Patent ID: 8034159

Claim:
A method for cleaning hydrocarbons out of a gas-vapor medium formed while storing oil or gasoline in a storage tank or filling a container with oil or gasoline, the method including: supplying a liquid medium by a pump into a gas-liquid jet apparatus; pumping out a gas-vapor medium by the gas-liquid jet apparatus from a container filling with oil or gasoline or from an oil or gasoline storage tank and compressing the gas-vapor medium in the gas-liquid jet apparatus due to energy of the liquid medium supplying by the pump; supplying the gas-vapor medium and liquid medium mixture formed in the gas-liquid jet apparatus to a separator; separating the gas-vapor medium and liquid medium mixture into a gaseous phase and a liquid medium in the separator; supplying the liquid medium from the separator into the container filling with oil or gasoline or into the oil or gasoline storage tank; supplying oil or gasoline to an inlet of the pump or to the separator from the oil or gasoline storage tank or from a pipeline for pumping oil or gasoline; supplying the gaseous phase from the separator into a second gas-liquid jet apparatus; supplying the liquid medium by a second pump into the second gas-liquid jet apparatus and compressing the gaseous phase in the second gas-liquid jet apparatus due to energy of the liquid medium; supplying the gaseous phase and liquid medium mixture formed in the second gas-liquid jet apparatus to a second separator; separating the gaseous phase and liquid medium mixture into a gas medium and a liquid medium in the second separator; supplying the liquid medium from the second separator into the container filling with oil or gasoline or into the oil or gasoline storage tank; supplying oil or gasoline to an inlet of the second pump or to the second separator from the oil or gasoline storage tank or from the pipeline for pumping oil or gasoline; supplying the gas medium from the second separator into a third gas-liquid jet apparatus; supplying an absorbent by a third pump into the third gas-liquid jet apparatus and carrying out the process of absorbing hydrocarbons out of the gas medium by the absorbent; supplying the gas medium and absorbent mixture formed in the third gas-liquid jet apparatus to a third separator; maintaining a pressure in the third separator within a range of from 0.7 MPa to 2.5 MPa and separating the gas medium and absorbant mixture into a cleaned from hydrocarbons gas medium and a gas medium hydrocarbon-contained absorbent; removing the cleaned from hydrocarbons gas medium from the third separator and supplying the gas medium hydrocarbon-contained absorbent from the third separator into a desorber; generating a pressure in the desorber to be lower than the pressure in the third separator; and extracting gas medium hydrocarbons from the gas medium hydrocarbon contained absorbent supplied to the desorber; supplying the absorbent from the desorber into an inlet of the third pump.