Novel combined oil-gas recovery system and oil-gas recovery method

Abstract

The invention discloses a novel combined oil gas recovery system and an oil gas recovery method. The oil gas recovery system comprises an oil gas adsorption / desorption module I, an oil gas adsorption / desorption module II, an oil gas inlet pipeline, a desorbed gas inlet pipeline, a desorbed oil gas discharge pipeline and a tail gas discharge pipeline, wherein the oil gas adsorption / desorption module I and the oil gas adsorption / desorption module II are consistent in structure, and each comprise a tank body, a desorption inlet, a desorption outlet, an oil gas inlet and a tail gas outlet; a fan,an electromagnetic valve and an oil gas concentration meter which are connected in sequence are arranged on the oil gas inlet pipeline. According to the novel combined oil gas recovery method, the desorption inlets and the desorption outlets which are horizontally opposite are uniformly distributed in the side surface of the tank body, so that desorption gas flow in the horizontal direction is uniformly distributed, an adsorbent is uniformly heated, and the desorption efficiency is improved; besides, the oil gas adsorption / desorption module I and the oil gas adsorption / desorption module II areswitched between an adsorption working mode and a desorption working mode under the action of the control module, and continuous non-stop operation of oil gas recovery is achieved.

Description

technical field [0001] The invention belongs to the technical field of oil and gas recovery, and in particular relates to a novel combined oil and gas recovery system and an oil and gas recovery method. Background technique [0002] With the development of economy and industry, the consumption of gasoline, diesel and other fuels is constantly increasing rapidly, and the fuel is highly volatile, and it is inevitable that oil and gas will be generated during the tank farm, tanker loading, unloading, and fuel use. Oil and gas treatment Improper chemical smog will be formed and discharged into the atmosphere, endangering safe production and polluting the environment. At the same time, the discharge of oil and gas must meet the emission standards stipulated by the state, so oil and gas must be recovered. The traditional tank body used for oil and gas recovery adopts the bottom-in and top-out method, and the desorption gas enters the desorption tank from one inlet for desorption, ...

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Problems solved by technology

[0002] With the development of economy and industry, the consumption of gasoline, diesel and other fuels is constantly increasing rapidly, and the fuel is highly volatile, and it is inevitable that oil and gas will be generated during the tank farm, tanker loading, unloading, and fuel use. Oil and gas treatment Improper chemical smog will be discharged into the atmosphere, endangering safe production and polluting the environment. At the same time, the discharge of oil and gas must meet the emission standards stipulated by the state, so oil and gas must be recovered

The traditional tank body used for oil and gas recovery adopts the bottom-in and top-out method, and the desorption gas enters the desorption tank from one inlet for desorption, but the desorption effect is not good when vacuuming and desorbing from one port, and the desorption time is relatively long , the desorption efficiency is low, and the use requirements cannot be met

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