HYDROCARBON FEEDSTOCK PRELIMINARY DISTILLATION PROCESS Russian patent published in 2003 - IPC

Abstract RU 2200182 C2

FIELD: petroleum processing. SUBSTANCE: invention relates to processing of petroleum on lowcapacity modular installations to yield motor fuels from limited local feedstock sources. Fractionation of petroleum is performed using cyclonic phase separator and contact evaporator either to produce, in continuous mode, gasoline fraction and stripped heavy residue or to produce periodically gasoline fraction, diesel fuel, and fuel oil. Feedstock is heated in recuperative heat-exchangers and separated in phase separator into liquid and gas phases. Liquid phase in dispersed state enters, in countercurrent mode, vapor space of contact evaporator. Vapor phase is further heated to a temperature by 30-50 C superior to that of liquid phase and fed, as stripping agent, through bubble distributor into liquid phase bulk located in bottom zone of contact evaporator. Gasoline fraction is obtained by condensation of vapor phase from evaporator. To obtain diesel fuel, stripped residue is circulated through steam preheater and phase separator, which results in that diesel fuel vapors overheated in contact evaporator to 250-300 C are used to strip fuel oil (residual fraction). EFFECT: simplified hardware implementation and improved economical and environmental characteristics. 3 cl, 1 dwg

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RU 2 200 182 C2

Authors

Kirilenko V.N.

Brulev S.O.

Dates

2003-03-10Published

2001-04-10Filed