Large-processing-capacity oil and gas recovery method

Abstract

The invention discloses a large-processing-capacity oil and gas recovery method. The method is suitable for large-scale treatment and recovery of various oils and gases. According to the invention, oil and gas are subjected to compression, condensation and adsorption, such that recyclable components in the oil and gas can be recovered. Also, the concentrations of various toxic and harmful components are reduced to values meeting emission indicator requirements, such that atmospheric pollution can be reduced. The method provided by the invention is especially suitable for large-processing-capacity oil and gas recovery. With the method, equipment and pipeline sizes can be substantially reduced; device land occupation can be reduced; investment can be saved; operation is convenient; flexible configuration and adjustment of the condensation process can be realized; and operation cost can be reduced. Compared with traditional oil and gas treatment devices, the device provided by the invention has the advantages of large processing capacity, light weight, low energy consumption, high processing efficiency, and low device investment.

Description

technical field [0001] The invention belongs to the technical field of oil and gas recovery, in particular to a method for recovering oil and gas with a large processing capacity, which can be widely used in oil storage and transportation, oil refining, petrochemical, chemical and other occasions requiring large-scale treatment of oil and gas. Background technique [0002] People are paying more and more attention to the hazards to the environment, health and safety caused by volatilized oil and gas such as gasoline and benzene oil products during storage and transportation. As early as the 1960s, foreign developed countries conducted research on the recovery technology of oil and gas lost by evaporation in the process of loading vehicles and ships. In terms of oil and gas recovery, EU countries have made clear regulations, and some countries have also implemented phased financial subsidies or tax relief for oil depots and gas stations equipped with oil and gas recovery devi...

AI Technical Summary

Problems solved by technology

[0008] 1) The energy consumption of the condensation method is relatively large, and the requirements for equipment materials and heat preservation are strict, and the investment cost and operation cost of the device are relatively high. In addition, the existence of moisture in the exhaust gas (oil gas) is easy to cause frost and ice in the system;

[0009] 2) Due to the characteristics of the process and equipment itself, the adsorption method cannot handle too much, and the thermal effect of adsorption is obvious, which may easily cause the deterioration of the adsorbent or even catch fire;

[0010] 3) The absorption method has complex solvent regeneration process and high operating costs;

[0011] 4) Membrane separation method has a high cost due to the high manufacturing cost of membrane materials and membrane components and relatively short service life;

[0012] 5) The integrated process can combine the advantages of the above technologies and strive to avoid their disadvantages. However, in large-scale waste gas treatment (oil and gas recovery), it is inevitable that the equipment will occupy a large area and high investment costs due to the large diameter of the pipeline and complicated process flow. question

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