Passivation device of 'adsorption method' oil-gas recovery system

Abstract

The invention relates to a passivation device of an 'adsorption method' oil-gas recovery system to mainly solve the problem that the temperature is greatly raised in the prior art. According to the technical scheme of the invention, the passivation device of the 'adsorption method' oil-gas recovery system, provided by the invention, comprises at least two adsorption tanks, a vacuum pump, a condensing unit and a buffer tank, wherein a gas inlet pipeline, a passivation gas and inert gas inlet pipeline and a vacuumizing pipeline are arranged at the bottom of each adsorption tank respectively; outlet pipelines at the top of each adsorption tank are converged into a gas discharge pipeline; one end of the vacuumizing pipeline is connected with an inlet of the vacuum pump; an outlet of the vacuum pump is connected with the buffer tank; an outlet of the buffer tank is connected with an inlet of the condensing unit; a secondary return air pipeline arranged on the condensing unit is connected with a passivation gas inlet pipeline at the bottom of each adsorption tank; and a condensate conveying pipeline is also arranged at the lower part of the condensing unit. By adopting the technical scheme, the problem is well solved, and the passivation device can be used for passivation of an adsorbent of the oil-gas recovery system.

Description

technical field [0001] The invention relates to a passivation device of an adsorption method oil gas recovery system. Background technique [0002] The "adsorption method" oil and gas recovery system is the most widely used oil and gas recovery method in the field of oil and gas recovery, with simple process, low energy consumption and high treatment efficiency. CN201210428430.4 discloses a method for desorbing oil gas or volatile gas with an adsorbent for recovery of oil gas or volatile gas, which includes: the first step, the adsorbent equipped with adsorbent that has absorbed oil gas or volatile gas The agent tank is connected with the vacuum unit, the intake valve at the bottom of the adsorbent tank is closed, the exhaust valve and the backflush valve at the top of the adsorbent tank are closed; in the second step, the vacuum unit is used to perform vacuum desorption on the adsorbent tank to achieve adsorption The desorption process of the agent. [0003] However, sinc...

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is the problem of large temperature rise in the prior art, and a new passivation device for the adsorption oil gas recovery system is provided

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