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公开(公告)号：US20220204873A1
公开(公告)日：2022-06-30
申请号：US17137928
申请日：2020-12-30
Applicant: Chevron U.S.A. Inc.
Inventor： Ling Jiao , Bi-Zeng Zhan , Don Bushee , Theodorus Ludovicus Michael Maesen , Hye-Kyung Timken , Richard Dutta , Jay Parekh
Abstract: Provided is a hydrocracking process with a recycle loop for converting a petroleum feed to lower boiling products, which process comprises reacting a stream over a non-zeolite noble metal catalyst at a temperature of about 650° F. (343° C.) or less in a reactor positioned in the recycle loop of the hydrocracking reactor.
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公开(公告)号：US09616419B2
公开(公告)日：2017-04-11
申请号：US14862358
申请日：2015-09-23
Applicant: CHEVRON U.S.A. INC.
Inventor： Yihua Zhang , Kamala Raghunathan Krishna , Guan-Dao Lei , Theodorus Ludovicus Michael Maesen
CPC classification number: B01J29/74 , B01J21/04 , B01J29/7461 , B01J29/7492 , B01J35/00 , B01J35/0026 , B01J35/1019 , B01J35/1038 , B01J35/1042 , B01J35/1047 , B01J35/1061 , B01J35/108 , C10G45/64 , C10M101/02
Abstract: The present invention is directed to an improved finished hydroisomerization catalyst manufactured from a first high nanopore volume (HNPV) alumina and a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 15 to 25 nm·g/cc, and a second HNPV alumina having a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 5 to 15 nm·g/cc. Their combination yields a HNPV base extrudate having a low particle density as compared to a conventional base extrudates.
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公开(公告)号：US12011710B1
公开(公告)日：2024-06-18
申请号：US18344380
申请日：2023-06-29
Applicant: Chevron U.S.A. Inc.
Inventor： Xiaoying Ouyang , Viorel Duma , Alexander Kuperman , Ibrahim Uckung , Theodorus Ludovicus Michael Maesen , Axel Brait , Charles Wilson
IPC: B01J37/20 , B01J23/89 , B01J35/31 , B01J35/61 , B01J35/63 , B01J37/00 , B01J37/03 , B01J37/04 , B01J37/08 , C07C5/10 , C10G45/00 , C10G47/00 , C10G49/00
CPC classification number: B01J23/8993 , B01J35/31 , B01J35/615 , B01J35/633 , B01J37/0045 , B01J37/031 , B01J37/04 , B01J37/08 , B01J37/20 , C07C5/10 , C10G45/00 , C10G47/00 , C10G49/00 , C10G2300/1055 , C10G2300/1074 , C10G2300/4006 , C10G2300/4012 , C10G2300/4018 , C10G2300/42 , C10G2300/70
Abstract: Bulk catalysts comprised of nickel, molybdenum, tungsten and titanium and methods for synthesizing bulk catalysts are provided. The catalysts are useful for hydroprocessing, particularly hydrodesulfurization and hydrodenitrogenation, of hydrocarbon feedstocks.
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公开(公告)号：US11041128B2
公开(公告)日：2021-06-22
申请号：US16533510
申请日：2019-08-06
Applicant: Chevron U.S.A. Inc.
Inventor： Theodorus Ludovicus Michael Maesen , Derek Blackwell , Viorel Duma , Varut Komalarajun , Alexander E. Kuperman , Hyunuk Ryu , Horacio Trevino , Alex Yoon , Ujjal Mukherjee
Abstract: A catalyst system has been designed that disrupts the sedimentation process. The catalyst system achieves this by saturating key feed components before the feed components are stripped into their incompatible aromatic cores. The efficacy of this disruptive catalyst system is particularly evident in a hydrocracker configuration that runs in two-stage-recycle operation. The catalyst is a self-supported multi-metallic catalyst prepared from a precursor in the hydroxide form, and the catalyst must be toward the top level of the second stage of the two-stage system.
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公开(公告)号：US11639475B2
公开(公告)日：2023-05-02
申请号：US17385782
申请日：2021-07-26
Applicant: Chevron U.S.A. Inc.
Inventor： Varut Komalarajun , Theodorus Ludovicus Michael Maesen
IPC: C10G67/02 , B01J23/888 , B01D3/14
Abstract: A hydrocracking process for converting a petroleum feed to lower boiling products. The process comprises hydrotreating a petroleum feed in a pre-treating zone in the presence of hydrogen to produce a hydrotreated effluent stream comprising a liquid product. At least a portion of the hydrotreated effluent stream is then passed to an MMS catalyst zone, and then to a hydrocracking zone. In one embodiment, the MMS catalyst zone comprises a self-supported multi-metallic catalyst prepared from a precursor in the oxide or hydroxide form. The percentage work of the hydrotreating in the pre-treating zone is maintained at a level of at least 56%.
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Patent Agency Ranking
6.发明申请公开(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.
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.
