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Oil gas comprehensive recovery method

A recovery method, oil and gas technology, applied in separation methods, chemical instruments and methods, and dispersed particle separation, etc., can solve the problems of gas ratio limitation in recovery efficiency, high operating costs, complex devices, etc., achieve simplification of absorption devices, and improve oil and gas recovery The effect of efficiency and space saving

Active Publication Date: 2014-04-02
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Aiming at the deficiencies of the prior art, the present invention provides a method for comprehensive recovery of oil and gas. The method of the present invention solves the problems of complex devices, high investment and high operating costs in the prior art; The problem of tower liquid gas ratio limitation

Method used

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  • Oil gas comprehensive recovery method

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Embodiment 1

[0027] In this embodiment, the source of oil and gas is oil and gas with a volume content of 30% produced during gasoline storage and sales, and the oil and gas volume is 80Nm 3 / h, low-temperature diesel absorbent is used for absorption, the rich absorption oil is regenerated by vacuum heating (temperature 60°C, absolute pressure 10KPa), the regeneration is concentrated regeneration gas, the pressure is raised to 1000Pa (gauge pressure), and cooled to about 40 with cooling water ℃. The cooled concentrated regenerated gas uses gasoline as the absorbent, the gas-liquid mixing pump as the absorption equipment, and the gas-liquid mixing pump occupies an area of ​​about 0.8m 2, the power is about 15kW, the gasoline absorbent comes from the bottom outlet of the gasoline storage tank (tank height 15m), the temperature is 32°C, and the ratio of the mass flow rate of gasoline drawn from the storage tank to the mass flow rate of the concentrated regeneration gas is 40. Gasoline and co...

Embodiment 2

[0029] In this embodiment, the source of oil and gas is oil and gas with a volume content of 30% produced in the gasoline production process, and the amount of oil and gas is 100Nm 3 / h, using activated carbon adsorption device for recovery and treatment, the adsorption device after absorbing oil and gas is vacuum regenerated (absolute pressure 500Pa), vacuum regeneration to obtain concentrated regeneration gas, the pressure of the concentrated regeneration gas at the outlet of the vacuum pump is 500Pa (gauge pressure), 40 ℃. Gasoline is used as the absorbent for the concentrated regeneration gas, and the gas-liquid mixing pump is used as the absorption equipment. The gas-liquid mixing pump occupies an area of ​​about 0.8m 2 , the power is about 16kW, the gasoline absorbent comes from the bottom outlet of the gasoline storage tank (tank height 10m), the temperature is 35°C, and the ratio of the mass flow rate of gasoline drawn from the storage tank to the mass flow rate of the ...

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Abstract

The invention discloses an oil gas recovery method, which comprises an adsorption tank or an absorption tower. In the adsorption tank or the absorption tower, an adsorbent or an absorbent fixes oil gas in the adsorbent or the absorbent; then, the saturated adsorbent or the saturated absorbent is regenerated by adopting a vacuum regeneration manner and / or a heating regeneration manner; concentrated regenerated gas is obtained in the regenerating process; the concentrated regenerated gas takes gasoline as an absorbent and is absorbed through a gas-liquid mixing pump; a material flow at the outlet of the pump returns to a gasoline container together; and the gasoline in the material flow is further absorbed. According to the invention, the currently common concentrated regenerated gas absorption tower is replaced by the gas-liquid mixing pump, so the oil gas recovery method has the advantages of simple equipment, low floor occupation, small investment, low operating cost and high oil gas recovery ratio.

Description

technical field [0001] The invention provides an oil gas recovery method, in particular a method for further recovery and treatment of concentrated regenerated gas obtained from an oil gas recovery device. Background technique [0002] In the process of crude oil extraction, transportation, storage, transfer, processing and crude oil processing products (gasoline, kerosene, diesel oil, etc.) , which generally contain air and other components) escape into the atmosphere, and in some chemical solvents such as benzene, toluene, xylene production workshops, paints and other organic solvents, there are also very volatile light hydrocarbon groups with similar properties point. [0003] On the one hand, the oil and gas dissipated into the air waste a lot of energy, causing huge economic losses, and on the other hand, reduce the quality of oil products. Moreover, since the explosion limit of oil and gas is 1% to 6%, the concentration of oil and gas around the escaped oil and gas f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/02B01D53/14
Inventor 刘忠生方向晨王海波郭兵兵
Owner CHINA PETROLEUM & CHEM CORP