公开(公告)号：US20170252731A1

公开(公告)日：2017-09-07

申请号：US15501088

申请日：2015-07-31

Applicant: CHIYODA CORPORATION

Inventor： Shinya HODOSHIMA ,  Fuyuki YAGI ,  Azusa MOTOMIYA ,  Shuhei WAKAMATSU

IPC: B01J29/76 ,  B01J37/10 ,  B01J37/00 ,  C07C4/06 ,  B01J37/04 ,  B01J37/06 ,  B01J29/90 ,  B01J38/12 ,  B01J21/08 ,  B01J37/30

Abstract: A lower olefin by using a zeolite catalyst, a composite catalyst capable of further extending the lifetime of catalytic activity, a method for producing the composite catalyst, a method for producing a lower olefin by using the composite catalyst, and a method for regenerating a composite catalyst in the method for producing a lower olefin are provided. The composite catalyst is a catalyst for producing a lower olefin from a hydrocarbon feedstock. This composite catalyst is constituted of a zeolite being a crystalline aluminosilicate containing gallium and iron or iron and further having a framework with 8- to 12-membered ring, and of silicon dioxide. By using the composite catalyst, a lower olefin can be continuously produced over a long period of time.

公开(公告)号：US20230405562A1

公开(公告)日：2023-12-21

申请号：US18460027

申请日：2023-09-01

Applicant: CHIYODA CORPORATION

Inventor： Shinya HODOSHIMA ,  Azusa MOTOMIYA

IPC: B01J29/46 ,  B01J37/10 ,  B01J37/30 ,  B01J37/28 ,  B01J37/04 ,  B01J37/08 ,  B01J37/00 ,  B01J35/00 ,  B01J35/10 ,  C07C4/06

CPC classification number: B01J29/46 ,  B01J37/10 ,  B01J37/30 ,  B01J37/28 ,  B01J37/04 ,  B01J37/082 ,  B01J37/0018 ,  B01J35/0026 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1023 ,  C07C4/06 ,  C07C2529/68

Abstract: Provided is a composite catalyst that contains a zeolite which is a crystalline aluminosilicate that contains gallium and iron and has a skeletal structure of an 8- to 12-membered ring; or a zeolite which is a crystalline aluminosilicate that contains iron but no gallium and has a skeletal structure of an 8- to 12-membered ring; silicon dioxide as a binder; and diphosphorus pentoxide.