Hydrothermal conversion of heavy oils and residua with highly dispersed catalysts
US4578181A · kind A · utility
49Cited by
3References
23Claims
0Family size
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Key dates
| Filing date | Jun 25, 1984 |
| Grant date | Mar 25, 1986 |
| Priority date | — |
| Expiry date | Jun 25, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G47/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process of preparing a highly dispersed (colloidal or submicron size) heterogeneous catalyst for the hydrothermal conversion of heavy oils and residua is described. The process comprises preparing a reverse micellar dispersion by mixing water, an organic solvent, and an ionic or neutral surfactant to which is added an aqueous solution of a metal salt. The metal salt is reduced to a colloidal dispersion of the catalyst in a mixed water-organic liquid phase. The colloidal catalyst is then blended into resid or heavy oil fractions, and the blend is treated under hydrothermal conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.