METHOD OF DESTRUCTION OF INTERMEDIATE EMULSION LAYER CAUSED BY OIL DEHYDRATION Russian patent published in 2008 - IPC C10G33/04 C08G65/28 B01F17/02 

FIELD: organic chemistry.

SUBSTANCE: invention refers to method of destruction of intermediate emulsion layer caused by oil dehydration. Destruction is carried out by processing of intermediate emulsion layer with acid reagent containing inhibited hydrochloric acid and surface-active substance, heating and settling and is characterized by applied as surface-active substance either water-oil-soluble surface-active substance selected from: oxyethylized monoalkylphenols based on propylene trimers with oxyethylation degree 6-12, block copolymers of ethylene and propylene oxides based on glycerin, oxyethylized composition of mono- and dialkylphenols of grade OP-7, or water-soluble surface-active substance selected from: sulphanole, quaternary salts of ammonium in isopropanol, or mixture of water-oil-soluble and water-soluble surface-active substance containing, oxyethylized monoalkylphenols based on propylene trimers with oxyethylation degree 6-12 and quaternary salts of ammonium, additionally used solvent selected from: methanol, ethanol, propanol, isopropanol, butylcellosolve, acetone, and added with water at following relations, mass%: inhibited hydrochloric acid 6-20 water-oil-soluble or water-soluble surface-active substance or their mixture as specified 0.1-7.0 solvent 3-20 - water other. Application of this method enables to increase stripping depth of hydrocarbon from stable oil emulsion.

EFFECT: increasing of stripping depth of hydrocarbon from stable oil emulsion.

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