Oil aftertreatment method of oil station

Abstract

The invention discloses an oil aftertreatment method of an oil station. The oil aftertreatment method of the oil station is characterized by comprising an intake buffer tank; the intake buffer tank isconnected with a compressor through a first pipe; the compressor is connected with a precooling heat exchanger through a second pipe; the precooling heat exchanger is connected with an evaporator through a third pipe; an evaporator is connected with a gas-liquid separator through a fourth pipe; a gas phase outlet at the top of the gas-liquid separator is connected with a deep cooling heat exchanger through a fifth pipe; the deep cooling heat exchanger is connected with a deep cooling oil-gas separator through a sixth pipe; the deep cooling oil-gas separator is connected with an absorbing tower through a seventh pipe; the absorbing tower is connected with a deep cooling heat exchanger through an eighth pipe; the deep cooling heat exchanger is connected with the precooling heat exchanger through a ninth pipe; a cold supply outlet of the precooling heat exchanger is connected with an absorbing column through a tenth pipe; and the absorbing column is connected with an emptying column through a corresponding pipe. The oil aftertreatment method of the oil station has the advantages of high working efficiency, good oil recovery effect, treatment of oil by multiple modes and incapabilityof polluting the atmosphere by emitted tail gas.

Description

technical field [0001] The invention relates to the technical field of recovery of volatile gas in a gas station, in particular to a post-treatment method for oil and gas in a gas station. Background technique [0002] When loading and unloading oil products in oil tanks at gas stations, the discharged oil gas contains volatile components of oil products. If it is not recovered, it will not only cause great environmental pollution, but also cause great economic losses. At present, the recovery of oil and gas in the market is usually directly emptied after simple treatment, and some gas stations use the method of combining multiple equipments. After being discharged, it still causes air pollution. To sum up, it is difficult to completely recover the volatile gas of oil products in the gas station, which not only wastes the refined oil in the station, but also causes serious pollution to the atmosphere. Contents of the invention [0003] The purpose of the present invention...

AI Technical Summary

Problems solved by technology

[0002] When loading and unloading oil products in oil tanks at gas stations, the discharged oil gas contains volatile components of oil products. If they are not recovered, it will not only cause great environmental pollution, but also cause great economic losses.

At present, the recovery of oil and gas in the market is usually directly emptied after simple treatment, and some gas stations use the method of combining multiple equipments. After being discharged, it still causes air pollution. To sum up, it is difficult to completely recover the volatile gas of oil products in the gas station, which not only wastes the refined oil in the station, but also causes serious pollution to the atmosphere.

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