METHOD AND APPARATUS FOR FORMATION OF UP-GOING STREAMS OF VAPORS IN FLASHING-OFF SECTIONS OF FRACTIONATING COLUMNS AND STRIPPING TOWERS AND METHOD OF VAPOR-GAS MIXTURE HEATING Russian patent published in 1997 - IPC

FIELD: oil and oil products processing and distillation. SUBSTANCE: aim is to improve influence on ecology, quality of final products and power costs saving, to increase safety of production and productivity. As agent, that creates up-going streams of vapors in flashing-off sections of fractionating columns and stripping towers, they use vapors and gasses from upper overflow of vapors and gasses of columns and towers, located between plates vapors-gas mixture from concentrating section of the columns and towers and vapors and gasses from corresponding to the columns and towers water-gas separators. The agents (vapor-gas mixture of hydrocarbons), that create up-going streams of vapors in flashing-off sections of fractionating columns and stripping towers, are oil products produced by the aggregates, that is they are not specially produced for the purposes from oil and oil products. Heat from top and from concentrating section of fractionating columns is utilized without usage of any regenerating equipment. The method does not require additional apparatus-aggregates equipment besides hydrospraying ejectors. As agents, that create active spray in ejectors, residual products of corresponding fractionating columns and stripping towers are used. Residual products used in ejectors to create active spray are heating agent creating up-going streams of vapors. Method allows the whole gasoline to extract in fractionating column and from top of other fractionating column to extract kerosene and residual fuel oil to bring to semi-asphalt (asphalt) conditions. EFFECT: improved effect on ecology, products quality, power costs saving, incurred safety of production and productivity. 6 cl, 1 dwg