C01B37/02 , C01B39/00 , C01B39/12 , C01B39/265 , C01B39/48
Abstract: Crystalline molecular sieves and their synthesis using quaternary N-methyl-diisoalkylammonium cations as organic structure directing agents are disclosed. The structure directing agent has the following structure (1): in which R1 is selected from hydrogen, a methyl group, an ethyl group, a propyl group, and a hydroxymethyl group; and R2, R3, R4 and R5 are independently selected from a methyl group, an ethyl group, and a propyl group.
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公开(公告)号:US20170233260A1
公开(公告)日:2017-08-17
申请号:US15585245
申请日:2017-05-03
Applicant: Chevron U.S.A. Inc.
Inventor: Dan Xie , Stacey Ian Zones
IPC: C01B39/48 , B01J37/04 , B01J37/10 , F01N3/04 , B01J37/08 , B01D53/02 , B01D53/94 , B01J29/74 , B01J37/00
CPC classification number: C01B39/48 , B01D53/02 , B01D53/228 , B01D53/44 , B01D53/565 , B01D53/62 , B01D53/9413 , B01D53/9445 , B01D53/945 , B01D71/028 , B01D2253/1085 , B01D2255/102 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/1026 , B01D2255/2063 , B01D2255/2073 , B01D2255/20738 , B01D2255/20746 , B01D2255/20753 , B01D2255/20761 , B01D2255/20784 , B01D2255/20792 , B01D2255/50 , B01D2256/245 , B01D2257/404 , B01D2257/504 , B01D2257/702 , B01J29/18 , B01J29/70 , B01J29/7049 , B01J29/74 , B01J29/76 , B01J29/78 , B01J29/80 , B01J35/065 , B01J37/0018 , B01J37/0246 , B01J37/04 , B01J37/082 , B01J37/10 , C01P2002/70 , C01P2002/72 , C01P2002/74 , C07C1/20 , C07C209/16 , C07C211/04 , C07C2529/70 , C10G3/49 , C10G11/05 , C10G49/08 , C10G2300/1011 , F01N3/043 , Y02A50/2324 , Y02C10/08 , Y02C10/10 , Y02P20/152 , Y02P30/42 , Y02T10/22 , C07C9/06 , C07C9/08 , C07C9/10
Abstract: Uses are disclosed for a new crystalline molecular sieve designated SSZ-102 synthesized using an N,N′-dimethyl-1,4-diazabicyclo[2.2.2]octane dication as a structure directing agent. SSZ-102 has ESV framework topology.
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9.
公开(公告)号:US09687830B2
公开(公告)日:2017-06-27
申请号:US14847845
申请日:2015-09-08
Inventor: Xiaoying Ouyang , Stacey Ian Zones , Alexander S. Katz
IPC: B01J29/86 , C07D313/10
CPC classification number: B01J29/86 , B01J2229/183 , C07D313/10
Abstract: Provided is a process of conducting a Baeyer-Villiger oxidation which comprises contacting a ketone and an oxidant in the presence of an Sn-DZ-1 catalyst to thereby oxidize the ketone to an ester. The Sn-DZ-1 catalyst comprises Sn heteroatoms on the external surface of the zeolitic material lattice framework, and B heteroatoms, or silanols created from boron hydrolysis, throughout the remainder of the lattice framework.
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公开(公告)号:US11865524B2
公开(公告)日:2024-01-09
申请号:US17531242
申请日:2021-11-19
Applicant: Chevron U.S.A. Inc.
Inventor: Stacey Ian Zones , Dan Xie , Cong-Yan Chen
CPC classification number: B01J29/047 , B01J37/082 , C01B39/48 , C01P2002/72
Abstract: A novel synthetic crystalline aluminogermanosilicate molecular sieve material, designated SSZ-117x, is provided. SSZ-117x can be synthesized using N,N,N,3,5-pentamethyladamantan-1-ammonium cations as a structure directing agent. SSZ-117x may be used in organic compound conversion reactions and/or sorptive processes.
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