公开(公告)号：US11547986B2

公开(公告)日：2023-01-10

申请号：US17693503

申请日：2022-03-14

Applicant: CHEVRON U.S.A. INC.

Inventor： Stacey Ian Zones ,  Cong-Yan Chen

IPC: B01J29/04 ,  C01B39/48 ,  B01J35/02 ,  C07C4/06 ,  C07C5/22

Abstract: A method is disclosed for producing small crystal, high aluminum content zincoaluminosilicate crystalline materials having the SSZ-41 framework structure. The compositions made according to that method, as well as uses of the same, are also disclosed.

公开(公告)号：US20220306947A1

公开(公告)日：2022-09-29

申请号：US17686684

申请日：2022-03-04

Applicant: Chevron U.S.A. Inc.

Inventor： Michael Girgis ,  Stacey Ian Zones

IPC: C10G47/20 ,  C10G53/06

Abstract: Embodiments of the disclosure include processes for ring-opening of hydrocarbon species comprising aromatic and cycloparaffinic rings in hydrocarbon feeds to produce ring-opened products. In particular, the process comprises contacting hydrocarbon species comprising aromatic and cycloparaffinic rings with hydrogen in the presence of a ring-opening catalyst comprising a noble metal on a low-acidity crystalline material containing external pockets to facilitate ring-opening of the hydrocarbon species comprising aromatic and cycloparaffinic rings. The processes are useful in the transformation of polynuclear aromatic hydrocarbons (PAHs) to ring-opened products.

公开(公告)号：US11148952B1

公开(公告)日：2021-10-19

申请号：US17176636

申请日：2021-02-16

Applicant: CHEVRON U.S.A. INC.

Inventor： Cong-Yan Chen ,  Stacey Ian Zones ,  Tracy Margaret Davis

IPC: C01B39/02 ,  B01J37/00 ,  C01B37/00

Abstract: A method of increasing hydrophobicity of a molecular sieve is provided. The method includes: (a) providing a metallosilicate molecular sieve having a framework consisting of oxides of silicon (Si) and a metal (M), wherein M is boron or zinc; (b) contacting the metallosilicate molecular sieve with a liquid aqueous system, thereby obtaining a demetallated molecular sieve having silanol nests and empty framework sites; and (c) thermally treating the demetallated molecular sieve, thereby obtaining a thermally-treated molecular sieve, wherein the thermally-treated molecular sieve (i) retains the three-dimensional framework structure of the metallosilicate molecular sieve and (ii) has a higher Si/M molar ratio as compared to the metallosilicate molecular sieve.

公开(公告)号：US10246339B2

公开(公告)日：2019-04-02

申请号：US15649032

申请日：2017-07-13

Applicant: Chevron U.S.A. Inc.

Inventor： Stacey Ian Zones

IPC: C01B39/04 ,  C10G47/02 ,  B01J20/18 ,  B01J20/30 ,  B01J29/04 ,  B01J29/18 ,  B01J29/70 ,  B01J29/86 ,  B01J39/14 ,  C01B39/00 ,  C01B39/26 ,  C01B39/48 ,  C01B37/02 ,  C01B39/12

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.

公开(公告)号：US10189717B2

公开(公告)日：2019-01-29

申请号：US15690422

申请日：2017-08-30

Applicant: Chevron U.S.A. Inc.

Inventor： Stacey Ian Zones

IPC: C01B39/48 ,  B01J29/70 ,  C01B39/02

Abstract: A method is provided for synthesizing aluminosilicate zeolite SSZ-26 by interzeolite transformation.

公开(公告)号：US10160657B2

公开(公告)日：2018-12-25

申请号：US15785504

申请日：2017-10-17

Applicant: Chevron U.S.A. Inc.

Inventor： Stacey Ian Zones ,  Cong-Yan Chen ,  Adeola Florence Ojo

IPC: C01B39/48 ,  B01J29/74 ,  B01J29/70 ,  C07C5/27 ,  C01B39/02

Abstract: The present disclosure is directed to a high-silica form of zeolite SSZ-32x, its synthesis in fluoride media using dipropylamine as a structure directing agent, and its use in catalytic processes.

公开(公告)号：US10155666B2

公开(公告)日：2018-12-18

申请号：US15720046

申请日：2017-09-29

Applicant: Chevron U.S.A. Inc.

