METHOD FOR DEMERCAPTANISATION OF HYDROCARBON MATERIAL Russian patent published in 2016 - IPC C10G19/02 C10G19/08 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of alkaline demerptanisation of hydrocarbon material with subsequent oxidation-catalyst regeneration of mercaptide-saturated alkaline agent or direct oxidation of mercaptans contained in hydrocarbon raw material with atmospheric oxygen in presence of an alkaline agent and a heterogeneous catalyst for oxidation of sulphur compounds. Method is characterised by that alkaline agent used is aqueous solution of alkali, containing polar organic compounds, formed due to deep oxidation of mercaptides by treatment of mercaptide-containing alkaline solution with atmospheric oxygen in presence of highly active heterogeneous catalyst KSM-X on a polymer support. High activity of KSM-X catalyst during oxidative regeneration mercaptide-containing alkaline solution and efficiency of obtained alkaline agent due to water-soluble polar oxygen-containing products of oxidation mercaptides contained therein simplifies technology of process of demercaptanisation of hydrocarbons, significantly reduces size of process equipment, reduces capital and operating costs for its implementation as compared to existing methods.

EFFECT: demercaptanisation of hydrocarbon material.

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