METHOD OF SEPARATING COLOURED PARTICLES AND/OR ASPHALTENIC ADMIXTURES FROM HYDROCARBON MIXTURES Russian patent published in 2008 - IPC C10G31/11 

FIELD: chemistry.

SUBSTANCE: invention pertains to method of separating painted bodies and/or asphaltenic admixtures from a hydrocarbon mixture using a membrane with an input side and an output side, through bringing the hydrocarbon mixture into contact with the input side of the membrane, where between the input side and the output side of the membrane, a pressure fall is formed. Due to this part of the hydrocarbon mixture goes through from the input side to the output side and at the output side of the membrane, a hydrocarbon permeate is obtained with lower content of coloured particles and/or asphaltenic admixtures. The hydrocarbon permeate is taken from the output side of the membrane. Tapping of hydrocarbon permeate from the output side of the membrane at defined time intervals is stopped. The method does not require a complex operation of cleaning by counterflow, as well as special interference at the input side of the membrane.

EFFECT: lower pressure fall at the membrane.

17 cl, 1 ex, 1 tbl, 1 dwg