Desulfurization of heavy hydrocarbons and conversion of resulting hydrosulfides utilizing a transition metal oxide
US8696889B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2009 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | May 13, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G19/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is a process for desulfurizing hydrocarbon feedstreams with alkali metal compounds and regenerating the alkali metal compounds via the use of a transition metal oxide. The present invention employs the use of a transition metal oxide, preferably copper oxide, in order to convert spent alkali metal hydrosulfides in the regeneration of the alkali hydroxide compounds for reutilization in the desulfurization process for the hydrocarbon feedstreams. Additionally, in preferred embodiments of the processes disclosed herein, carbonates which may be detrimental to the overall desulfurization process and related equipment are removed from the regenerated alkali metal stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.