Method for the liquid phase hydrotreatment of heavy hydrocarbons in the presence of a dispersed catalyst
US4756821A · kind A · utility
16Cited by
3References
9Claims
0Family size
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Key dates
| Filing date | Feb 10, 1987 |
| Grant date | Jul 12, 1988 |
| Priority date | — |
| Expiry date | Feb 10, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G67/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hydrotreatment method, for example, hydroviscoreduction or hydrodesulfurization in which the charge of hydrocarbons is reacted with hydrogen in contact with a catalyst finely dispersed in the liquid phase. To separate the product from the catalyst, the effluent freed from its accompanying free gas is passed along, and in contact with the upstream wall of a porous inorganic membrane. The oil that has not been filtered contains a concentrate of catalyst and is recycled to the hydrotreatment reactor. The filtered oil constitutes the product of the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.