公开(公告)号：US11577235B1

公开(公告)日：2023-02-14

申请号：US17401757

申请日：2021-08-13

Applicant: Chevron U.S.A. Inc.

Inventor： Axel Brait ,  Xiaoying Ouyang ,  Alexander Kuperman ,  Theodorus Ludovicus Michael Maesen

IPC: B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  B01J21/12 ,  B01J21/16 ,  B01J23/28 ,  B01J23/30 ,  B01J23/42 ,  B01J23/44 ,  B01J23/75 ,  B01J23/755 ,  B01J23/882 ,  B01J23/883 ,  B01J23/888 ,  B01J23/89 ,  B01J35/00 ,  C07C4/06 ,  C07C5/02 ,  C07C6/00 ,  B01J35/10

Abstract: A layered catalyst reactor system and process for hydrotreatment of hydrocarbon feedstocks. The layered catalyst system reactors comprise vertical bed layers including a demetallization catalyst layer, multiple layers of supported hydrotreating catalyst layer, and multiple alternating layers of supported hydrocracking catalysts and self-supported hydrotreating catalysts. The arrangement of the catalyst layers mitigates the risk of temperature run-aways, with improvements in hydrotreatment performance.

公开(公告)号：US11781076B2

公开(公告)日：2023-10-10

申请号：US17683990

申请日：2022-03-01

Applicant: CHEVRON U.S.A. INC.

Inventor： Lin Li ,  Huping Luo ,  Xiaoying Ouyang ,  Alexander Kuperman

IPC: C10G50/00 ,  C10G47/34

CPC classification number: C10G50/00 ,  C10G47/34 ,  C10G2300/1025 ,  C10G2400/20 ,  C10G2400/22 ,  C10G2400/30

Abstract: The present disclosure refers to systems and methods for efficiently converting a C1-C3 alkane such as natural gas to a liquid C2-C10 product and hydrogen. Generally, the process comprises flowing the C1-C3 alkane through a plurality of tubes within a vessel wherein the tubes house a catalyst for converting the C1-C3 alkane to the liquid C2-C10 product and hydrogen. The C1-C3 alkane is heated under suitable conditions to produce the liquid C2-C10 product and hydrogen. Advantageously, the C1-C3 alkane is heated by burning a fuel outside the tubes in fuel burning nozzles configured to transfer heat from the burning through the tubes.

公开(公告)号：US20230055751A1

公开(公告)日：2023-02-23

申请号：US17401757

申请日：2021-08-13

Applicant: Chevron U.S.A. Inc.

Inventor： Axel Brait ,  Xiaoying Ouyang ,  Alexander Kuperman ,  Theodorus Ludovicus Michael Maesen

IPC: B01J35/00 ,  B01J23/888 ,  B01J23/42 ,  B01J23/44 ,  B01J21/04 ,  B01J21/16 ,  B01J35/10

Abstract: A layered catalyst reactor system and process for hydrotreatment of hydrocarbon feedstocks. The layered catalyst system reactors comprise vertical bed layers including a demetallization catalyst layer, multiple layers of supported hydrotreating catalyst layer, and multiple alternating layers of supported hydrocracking catalysts and self-supported hydrotreating catalysts. The arrangement of the catalyst layers mitigates the risk of temperature run-aways, with improvements in hydrotreatment performance.

公开(公告)号：US09919987B1

公开(公告)日：2018-03-20

申请号：US15358248

申请日：2016-11-22

Applicant: Chevron U.S.A. Inc.

Inventor： Bi-Zeng Zhan ,  Alexander Kuperman

IPC: C07C5/31 ,  B01J27/051 ,  C07C5/27 ,  C07C5/22

CPC classification number: C07C5/31 ,  B01J23/883 ,  B01J27/051 ,  B01J27/0515 ,  B01J37/20 ,  C07C5/22 ,  C07C5/27 ,  C07C5/2732 ,  C07C2527/051 ,  C10G45/60 ,  C10G47/06 ,  C10G2300/1037 ,  C10G2300/202 ,  C10G2300/301 ,  C10G2300/307 ,  C10G2300/70

Abstract: A process is disclosed for opening naphthenic rings of naphthenic ring-containing compounds. Naphthene ring opening is achieved using a self-supported mixed metal sulfide catalyst comprising nickel sulfide, molybdenum sulfide, tungsten sulfide and an organic complexing agent. The catalyst is characterized as having a composition of metal components, in terms of molar ratios; as follows: 0.25≤Ni/(Ni+Mo+W)≤0.80; 0

公开(公告)号：US09266915B2

公开(公告)日：2016-02-23

申请号：US14731082

申请日：2015-06-04

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

Inventor： Alexander S. Katz ,  Alexander Kuperman ,  Alexander Okrut ,  Ron C. Runnebaum ,  Xiaoying Ouyang