Inventor： Stacey Ian Zones

IPC: C01B39/48 ,  C01B39/02 ,  C01B39/06 ,  B01J29/70 ,  B01J29/04

Abstract: Methods are provided for the synthesis of molecular sieve CIT-13 having aluminum incorporated into the framework structure and use of such materials in organic compound conversion and/or sorptive processes.

公开(公告)号：US09738838B2

公开(公告)日：2017-08-22

申请号：US14919545

申请日：2015-10-21

Applicant: Chevron U.S.A. Inc.

Inventor： Bi-Zeng Zhan ,  Stacey Ian Zones ,  Christopher M. Lew

IPC: C10G45/64 ,  C10G47/20 ,  C10G47/18 ,  C10G47/16 ,  C10G45/62

CPC classification number: C10G45/64 ,  C10G45/62 ,  C10G47/18 ,  C10G47/20 ,  C10G2300/1022

Abstract: Provided is an improved hydroprocessing process allowing one to realize superior isoselectivity. The process comprises contacting a feed comprised of normal hydrocarbons under hydroprocessing conditions with a catalyst comprising delaminated SSZ-70. The delaminated SSZ-70 has been found to provide unexpected improvements in the catalysis of hydroprocessing hydrocarbons. Delaminated SSZ-70 offers a zeolite layer with a single unit cell of thickness in one dimension, allowing an elimination of mass transfer in comparison with non-delaminated SSZ-70.

公开(公告)号：US09505627B1

公开(公告)日：2016-11-29

申请号：US15098450

申请日：2016-04-14

Applicant: Chevron U.S.A. Inc.

Inventor： Stacey Ian Zones ,  Dan Xie ,  Robert James Saxton

IPC: C01B39/46 ,  B01D53/94 ,  B01D53/56 ,  B01J29/70 ,  B01J29/06 ,  C07C1/24 ,  C07C209/16

CPC classification number: C01B39/46 ,  B01D53/228 ,  B01D53/9413 ,  B01D53/9486 ,  B01D2253/108 ,  B01D2255/50 ,  B01D2256/245 ,  B01D2257/404 ,  B01D2257/504 ,  B01D2257/702 ,  B01J29/061 ,  B01J29/70 ,  B01J29/72 ,  B01J29/78 ,  C01B39/48 ,  C07C1/20 ,  C07C1/24 ,  C07C209/16 ,  C07C2529/70 ,  C07C2529/72 ,  Y02C10/10 ,  Y02P20/152 ,  Y02P20/52 ,  Y02P30/42 ,  C07C11/04 ,  C07C11/06 ,  C07C11/08 ,  C07C211/04

Abstract: Uses for a new crystalline molecular sieve designated SSZ-27 are disclosed. SSZ-27 is synthesized using a hexamethyl [4.3.3.0] propellane-8,11-diammonium cation as a structure directing agent.

Abstract translation: 公开了一种称为SSZ-27的新结晶分子筛的用途。 使用六甲基[4.3.3.0]推进剂-8,11-二铵阳离子作为结构导向剂合成SSZ-27。

公开(公告)号：US20160067694A1

公开(公告)日：2016-03-10

申请号：US14847700

申请日：2015-09-08

Applicant: The Regents of the University of California ,  Chevron U.S.A. Inc.

Inventor： Xiaoying Ouyang ,  Stacey Ian Zones ,  Alexander S. Katz

IPC: B01J29/89 ,  C07D301/19

CPC classification number: B01J29/89 ,  B01J2229/183 ,  C07D301/19

Abstract: Provided is a process of conducting olefin epoxidation which comprises contacting an olefin and an oxidant in the presence of Ti-UCB-4 to thereby prepare an epoxide. The Ti-UCB-4 catalyst is prepared by delaminating a B-SSZ-70 precursor and substituting Ti atoms for the boron atoms on the surface of the zeolite material lattice framework.

Abstract translation: 提供一种导电烯烃环氧化的方法，其包括在Ti-UCB-4存在下使烯烃和氧化剂接触，从而制备环氧化物。 Ti-UCB-4催化剂是通过分解B-SSZ-70前体并用Ti原子代替沸石材料晶格框架表面上的硼原子来制备的。