公开(公告)号：US10745628B2

公开(公告)日：2020-08-18

申请号：US15700089

申请日：2017-09-09

Applicant: CHIYODA CORPORATION

Inventor： Kenichi Imagawa ,  Haruto Kobayashi ,  Akihiro Muto ,  Shinichi Inoue

IPC: C10G45/48 ,  B01J23/755 ,  C07C5/10 ,  C07C13/18 ,  C01G23/08 ,  B01J21/04 ,  B01J35/10 ,  B01J37/02 ,  B01J21/06 ,  C01G53/04 ,  B01J37/18 ,  C01F7/02 ,  C01F7/34 ,  C01G23/04 ,  G01N23/20

Abstract: A hydrogenation catalyst with a small amount of supported metal that is excellent in stability and inhibition of side reactions is provided. The catalyst hydrogenates an aromatic hydrocarbon compound into an alicyclic hydrocarbon compound, and a Group X metal represented by nickel is supported in a composite support including at least alumina and titania. The composite support preferably includes at least an alumina substrate coated with titania. It is also preferable that the Group X metal is prereduced by hydrogen. In the case that the Group X metal is nickel, the nickel content is preferably 5-35 wt % as nickel oxide in the catalyst. The substrate includes, for example, a porous structure formed by a plurality of needle-shaped or column-shaped intertwined three-dimensionally.

公开(公告)号：US10071370B2

公开(公告)日：2018-09-11

申请号：US14411083

申请日：2013-05-16

Applicant: CHIYODA CORPORATION

Inventor： Shinichi Inoue ,  Yukitaka Wada ,  Akihiro Muto

IPC: B01J38/52 ,  B01J38/12 ,  B01J27/19 ,  B01J27/28 ,  C10G45/04 ,  B01J38/02 ,  B01J38/50 ,  B01J23/882 ,  B01J21/04 ,  B01J21/06 ,  B01J21/20 ,  B01J31/38 ,  B01J31/40 ,  B01J38/48

CPC classification number: B01J38/52 ,  B01J21/04 ,  B01J21/063 ,  B01J21/20 ,  B01J23/882 ,  B01J27/19 ,  B01J27/28 ,  B01J27/285 ,  B01J31/38 ,  B01J31/4053 ,  B01J38/02 ,  B01J38/12 ,  B01J38/48 ,  B01J38/50 ,  C10G45/04 ,  C10G2300/708

Abstract: Provided is a method of reactivating a used titania catalyst for hydrogenation treatment, capable of improving the catalytic activity of the used titania catalyst for hydrogenation treatment that is obtained by supporting a catalyst component on a titania support and exhibits reduced catalytic activity after having been used for hydrogenation treatment of a hydrocarbon oil, to a level comparable to that of a newly prepared fresh titania catalyst before use. The method of reactivating a used titania catalyst for hydrogenation treatment, the used titania catalyst for hydrogenation treatment being obtained by supporting a catalyst component on a titania support and exhibiting reduced catalytic activity after having been used for hydrogenation treatment of a hydrocarbon oil, includes: a coke removal step of removing a carbonaceous component on a surface of the used catalyst by heating the catalyst in an oxygen-containing gas atmosphere; an impregnation step of impregnating the carbonaceous component-removed catalyst obtained by the coke removal step with a saccharide-containing solution; and a drying step of drying the saccharide-impregnated catalyst obtained by the impregnation step, to obtain a catalyst in which a saccharide is supported.