IPC: C07F15/00 ,  B01J31/24 ,  C01G55/00 ,  B01J31/06 ,  B01J31/16 ,  B01J31/20 ,  B01J37/08 ,  B01J37/12 ,  C07C5/03

CPC classification number: C07F15/0033 ,  B01J31/066 ,  B01J31/1616 ,  B01J31/1683 ,  B01J31/20 ,  B01J31/24 ,  B01J31/2404 ,  B01J31/2457 ,  B01J37/08 ,  B01J37/12 ,  B01J2231/645 ,  B01J2531/0211 ,  B01J2531/0288 ,  B01J2531/827 ,  C01G55/008 ,  C07C5/03 ,  C07C2531/24 ,  C07F15/004

Abstract: The present invention is directed to the synthesis of novel stable open metal clusters by selective oxidation of bound ligands. The synthesis comprises, for example, using an amine based oxidant for decarbonylation of specific carbonyl ligands. The synthesis can also comprise further removal of a bound amine group by an acid. The resulting metal cluster contains a coordinatively unsaturated site comprising a carbonyl vacancy. The resulting metal cluster can be used as a catalyst in a variety of chemical transformations.

Abstract translation: 本发明涉及通过选择性氧化结合的配体合成新的稳定的开放金属簇。 合成包括例如使用胺基氧化剂来脱羰特定的羰基配体。 合成还可以包括通过酸进一步除去结合的胺基。 所得金属簇含有包含羰基空位的配位不饱和位点。 所得到的金属簇可以用作各种化学转化中的催化剂。

公开(公告)号：US20150238949A1

公开(公告)日：2015-08-27

申请号：US14582019

申请日：2014-12-23

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

Inventor： Alexander Katz ,  Namal De Silva ,  Andrew Solovyov ,  Alexander Kuperman ,  Cong-Yan Chen ,  Partha Nandi ,  Alexander Okrut ,  Igor Busygin

IPC: B01J31/24 ,  B01J35/00 ,  C07C5/03 ,  C07F15/00

CPC classification number: B01J31/24 ,  B01J23/46 ,  B01J23/468 ,  B01J31/066 ,  B01J31/16 ,  B01J31/20 ,  B01J31/2273 ,  B01J31/2404 ,  B01J31/2447 ,  B01J31/2457 ,  B01J35/0013 ,  B01J37/086 ,  B01J2231/641 ,  B01J2231/645 ,  B01J2231/70 ,  B01J2531/0211 ,  B01J2531/827 ,  B01J2540/10 ,  B01J2540/50 ,  C07C5/03 ,  C07C2531/24 ,  C07F15/0033

Abstract: The invention provides complexes in which a calixarene-related compound is coordinated to an iridium-containing metal colloid. The complexes can be immobilized on a substrate. The complexes of the invention are useful as tunable and highly robust isolated metal colloids that find use in binding of molecules and catalysis of chemical reactions.

Abstract translation: 本发明提供了一种其中杯芳烃相关化合物与含铱金属胶体配位的配合物。 络合物可以固定在基底上。 本发明的配合物可用作可调和高度坚固的分离金属胶体，其用于结合分子和催化化学反应。

公开(公告)号：US20150196903A1

公开(公告)日：2015-07-16

申请号：US14664123

申请日：2015-03-20

Applicant: Chevron U.S.A. Inc.

Inventor： Alexander Kuperman ,  Theodorus Ludovicus Michael Maesen ,  Dennis Dykstra

IPC: B01J37/34 ,  B01J27/051 ,  B01J37/20 ,  B01J37/04 ,  B01J37/03 ,  B01J37/08

CPC classification number: B01J37/342 ,  B01J23/85 ,  B01J23/8885 ,  B01J27/0515 ,  B01J37/03 ,  B01J37/036 ,  B01J37/04 ,  B01J37/08 ,  B01J37/20 ,  B01J37/34

Abstract: In a process for forming a bulk hydroprocessing catalyst by sulfiding a catalyst precursor made in a co-precipitation reaction, up to 60% of the metal precursor feeds do not react to form catalyst precursor and end up in the supernatant as metal residuals. In the present disclosure, the metals can be recovered in a chemical precipitation step, wherein the supernatant is mixed with at least one of an acid, a sulfide-containing compound, a base, and combinations thereof to precipitate at least 50% of metal ions in at least one of the metal residuals, wherein the precipitation is carried out at a pre-select pH. The precipitate is isolated and recovered, yielding an effluent stream. The precipitate and/or the effluent stream can be further treated to form at least a metal precursor feed which can be used in the co-precipitation reaction. The process generates an effluent to waste treatment containing less than 50 ppm metals.

Abstract translation: 在通过硫化在共沉淀反应中制备的催化剂前体形成本体加氢处理催化剂的方法中，多达60％的金属前体进料不反应形成催化剂前体，最后作为金属残余物结合在上清液中。 在本公开中，可以在化学沉淀步骤中回收金属，其中将上清液与酸，含硫化物的化合物，碱及其组合中的至少一种混合以沉淀至少50％的金属离子 在至少一个金属残留物中，其中沉淀是在预先选择的pH下进行的。 分离并回收沉淀物，产生流出物流。 可以将沉淀物和/或流出物流进一步处理以形成可用于共沉淀反应的至少一种金属前体进料。 该过程产生含有少于50ppm金属的废水处理废水。