Oil gas recovery method and device using absorption method and membrane separating method integration technology

A technology of membrane separation method and absorption method, which is applied in the direction of separation method, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of failing to meet emission standards and high concentration of tail gas emission, and achieve reduction of tail gas concentration, improvement of absorption efficiency, The effect of preventing environmental pollution and fire hazards

Inactive Publication Date: 2008-05-28
江苏惠宇电仪设备有限公司
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Problems solved by technology

But its shortcomings are: the concentration of exhaust emissions is relatively high, and it cannot meet the new national emission standards

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  • Oil gas recovery method and device using absorption method and membrane separating method integration technology

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Embodiment Construction

[0017] As shown in Fig. 1, the device of the present invention is provided with gas collecting pipe (1), compressor (2), absorption tower (3), solvent pump (4), desorption horizontal tank (5), membrane separator (6) from left to right successively ), buffer tank (7), vacuum pump (8), gas-liquid separation tank (9), recovery tower (10), lean oil pump (11), oil storage tank (12), rich oil pump (13) and above the membrane separator drain port (14).

[0018] The connection situation of each part is as follows among Fig. 1: gas collector (1) is connected with compressor (2); Compressor is connected with the bottom of absorption tower (3), and the top of absorption tower (3) is connected with membrane separator (6) ), the upper part of the absorption tower is connected with the outlet of the solvent pump (4), and the bottom of the absorption tower is connected with the top inlet of the desorption horizontal tank (5); the inlet of the solvent pump (4) is connected with the desorption...

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Abstract

The invention relates to an oil gas recovery method and a device, which uses the integration technology of the absorption method and the membrane separation method; the method leads the mixed gas with various oil gas and air produced in the oil receiving and dispatching process of the oil product storage and transportation device to enter an absorption tower through a gas gathering tube and a compressor; dedicated lean absorbent is used in the absorption tower to absorb the oil gas discharged from the evaporation of the recovery of the light oil product, the off-gas that comprises a small amount of oil gas inside the tower is sent to a membrane separator, the oil gas and the air can be further separated, the air is sent to the free air, and the absorbent inside the tower that absorbs the oil gas is sent to a desorption tank to be desorbed and regenerates, thus ensuring the absorbent to be recycled. The oil gas with high concentration separated from the membrane separator and desorbed from the desorption lateral tank can be sent to the recovery tower and be absorbed by the liquid lean oil body inside the tower, and the fat oil after absorption is sent back to the oil storage tank or is used directly. The oil gas recovery rate of the invention is up to 99 percent, and distinct environmental benefit and economic benefit can be obtained.

Description

technical field [0001] The invention relates to the technical field of environmental protection and energy saving, and relates to a method and device for recovering various volatile organic compounds such as oil and gas, especially an oil and gas recovery method and device utilizing the integrated technology of absorption method and membrane separation method. Background technique [0002] In petroleum, petrochemical, paint (coating), transportation and other fields, various volatile organic compounds such as gasoline are very easy to volatilize in the process of production, storage, transportation, sales, use, etc., resulting in a large amount of evaporation and loss, and are directly discharged Into the atmosphere, it will not only cause quantity loss and quality decline, but also cause serious economic losses, and pollute the atmospheric environment, leaving a fire hazard. So people try every means to recover and utilize oil and gas. At present, the separation and recove...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/00B01D53/14B01D53/22B65D90/30
Inventor 张炳权邹松林林毅
Owner 江苏惠宇电仪设备有限公司
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