Hydrogen tetrachloroaluminate as a co-catalyst with sodium tetrachloroaluminate for the conversion of heavy hydrocarbons
US4505810A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1983 |
| Grant date | Mar 19, 1985 |
| Priority date | — |
| Expiry date | Dec 30, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G9/34
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for producing lower average molecular weight products from heavy liquid hydrocarbons is provided comprising contacting the feed material in the presence of a co-catalyst system comprising a molten salt of sodium tetrachloroaluminate (NaAlCl.sub.4) and hydrogen tetrachloroaluminate (HAlCl.sub.4) at a pressure of from about 0.8 to about 140 atm (81 to about 14185 kPa) and a temperature of from about 200.degree. C. to about 550.degree. C. According to the present invention use of the HAlCl.sub.4 as a co-catalyst with NaAlCl.sub.4 results in increased yields of lower average molecular weight products and improved levels of denitrogenation and desulfurization. The elements of the co-catalyst system may be prepared separately and mixed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.