Process for the desulfurization of heavy oils and bitumens

Details Process for the desulfurization of heavy oils and bitumens Process for the desulfurization of heavy oils and bitumens

C - Chemistry, Metallurgy

10

G

C10G 67/02 (2006.01)

Patent

CA 2707688

The present invention relates to a process for desulfurizing bitumen and other heavy oils such as low API gravity, high viscosity crudes, tar sands bitumen, or shale oils with alkali metal compounds under conditions to promote in-situ regeneration of the alkali metal compounds. The present invention employs the use of superheated water and hydrogen under conditions to improve the desulfurization and alkali metal hydroxide regeneration kinetics at sub-critical temperatures.

La présente invention concerne un procédé de désulfurisation du bitume et autres huiles lourdes telles que les bruts à basse densité A.P.I., haute viscosité, le bitume de sables asphaltiques, ou les huiles de schiste avec des composés de métaux alcalins dans des conditions qui favorisent la régénération in situ des composés de métaux alcalins. La présente invention utilise une eau surchauffée et de l'hydrogène dans des conditions qui améliorent la désulfurisation et la cinétique de régénération des hydroxydes de métaux alcalins à des températures sous-critiques.

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