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    EPOXIDATION CATALYST
    5.
    发明申请
    EPOXIDATION CATALYST 审中-公开

    公开(公告)号：WO2022161924A1

    公开(公告)日：2022-08-04

    申请号：PCT/EP2022/051551

    申请日：2022-01-25

    申请人： BASF SE

    发明人： KARPOV, Andrey ,  ALMER, Christian ,  WALSDORFF, Christian ,  LEHR, Andreas ,  NIKOLAY, Michael ,  BARTOSCH, Christian ,  GROBYS, Mauricio

    IPC分类号： B01J23/68 ,  B01J37/02 ,  B01J21/04 ,  B01J35/02 ,  B01J35/10 ,  C07D301/10

    摘要： An epoxidation catalyst comprising silver, cesium, rhenium and tungsten deposited on an alumina support, wherein the catalyst comprises 20 to 50 wt.-% of silver, relative to the weight of the catalyst, an amount of cesium Ccs of at least 7.5 mmol per kg of catalyst, and an amount of rhenium CR6 and an amount of tungsten Cw so as to meet the following requirements: CRe ≥ 6.7 mmol per kg of catalyst; and CRe + (2 χ cw) ≥ 13.2 mmol per kg of catalyst. The epoxidation catalyst allows for a more efficient conversion of ethylene oxide by gas-phase oxidation of ethylene, particularly displaying high selectivity and high activity. The invention also relates to a process for preparing an epoxidation catalyst as defined in above, comprising i) impregnating an alumina support with a silver impregnation solution; and ii) subjecting the impregnated refractory support to a calcination process; wherein steps i) and ii) are optionally repeated, and at least one silver impregnation solution comprises rhenium, tungsten and cesium. The invention moreover relates to a process for producing ethylene oxide by gas-phase oxidation of ethylene, comprising reacting ethylene and oxygen in the presence of an epoxidation catalyst according to any one of the preceding claims.

    INTEGRATION OF A STEAM CRACKER WITH ACID ALKYLATION
    8.
    发明申请
    INTEGRATION OF A STEAM CRACKER WITH ACID ALKYLATION 审中-公开

    公开(公告)号：WO2022108827A1

    公开(公告)日：2022-05-27

    申请号：PCT/US2021/059024

    申请日：2021-11-11

    申请人： KELLOGG BROWN & ROOT LLC

    发明人： REYNEKE, Rian

    IPC分类号： B01J21/04 ,  B01J21/08 ,  B01J21/12

    摘要： Methods and systems for steam cracking a mixed butane containing feed stream are disclosed. The feed stream includes n-butane and isobutane. The disclosed methods and systems entail splitting the feed into an enriched n-butane fraction and an enriched isobutane fraction. The enriched n-butane fraction is provided to the cracking furnaces, which yield the olefin products and also yield C4 species. The C4 species are partially hydrogenated and provided as a reactant feed to an alkylation reaction. The enriched isobutane fraction is also provided to the alkylation reaction, whereby high value alkylate product is produced. The disclosed methods and systems have increase olefins (especially ethylene) yield because the feed to the cracking process is enriched in n-butane. The economics are also improved because high value alkylate product is produced from a portion of the isobutane.

    HIGH NANOPORE VOLUME CATALYST AND PROCESS USING SSZ-91
    9.
    发明申请
    HIGH NANOPORE VOLUME CATALYST AND PROCESS USING SSZ-91 审中-公开

    公开(公告)号：WO2022103915A1

    公开(公告)日：2022-05-19

    申请号：PCT/US2021/058896

    申请日：2021-11-11

    申请人： CHEVRON U.S.A. INC.

    发明人： ZHANG, Yihua ,  OJO, Adeola Florence ,  LEI, Guan-Dao

    IPC分类号： B01J21/04 ,  B01J29/74 ,  B01J35/10 ,  B01J37/00 ,  C10G45/64

    摘要： An improved hydroisomerization catalyst and process for making a base oil product wherein the catalyst comprises a base extrudate that includes SSZ-91 molecular sieve and a high nanopore volume alumina. The catalyst and process generally involves the use of a SSZ-91/high nanopore volume alumina based catalyst to produce dewaxed base oil products by contacting the catalyst with a hydrocarbon feedstock. The catalyst base extrudate advantageously comprises an alumina having a pore volume in the 11‑20 nm pore diameter range of 0.05 to 1.0 cc/g, with the base extrudate formed from SSZ-91 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 and process provide improved base oil yield with reduced gas and fuels production.