Supported carbon-containing molybdenum and tungsten sulfide catalysts, their preparation and use
US4430443A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1982 |
| Grant date | Feb 7, 1984 |
| Priority date | — |
| Expiry date | Jul 20, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J37/086
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A supported carbon-containing molybdenum sulfide and tungsten sulfide catalyst useful for conducting methanation and hydrotreating reactions, principally the latter, can be formed by compositing a preselected quantity of a porous, refractory inorganic oxide with a complex salt characterized by the formula EQU B.sub.x [MO.sub.y S.sub.4-y ] where B is an organo or hydrocarbyl substituted diammonium ion, an organo or hydrocarbyl substituted ammonium ion or quaternary ammonium ion, or an ionic form of a cyclic amine containing one or more basic N atoms, x is 1 where B is an organo or hydrocarbyl substituted diammonium ion, or 2 where B is an organo or hydrocarbyl substituted ammonium or quaternary ammonium ion or an ionic form of a cyclic amine containing one or more basic N atoms, M is molybdenum or tungsten, and y is 0, or a fraction or whole number ranging up to 3, and heat decomposing the salt of said catalyst precursor composite in the presence of hydrogen sulfide and hydrogen to form said supported carbon-containing molybdenum sulfide or tungsten sulfide catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.