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    IMPROVED PRODUCTION OF HEAVY API GROUP II BASE OIL
    2.
    发明申请
    IMPROVED PRODUCTION OF HEAVY API GROUP II BASE OIL 有权
    改进生产重型API Group II基础油

    公开(公告)号：US20170066979A1

    公开(公告)日：2017-03-09

    申请号：US14848917

    申请日：2015-09-09

    申请人： Chevron U.S.A. Inc.

    发明人： Guan-Dao Lei ,  Subhasis Bhattacharya ,  Axel Brait

    IPC分类号： C10G67/16 ,  C10M101/00 ,  C10M177/00

    CPC分类号： C10G67/16 ,  C10G53/06 ,  C10G67/00 ,  C10G67/0409 ,  C10G67/0418 ,  C10G67/0445 ,  C10G73/06 ,  C10G2300/1096 ,  C10G2400/08 ,  C10M101/00 ,  C10M177/00

    摘要： A process for heavy base oil production, comprising: a. performing an aromatic extraction of a first hydrocarbon feed to produce an aromatic extract, and a waxy raffinate; b. mixing the aromatic extract with a second hydrocarbon feed to make a mixed feed having greater than 2,000 wt ppm sulfur; c. feeding the mixed feed to a hydroprocessing unit to produce a heavy API Group II base oil having a kinematic viscosity at 70° C. from 22.6 to 100 mm2/s. An integrated refinery process unit for making heavy base oils, comprising: a. an aromatic extraction unit fluidly connected to a solvent dewaxing unit and a hydroprocessing unit; b. a first line from the aromatic extraction unit, that feeds an aromatic extract to a second hydrocarbon feed to make a mixed feed having greater than 2,000 wt ppm sulfur; and c. a connection that feeds the mixed feed to the hydroprocessing unit.

    摘要翻译： 一种重质基油生产方法，包括：a。 执行第一烃进料的芳族萃取以产生芳族萃取物，和蜡状提余液; b。 将芳族提取物与第二烃进料混合以制备具有大于2,000重量ppm硫的混合进料; C。 将混合的进料加入加氢处理装置中以产生重的API II组基础油，其运动粘度在70℃为22.6至100mm 2 / s。 一种用于制造重质基础油的综合炼油工艺装置，包括：a。 芳烃提取单元，其流体连接到溶剂脱蜡单元和加氢处理单元; b。 来自芳族萃取单元的第一行，其将芳族萃取物进料到第二烃进料以制备具有大于2,000重量ppm硫的混合进料; 和c。 将混合进料送入加氢处理装置的连接。

    Hydroisomerization catalysts
    3.
    发明授权
    Hydroisomerization catalysts 有权

    公开(公告)号：US11865527B2

    公开(公告)日：2024-01-09

    申请号：US17147725

    申请日：2021-01-13

    申请人： CHEVRON U.S.A. INC.

    发明人： Yihua Zhang ,  Adeola Florence Ojo ,  Guan-Dao Lei

    IPC分类号： B01J29/06 ,  B01J29/76 ,  B01J35/02 ,  C10G45/64

    CPC分类号： B01J29/7661 ,  B01J35/026 ,  C10G45/64

    摘要： A hydroisomerization catalyst comprising a molecular sieve belonging to the ZSM-48 family of zeolites; an inorganic oxide support; one or more first modifiers selected from Groups 8 to 10; and one or more second modifiers selected from the group consisting of calcium (Ca), chromium (Cr), magnesium (Mg), lanthanum (La), barium (Ba), praseodymium (Pr), strontium (Sr), potassium (K) and neodymium (Nd). The molecular sieve comprises: a silicon oxide to aluminum oxide mole ratio of about 40 to about 220; at least about 70% polytype 6 of the total ZSM-48-type material present in the product; and an additional EUO-type molecular sieve phase in an amount of between about 0 and about 7.0 percent by weight of the total product. The molecular sieve has a morphology characterized as polycrystalline aggregates comprising crystallites collectively having an average aspect ratio of between about 1 and about 8.

    MOLECULAR SIEVE SSZ-91
    6.
    发明申请
    MOLECULAR SIEVE SSZ-91 审中-公开
    分子筛SSZ-91

    公开(公告)号：US20170056869A1

    公开(公告)日：2017-03-02

    申请号：US14837087

    申请日：2015-08-27

    申请人： Chevron U.S.A. Inc.

    发明人： Adeola Florence Ojo ,  Dan Xie ,  Yihua Zhang ,  Guan-Dao Lei

    IPC分类号： B01J29/80 ,  B01J29/74

    CPC分类号： B01J29/80 ,  B01J29/7023 ,  B01J29/703 ,  B01J29/7446 ,  B01J29/7461 ,  B01J35/002 ,  C01B39/023 ,  C01B39/46 ,  C01B39/48

    摘要： A family of new crystalline molecular sieves designated SSZ-91 is 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.

    摘要翻译： 公开了一系列新的结晶分子筛SSZ-91。 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。

    PROCESS HAVING IMPROVED BASE OIL YIELD
    10.
    发明申请
    PROCESS HAVING IMPROVED BASE OIL YIELD 有权

    公开(公告)号：US20220204876A1

    公开(公告)日：2022-06-30

    申请号：US17138038

    申请日：2020-12-30

    申请人： Chevron U.S.A. Inc.

    发明人： Kenny Peinado ,  Jifei Jia ,  Guan-Dao Lei ,  Jay Parekh ,  Yihua Zhang

    IPC分类号： C10G67/04 ,  C10G45/62

    摘要： Provided is a process for preparing base oil from a waxy hydrocarbon feedstock by contacting the hydrocarbon feedstock in a hydroisomerization zone under hydroisomerization conditions. The reaction is in the presence of hydrogen and an inert gas, with the total pressure in the hydroisomerization zone being at least 400 psig. A product from the hydroisomerization zone is collected and separated into base oil products and fuel products. The inert gas can comprise any suitable inert gas, but is generally nitrogen, methane or argon. Nitrogen is used in one embodiment.