PROCEDURE FOR REFINEMENT OF OIL FROM HYDROGEN SULPHIDE Russian patent published in 2011 - IPC C10G7/00 

FIELD: oil and gas production.

SUBSTANCE: here is disclosed procedure of refinement of oil from hydrogen sulphide by its gas desorption with hydrogen gas purified from hydrogen sulphide in multi-stepped unit of column type. The procedure consists in dispersion of oil into fine drops with hydrogen gas scrubbed from hydrogen sulphide and supplied underneath a lower contact step, in interaction of oil and gas phases generating gas-liquid system at each contact step, and in transporting phases along steps in counter flow in the whole unit wherein oil is dispersed with fine-jet flows of gas. Interaction of phases generates gas-liquid system of high degree mono-dispersion at each contact step. The step is made out of a thin sheet reinforced with a frame and having punched elements. Oil is supplied and transported via the unit along adjacent steps with two equal flows from atop.

EFFECT: production of oil with residual contents of hydrogen sulphide not over 20 ppm at consumption of gas 3-7 nm³ per 1 t of oil without usage of chemical reagents.

4 cl, 3 ex, 1 tbl, 2 dwg