Oil gas recovery processing system and oil gas recovery processing method

Abstract

The invention discloses an oil gas recovery processing system and an oil gas recovery processing method. The system comprises a cryogenic recovery system, an adsorption homogenization system and a biological catalytic oxidation system which are sequentially connected through a pipeline. The cryogenic recovery system comprises a cryogenic heat exchanger A and a cryogenic heat exchanger B which are connected in parallel, and a liquid nitrogen tank, a condensate tank and a nitrogen buffer tank which are connected with the cryogenic heat exchanger A and the cryogenic heat exchanger B. The adsorption homogenization system comprises an adsorption homogenization tank A and an adsorption homogenization tank B which are connected in parallel, and the adsorption homogenization tank A and the adsorption homogenization tank B are connected with an oil gas incoming pipeline arranged at the front end of the cryogenic recovery system through a desorption vacuum pump. The biological catalytic oxidation system comprises a biological catalytic oxidation box, a nutrient solution spraying device and an aeration fan, wherein the nutrient solution spraying device and the aeration fan are connected with the biological catalytic oxidation box, and biological stuffing and biological bacteria attached to the biological stuffing are arranged in the biological catalytic oxidation box. The system and the method disclosed by the invention are high in safety and free of fireproof spacing requirements, and oil and gas emission can reach the environment-friendly standard.

Description

technical field [0001] The invention relates to the technical field of oil and gas recovery and treatment, in particular to an oil and gas recovery and treatment system and an oil and gas recovery and treatment method. Background technique [0002] Methods to control VOCs emissions can be basically divided into two categories. The first type is to use physical methods to transfer VOCs from the gas phase to the liquid or solid phase to eliminate pollutants in the air, including condensation, absorption, adsorption, etc.; the second type is destruction methods, including thermal oxidation (TO) , Regenerative Thermal Oxidation (RTO), Catalytic Combustion (CO), Regenerative Catalytic Oxidation (RCO) and other high-temperature oxidation technologies and biocatalytic oxidation technologies under normal temperature and pressure, as well as photo-oxidation technology and low-temperature plasma technology. [0003] For the recovery and treatment of high-concentration oil and gas suc...

AI Technical Summary

Problems solved by technology

The combined technology of this physical method and thermal oxidation method can meet the strict environmental protection emission requirements, but this kind of catalytic oxidation furnace or regenerative oxidation furnace or direct heating furnace is an open flame equipment, which requires a large fire distance and has a large fire and explosion risk, thus limiting its use

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