FIELD: chemistry.
SUBSTANCE: invention relates to a method of cleaning diesel fuel and is meant to improve quality of both standard and sub-standard fuel. The invention relates to a method which involves mixing diesel fuel with 0.1-0.5% of 10% aqueous carbamide solution. The mixture is settled for 2-3 hours. The aqueous carbamide solution is distributed in the entire volume of the fuel. Resin trace constituents are enlarged and precipitate. At the next step, the top part of the mixture is decanted, heated to 90±5°C, followed by centrifuging, where carbamide is dispersed in the fuel when coming out of the nozzle and the remaining resins, mechanical impurities and water are removed. Centrifuging is carried out for 10-20 minutes.
EFFECT: improved lubricating properties of the cleaned diesel fuel.
1 dwg, 1 tbl
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