-
公开(公告)号：US10052619B2
公开(公告)日：2018-08-21
申请号：US15438295
申请日：2017-02-21
Applicant: Chevron U.S.A. Inc.
Inventor： Adeola Florence Ojo , Yihua Zhang , Guan-Dao Lei , Stacey Ian Zones
IPC: C01B39/00 , B01J29/74 , C01B39/48 , C01B39/06 , B01J20/18 , B01J20/28 , B01J20/30 , B01J35/10 , B01J37/00 , B01J37/08 , B01J37/30 , B01J37/02 , C10G65/04
CPC classification number: B01J29/74 , B01J20/18 , B01J20/28061 , B01J20/28071 , B01J20/3057 , B01J20/3078 , B01J20/3085 , B01J29/7046 , B01J29/7492 , B01J35/002 , B01J35/10 , B01J35/1019 , B01J35/1038 , B01J37/0018 , B01J37/0207 , B01J37/082 , B01J37/18 , B01J37/30 , B01J2229/183 , B01J2229/186 , B01J2229/24 , B01J2229/38 , B01J2229/40 , B01J2229/42 , C01B39/026 , C01B39/06 , C01B39/48 , C01P2006/12 , C01P2006/14 , C10G25/03 , C10G29/205 , C10G45/64 , C10G47/16 , C10G65/043 , C10G2300/70
Abstract: A new crystalline molecular sieve designated SSZ-95 is disclosed. In general, SSZ-95 is synthesized from a reaction mixture suitable for synthesizing MTT-type molecular sieves and maintaining the mixture under crystallization conditions sufficient to form product. The product molecular sieve is subjected to a pre-calcination step, and ion-exchange to remove extra-framework cations, and a post-calcination step. The molecular sieve has a MTT-type framework and a H-D exchangeable acid site density of 0 to 50% relative to molecular sieve SSZ-32.
-
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.
-
公开(公告)号：US20170056870A1
公开(公告)日：2017-03-02
申请号：US14837094
申请日：2015-08-27
Applicant: Chevron U.S.A. Inc.
Inventor： Adeola Florence Ojo , Dan Xie , Yihua Zhang , Guan-Dao Lei
CPC classification number: B01J29/80 , B01J29/7023 , B01J29/703 , B01J29/7446 , B01J29/7461 , C01B39/023 , C01B39/48
Abstract: Methods for making a family of new crystalline molecular sieves designated SSZ-91 are disclosed. Molecular sieve SSZ-91 is structurally similar to sieves falling within the ZSM-48 family of molecular sieves, and is characterized as: (1) having a low degree of faulting, (2) a low aspect ratio that inhibits hydrocracking as compared to conventional ZSM-48 materials having an aspect ratio of greater than 8, and (3) is substantially phase pure.
Abstract translation: 公开了制备一种称为SSZ-91的新型结晶分子筛家族的方法。 分子筛SSZ-91在结构上类似于落在ZSM-48族分子筛内的筛，其特征在于：（1）具有低断层程度，（2）与常规的相比，抑制加氢裂化的低纵横比 长径比大于8的ZSM-48材料和（3）基本上是相纯的。
-
公开(公告)号：US12090468B2
公开(公告)日：2024-09-17
申请号：US17199262
申请日：2021-03-11
Applicant: CHEVRON U.S.A. INC.
Inventor： Yihua Zhang , Guan-Dao Lei
CPC classification number: B01J23/44 , B01J21/04 , B01J21/12 , B01J23/42 , B01J35/633 , B01J35/647 , C10G45/52 , C10G2300/1096 , C10G2300/70
Abstract: An improved hydrotreating catalyst and process for making a base oil product. The catalyst comprises a base extrudate of a high nanopore volume amorphous silica alumina (ASA) and alumina. The catalyst and process use a high nanopore volume ASA/alumina based catalyst to produce hydrotreated dewaxed base oil products from a hydrocarbon feedstock. The base extrudate comprises ASA having a pore volume in the 11-20 nm pore diameter range of 0.2 to 0.9 cc/g and an alumina having a pore volume in the 11-20 nm pore diameter range of 0.01 to 1.0 cc/g. The base extrudate formed has a total pore volume in the 2-50 nm pore diameter range of 0.12 to 1.80 cc/g. The catalyst further comprises at least one modifier element from Groups 6 to 10 and Group 14 of the Periodic Table. The catalyst and process provide improved aromatics saturation.
