FUEL PRODUCTION PROCESS (OPTIONS) Russian patent published in 2005 - IPC

FIELD: alternate hydrocarbon-based fuels.

SUBSTANCE: invention relates to production of various-destination water-fuel emulsions involving utilization of industrial wastes as well as oil residues, hydrocarbon components, and water-containing components (mazut-polluted water, worked out lubrication fluids, and the like) for use in processing and application of liquid and thickened hydrocarbons (petroleum, mazut, diesel fuel, vegetable and mineral oils, oil slimes, mazut slimes, paraffins, asphaltenes, and so on). Production of fuels from oil residues and hydrocarbon component involves preheating thereof, removal of suspended impurities and mixing under turbulent conditions to distribute hydrocarbon component throughout the bulk of oil residue with homogeneity factor at least 0.5, while mixing temperature for oil residue and hydrocarbon component differ from each other no more than by 10°C. Mixed product is then homogenized on rotary mechanical disperser such that maximum size of dispersed phase particles does not exceed 50 μm at average size 1-15 μm. Thereafter water or water-containing component is added to homogenized mixture in rotary mechanical disperser operated under turbulent conditions to distribute water or water-containing component in the bulk of mixture with homogeneity factor at least 0.5 and at temperature difference of streams not exceeding 10°C. Thus prepared fuel is characterized by average particle size 1-15 μm with no particles greater than 50 μm and summary water content from 5 to 60%. Water component is, in particular, selected from mazut-polluted waters, spent lubrication fluids, and low-grade water. Invention further provides a similar method for producing fuel from distillate fractions boiling up to 180°C and higher characterized by that homogenized mixture is charged with water and surfactant under turbulent conditions to distribute water throughout the bulk of mixture with homogeneity factor at least 0.5 and at temperature difference of streams not exceeding 100°C. Mixture is then homogenized on rotary mechanical disperser such that maximum size of water particles in finished fuel does not exceed 50 μm at average size 1-10 μm. In this case, as water component with surfactant, spent lubrication fluid is used.

EFFECT: enabled preparation of stable water fuels containing up to 70% of finally dispersed water.

9 cl, 4 ex