Desulfurization of heavy hydrocarbons and conversion of resulting hydrosulfides utilizing copper sulfide
US8968555B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2009 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Oct 10, 2032 |
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 copper sulfide reagent. The present invention employs the use of a copper sulfide reagent to convert alkali metal hydrosulfides in the generation or regeneration of the alkali hydroxide compounds which may be utilized in a desulfurization process for hydrocarbon feedstreams. Additionally, in preferred embodiments of the processes disclosed herein, carbonates which form as byproducts of the desulfurization process, and are non-regenerable with copper sulfide, are removed from the alkali hydroxide stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.