Hydrogenation catalyst for coal tar, a method of hydrogenation of coal tar with use of such catalyst, and a method of producing super needle coke from the hydrogenation product of coal tar
US4855037A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1988 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Jan 28, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10C1/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Described is a catalyst used for hydrogen treatment of coal tar characterized in that about 10 to 30 weight percent of Mo oxides as first catalyst component and about 1 to 6 weight percent of Ni and/or Co as second catalyst component, both relates to the total catalyst weight, are supported on a porous inorganic substrate consisting essentially of alumina or silica alumina, and in that the mean pore size is about 8 to 18 nm, the pore size distribution is such that ______________________________________ pore size nm volume ratio cc/g ______________________________________ 3.5-5 Less than 0.1 5-8 Less than 0.3 8-18 0.2-0.2 18-30 Less than 0.2 over 30 Less than 0.1 ______________________________________ and the total pore surface is higher than about 100 m.sup.2 /g. Also described are the method of hydrogen treatment with use of the catalyst, and the method of producing a super needle coke suitable for the preparation of the graphite electrode, which consists in subjecting the hydrogenated oil resulting from such hydrogen treatment to delayed coking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.