Desulfurizing a fuel with alkanol-alkali metal hydrosulfide...

Details Desulfurizing a fuel with alkanol-alkali metal hydrosulfide... Desulfurizing a fuel with alkanol-alkali metal hydrosulfide...

C - Chemistry, Metallurgy

10

G

196/222

C10G 19/02 (2006.01) C10G 29/10 (2006.01)

Patent

CA 1143687

ABSTRACT Petroleum crude and certain liquid distillate fractions derived there- from, and other sulfur containing fuels or residues are reduced in sulfur con- tent by intimately contacting the fuel or residues with alkanol solutions of al- kali metal hydrosulfides, at temperatures and pressures from ambient up to the critical temperature of the alkanol for from 1 to 20 minutes. Thereafter, the fuel is caused to separate from the alkanol solution by the addition of water. A liquid-liquid separation separates desulfurized fuel from the alkanol solu- tion. Hydrogen sulfide formed in the process is used to regenerate alkali met- al hydrosulfide for use in desulfurizing additional petroleum fuel.

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