FIELD: oil and gas industry.
SUBSTANCE: this invention relates to processing of bituminous oils. The invention includes processes of dewatering, skimming of light oil products, deasphaltising. During processing dewatered bituminous oils is separated in process of skimming into light oil products and skimming residue, which is sent to deasphaltising by solution at temperature of 120-130°C, pressure of 4.0-4.5 MPa and volume ratio of solution and raw stock of (1.5-2):1, processes of light oils skimming and deasphaltising of skimming residue are performed so that after mixing of obtained light oil products and asphalt-free oil sulphur content in it does not exceed 1 % by weight, at that the obtained mixture complies with regulatory requirements to low-sulphur liquid fuel.
EFFECT: production of fuel with sulphur content not exceeding 1%.
1 dwg, 5 tbl
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Authors
Dates
2014-04-10—Published
2011-10-07—Filed