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公开(公告)号：US20240058802A1
公开(公告)日：2024-02-22
申请号：US18036572
申请日：2021-11-11
申请人： CHEVRON U.S.A. INC.
发明人： Yihua ZHANG , Adeola Florence OJO , Guan Dao LEI
CPC分类号： B01J29/7461 , B01J21/04 , B01J29/7023 , B01J29/703 , B01J29/74 , B01J29/80 , B01J35/1038 , B01J35/1042 , B01J35/1047 , B01J35/1061 , C10G45/64 , C10M109/02 , B01J2029/062
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.
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公开(公告)号：US20230415134A1
公开(公告)日：2023-12-28
申请号：US18036621
申请日：2021-11-11
申请人： CHEVRON U.S.A. INC.
发明人： Yihua ZHANG , Guan Dao LEI
CPC分类号： B01J29/7446 , B01J29/7461 , B01J29/7492 , C10G25/03 , C10G2300/70 , C10G47/20 , C10G2300/302 , C10G2300/304 , C10G45/64
摘要： An improved hydroisomerization catalyst system and process for making a base oil product using a combined catalyst system comprising SSZ-91 molecular sieve and SSZ-95 molecular sieve. The catalyst system and process generally involves the use of a catalyst comprising an SSZ-91 molecular sieve and a separate catalyst comprising an SSZ-95 molecular sieve to produce dewaxed base oil products by sequentially contacting the catalysts with a hydrocarbon feedstock. The catalyst system and process provide improved base oil yield along with other beneficial base oil properties.
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