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7.发明授权公开(公告)号：US10913054B2
公开(公告)日：2021-02-09
申请号：US16057778
申请日：2018-08-07
Applicant: Chevron U.S.A. Inc.
Inventor： Yihua Zhang , Theodorus Ludovicus Michael Maesen , Yalin Hao , Thomas Michael Rea , Don Ramon Bushee
IPC: B01J29/80 , B01J37/04 , B01J35/00 , B01J23/88 , B01J23/888 , B01J29/08 , B01J29/70 , B01J37/00 , B01J37/02 , B01J37/08 , C10G47/20 , B01J29/16 , B01J29/78
Abstract: A hydrocracking catalyst comprising a zeolite beta having an average domain size from 800 to 1500 nm2; a zeolite USY; a catalyst support; and at least one metal selected from the group consisting of elements from Group 6 and Groups 8 through 10 of the Periodic Table. The zeolite beta has an OD acidity of 20 to 50 μmol/g and the catalyst support comprises an amorphous silica aluminate and a second support material when the weight percentage content of the zeolite beta is less than the weight percentage of the zeolite USY, and, when the weight percentage content of the zeolite beta is greater than the weight percentage of the zeolite USY, the zeolite beta has an OD acidity of 20 to 400 μmol/g, the zeolite beta content is from 0.5 to 10 wt. % and the zeolite USY has an ASDI between 0.05 and 0.12 with a corresponding zeolite USY content of from 0 to 5 wt. %. A process for hydrocracking a hydrocarbonaceous feedstock using the catalyst is also described as is a method for making the hydrocracking catalyst.
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公开(公告)号：US20170029718A1
公开(公告)日：2017-02-02
申请号：US15291823
申请日：2016-10-12
Applicant: Chevron U.S.A. Inc.
Inventor： Yihua Zhang , Theodorus Ludovicus Michael Maesen
IPC: C10G47/20 , B01J21/12 , B01J29/08 , B01J37/02 , B01J35/10 , B01J35/00 , B01J37/00 , B01J23/888 , B01J29/16
CPC classification number: C10G47/20 , B01J21/12 , B01J23/888 , B01J29/064 , B01J29/076 , B01J29/084 , B01J29/166 , B01J35/002 , B01J35/0026 , B01J35/023 , B01J35/1019 , B01J35/1023 , B01J35/1042 , B01J35/1047 , B01J35/1061 , B01J35/108 , B01J37/0009 , B01J37/0201 , B01J2229/20 , B01J2229/42 , C10G2300/1044 , C10G2300/70
Abstract: The present invention is directed to an improved hydrocracking catalyst containing an amorphous silica-alumina (ASA) base and alumina support. The ASA base is characterized as having a high nanopore volume and low particle density. The alumina support is characterized as having a high nanopore volume. Hydrocracking catalysts employing the combination high nanopore volume ASA base and alumina support exhibit improved hydrogen efficiency, and greater product yield and quality, as compared to hydrocracking catalysts containing conventional ASA base and alumina components.
Abstract translation: 本发明涉及一种改进的含有无定形二氧化硅 - 氧化铝（ASA）和氧化铝载体的加氢裂化催化剂。 ASA碱的特征在于具有高的纳孔孔体积和低的颗粒密度。 氧化铝载体的特征在于具有高纳米孔体积。 与含有常规ASA碱和氧化铝组分的加氢裂化催化剂相比，使用高纳米孔体积ASA基和氧化铝载体的加氢裂化催化剂显示出改进的氢效率和更高的产物收率和质量。
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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.
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。
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公开(公告)号：US11951458B2
公开(公告)日：2024-04-09
申请号：US18344450
申请日：2023-06-29
Applicant: Chevron U.S.A. Inc.
Inventor： Xiaoying Ouyang , Viorel Duma , Alexander Kuperman , Ibrahim Uckung , Theodorus Ludovicus Michael Maesen , Axel Brait , Charles Wilson
IPC: C10G45/00 , B01J21/06 , B01J23/28 , B01J23/30 , B01J23/755 , B01J23/89 , B01J35/31 , B01J35/61 , B01J35/63 , B01J37/00 , B01J37/03 , B01J37/04 , B01J37/08 , B01J37/20 , C07C5/10 , C10G47/00 , C10G49/00
CPC classification number: B01J23/8993 , B01J35/31 , B01J35/615 , B01J35/633 , B01J37/0045 , B01J37/031 , B01J37/04 , B01J37/08 , B01J37/20 , C07C5/10 , C10G45/00 , C10G47/00 , C10G49/00 , C10G2300/1055 , C10G2300/1074 , C10G2300/4006 , C10G2300/4012 , C10G2300/4018 , C10G2300/42 , C10G2300/70
Abstract: Bulk catalysts comprised of nickel, molybdenum, tungsten and titanium and methods for synthesizing bulk catalysts are provided. The catalysts are useful for hydroprocessing, particularly hydrodesulfurization and hydrodenitrogenation, of hydrocarbon feedstocks.
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