Selective removal of nitrogen-containing compounds from hydrocarbon mixtures
US4424121A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1982 |
| Grant date | Jan 3, 1984 |
| Priority date | — |
| Expiry date | Jul 30, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G25/003
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method is disclosed for reducing the nitrogen content of hydrocarbon liquids. The method comprises contacting the hydrocarbon liquid with a solid metal salt capable of selectively extracting nitrogen-containing compounds from the hydrocarbon liquid to thereby form a nitrogen-rich solid extract. Nitrogen-lean hydrocarbon liquid is then separated from the solid extract. The solid extract is washed with a solvent capable of selectively dissolving non-nitrogen-containing compounds entrained in the solid extract. The solid extract is then treated with a release agent for selectively dissolving nitrogen-containing compounds to thereby recover the metal salt. The presently preferred metal salt is cupric chloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.