System and method for recovering oil gas

An oil and gas recovery system, oil and gas technology, applied in separation methods, chemical instruments and methods, dispersed particle separation, etc., can solve problems such as increasing refrigerant flow or shutting down to cool down, and achieves extended operation period, superior performance, and simple process flow. Effect

Inactive Publication Date: 2012-07-18
CHINA HUANQIU CONTRACTING & ENG CO LTD
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Problems solved by technology

This device makes the oil and gas absorption rate of the absorption tower higher at normal temperature and pressure, saves equipment such as heat exchangers, and reduces equipment investment. However, when the temperature of the refrigerant is high, it is necessary to increase the flow rate of the refrigerant or stop the operation Cooling treatment

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  • System and method for recovering oil gas
  • System and method for recovering oil gas

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Embodiment Construction

[0029] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings, examples and test data.

[0030] like figure 1 Shown, the oil gas recovery system of the present invention, used absorption solvent is diesel oil, comprises diesel oil storage tank 5, absorption tower 1, the first activated carbon adsorption tower 2, the second activated carbon adsorption tower 3 and desorption tower 4; Diesel oil storage tank 5 bottoms A cooling coil is installed at the end, and cooling water is passed through the pipe to cool the diesel oil to below 35°C, such as 30-35°C. The oil and gas pipeline is connected to the air inlet of the buffer tank 6, and the gas outlet of the buffer tank 6 is connected to the air inlet of the absorption tower 1. , the gas outlet at the top of the absorption tower 1 communicates with the gas inlets and outlets at the bottom of the activated carbon adsorption t...

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Abstract

The invention relates to a recovering method and a recovering system for hydrocarbon and other volatile organic matters in refineries, chemical plants, large bulk plants, refuelling stations and the like. Oil gas is absorbed by two sections of stuffing in an absorption tower and then enters two activated carbon adsorption towers which run alternately; the oil gas reaches the standard after being absorbed by activated carbon, and then is discharged to the air; after the substance that is generated after desorption of the activated carbon is condensed and treated through oil-water separation, the obtained hydrocarbon liquid is conveyed to a storage tank, generated sewage is conveyed to a sewage treatment device to be treated, and a small amount of gas that is not condensed returns to the absorption tower; solvent that absorbs oil gas enters a desorption tower so as to desorb solvent and oil gas; and the hydrocarbon liquid is conveyed to the storage tank to be stored. The method and the system, which are provided by the invention, have the characteristics of smaller investment, longer operation period of equipment, high oil gas recovery rate and simple technological process.

Description

technical field [0001] The invention relates to a method and system for recovering oil and gas, in particular to a method and system for recovering hydrocarbons and other volatile organic compounds used in refineries, chemical plants, large oil depots and gas stations. Background technique [0002] Oil refining, chemical, pharmaceutical and other industries and refueling facilities all over the country are important sources of volatile organic pollutants (referred to as oil and gas). Therefore, the country has stricter requirements on oil and gas recovery and treatment. Whether it is a petrochemical project under construction or an existing plant, oil and gas recovery facilities have become a necessary part of the entire plant. In recent years, some companies have developed corresponding devices for different pollutant compositions, and their technological processes are different, and they have achieved basically satisfactory results within their respective scopes of adapta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/14B01D53/04B01D45/02
Inventor 李文堂杨庆兰刘玉陈荣华赵义孙长庚吴德娟毕可珍辛江宋磊马超凡
Owner CHINA HUANQIU CONTRACTING & ENG CO LTD
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