-
公开(公告)号：US11559789B2
公开(公告)日：2023-01-24
申请号：US17199282
申请日：2021-03-11
Applicant: CHEVRON U.S.A. INC.
Inventor： Yihua Zhang , Guan-Dao Lei , Bi-Zeng Zhan
IPC: B01J23/44 , B01J21/12 , C10G45/62 , C10M101/02 , C10M177/00 , B01J35/10 , C10N70/00
Abstract: An improved hydrotreating catalyst and process for making a base oil product wherein the catalyst comprises a base extrudate that includes a high nanopore volume amorphous silica alumina (ASA) and a second amorphous silica alumina. The catalyst and process generally involve the use of a base extrudate comprising the high nanopore volume ASA and the second ASA in a catalyst to produce hydrotreated dewaxed base oil products by contacting the catalyst with a hydrocarbon feedstock. The catalyst base extrudate advantageously comprises a first amorphous silica alumina having a pore volume in the 11-20 nm pore diameter range of 0.2 to 1.0 cc/g and a second amorphous silica alumina having a pore volume in the 11-20 nm pore diameter range of 0.02 to 0.2 cc/g, with the base extrudate formed from the amorphous silica alumina and the alumina having a total pore volume in the 2-50 nm pore diameter range of 0.12 to 1.80 cc/g. The catalyst further comprises at least one modifier element from Groups 6 to 10 and Group 14 of the Periodic Table. The catalyst and process provide improved aromatics saturation.
-
Patent Agency Ranking
公开(公告)号：US20220204875A1
公开(公告)日：2022-06-30
申请号：US17138039
申请日：2020-12-30
Applicant: Chevron U.S.A. Inc.
Inventor： Jay Parekh , Jifei Jia , Guan-Dao Lei , Kenny Peinado , Yihua Zhang , Shanying Lee
IPC: C10G67/02 , C10M101/02 , C10M177/00
Abstract: A process for preparing a base oil from a waxy hydrocarbon feedstock is provided. The process comprises passing the hydrocarbon feedstock to a distillation column prior to dewaxing in order to recover a heavy wax cut. The heavy wax is then hydrocracked to lower boiling compounds which can be better isomerized to a base oil with an acceptable cloud point. The base oil yield is also increased.
-
公开(公告)号：US11001502B2
公开(公告)日：2021-05-11
申请号：US16848551
申请日：2020-04-14
Applicant: Chevron U.S.A. Inc.
Inventor： Adeola Florence Ojo , Dan Xie , Yihua Zhang , Guan-Dao Lei
IPC: C01B39/48 , C07C5/13 , B01J29/70 , C01B39/02 , B01J29/74 , C01B39/46 , B01J29/80 , B01J35/00 , B01J29/72 , B01J29/76
Abstract: A family of new crystalline molecular sieves designated SSZ-91 is disclosed, as are methods for making SSZ-91 and uses for SSZ-91. Molecular sieve SSZ-91 is structurally similar to sieves falling within the ZSM-48 family of molecular sieves, and is characterized as: (1) having a low degree of faulting, (2) a low aspect ratio that inhibits hydrocracking as compared to conventional ZSM-48 materials having an aspect ratio of greater than 8, and (3) is substantially phase pure.
-
18.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.
-
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。
-
公开(公告)号：US09920260B2
公开(公告)日：2018-03-20
申请号：US14837108
申请日：2015-08-27
Applicant: Chevron U.S.A. Inc.
Inventor： Adeola Florence Ojo , Dan Xie , Yihua Zhang , Guan-Dao Lei
IPC: C10G45/64 , B01J29/80 , B01J29/74 , C07C5/27 , C10M105/04
CPC classification number: C10G45/64 , B01J29/74 , B01J29/7446 , B01J29/7461 , B01J29/80 , B01J35/002 , B01J2229/186 , C07C5/2708 , C07C5/2737 , C07C2529/70 , C07C2529/74 , C07C2529/80 , C10M105/04 , C07C9/22
Abstract: Uses for a family of new crystalline molecular sieves designated SSZ-91 are disclosed. Molecular sieve SSZ-91 is structurally similar to sieves falling within the ZSM-48 family of molecular sieves, and is characterized as: (1) having a low degree of faulting, (2) a low aspect ratio that inhibits hydrocracking as compared to conventional ZSM-48 materials having an aspect ratio of greater than 8, and (3) is substantially phase pure.
-
-
-
-
-
-
-
-
-
Search Results
26
records
(took 0.018 seconds)
