METHOD FOR REMOVING HYDROCARBONS FROM GAS-VAPOR MIXTURE FORMED ON STORAGE OF PETROLEUM OR PETROLEUM PRODUCTS OR WHEN FILLING TANKS BY THE LATTER, AND PUMP- EJECTOR INSTALLATION FOR IMPLEMENTING THE METHOD

摘要

FIELD: fluidics. SUBSTANCE: liquid and gas-vapor mixture are fed into jet device and then formed mixture is fed into separator to be separated into gas and liquid media. Part of the latter is withdrawn from flow circuit and the former is absorbed in column by hydrocarbon-containing liquid with saturated vapor pressure inferior to that of petroleum or petroleum product. Gas phase is removed and hydrocarbon-containing liquid with hydrocarbons dissolved therein is mixed with liquid medium. Part of liquid medium in flow circuit is transferred into system wherein absorbed hydrocarbons are isolated from liquid medium and remaining hydrocarbon-containing liquid is fed into column. Installation has pump, liquid-gas jet device, and separator. Liquid- medium inlet of device is connected to pump discharge side, gas-vapor-mixture inlet of device is connected to petroleum or petroleum product tank, and device outlet is connected to separator. Liquid-phase outlet of separator is connected to inlet side of pump. Installation is provided with absorption column and system foe isolation of absorbed hydrocarbons from liquid medium. Column communicates with gas-phase outlet of separator and top part of column is linked to purified gas phase-discharge pipeline. Above -indicated system includes rectification column provided with liquid phase- supply pipeline and hydrocarbon-containing liquid- and gas medium-discharge pipelines. EFFECT: increased economical efficiency of purification. 9 cl, 1 dwg