Modern mercaptan removal technologies of liquefied petroleum gases, kerosene and sulfur-alkaline waste treatment

With the introduction of Euro-5 emission standard requirements applying to sulfur content in automobile gasolines with the norm being no more than 10ppm, the requirements relating to total sulfur content in liquefied petroleum gases used as fuel for motor vehicles or as raw materials for high octane additive synthesis for automobile gasolines (MTBE or alkylate) have become dramatically more stringent. With processes of oil conversion becoming deeperand introduction of the pyrolysis process and the coking process for heavy high sulfur petroleum cuts, the sulfur content in the hydrocarbon gases released and gasoline cuts has drastically increased and resulted in increased volume of generated sulfuric alkaline discharges in the refinery. In this context, it has now become more topical to equip pyrolysis and coking facilities with units for local decontamination of sulfuric alkaline discharges before they are dumped into the all-plant sewerage system.
Materials and methods
Polymer based Catalysts KSM and KSM-X. Alkaline extraction method.
Results
Summarizing what has been set out above, it can be concluded that topical solutions of environmental problems, energy and resources conservation as well as the issues relating to reducing Russia’s dependence on Western technologies in oil refining and petro-chemistry require broader use of effective Russian technologies of desulfurization to which we can refer the desulfurization processes based on KSM and KSM-X catalysts proposed by us.