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Method for treating volatile matter in cleaning process of open type oil storage tank

A treatment method and technology for volatile substances, which are applied in separation methods, chemical instruments and methods, and dispersed particle separation, etc., can solve the problems of large investment in oil storage tank cleaning, inability to achieve no odor diffusion, etc., and improve operating conditions and costs. Low, odor control effect

Inactive Publication Date: 2015-12-30
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Using the above method to clean the oil storage tank requires a lot of investment, and it is impossible to achieve no odor diffusion during the cleaning process

Method used

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  • Method for treating volatile matter in cleaning process of open type oil storage tank

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Take the solvent oil stored in the floating roof tank as an example. When cleaning the floating roof tank, first turn on the fan to pump the oil and gas in the oil storage tank from the manhole and enter the bottom of the adsorption tank along the first pipeline; the oil and gas entering the adsorption tank pass through the adsorption tank. The activated carbon layer in the tank, after being adsorbed by activated carbon, enters the fan from the top of the adsorption tank along the second pipeline, and the oil and gas from the fan are discharged up to the standard (GB20950-2007 Emission Standard of Air Pollutants for Oil Storage). The wind speed at the other manhole of the oil storage tank is 0.1m / s, and the air speed of the adsorption tank is 20h -1 .

Embodiment 2

[0029] Taking the storage of kerosene in the vault tank as an example, when cleaning the vault tank, first turn on the fan, pump the oil and gas in the oil storage tank from the manhole and enter the bottom of the adsorption tank along the first pipeline; the oil and gas entering the adsorption tank pass through the adsorption tank The molecular sieve layer inside, after being adsorbed by the molecular sieve, enters the fan from the top of the adsorption tank along the second pipeline, and the oil and gas from the fan are discharged up to the standard (GB20950-2007 Emission Standard of Air Pollutants for Oil Storage). The wind speed at the other manhole of the oil storage tank is 3m / s, and the air speed of the adsorption tank is 500h -1 .

Embodiment 3

[0031] Taking the storage of diesel oil in the vault tank as an example, when cleaning the vault tank, first turn on the fan to pump the oil and gas in the oil storage tank from the manhole and enter the bottom of the adsorption tank along the first pipeline; the oil and gas entering the adsorption tank pass through the adsorption tank The molecular sieve layer inside, after being adsorbed by the molecular sieve, enters the fan from the top of the adsorption tank along the second pipeline, and the oil and gas from the fan are discharged up to the standard (GB20950-2007 Emission Standard of Air Pollutants for Oil Storage). The wind speed at the other manhole of the oil storage tank is 5m / s, and the air speed of the adsorption tank is 1000h -1 .

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Abstract

The invention relates to a method for treating volatile matter in the cleaning process of an open type oil storage tank. An adopted treatment device comprises an adsorption tank and a draught fan, an air inlet in the bottom of the adsorption tank is communicated with one man hole or a ventilation hole of the oil storage tank through a first pipeline, an air outlet in the top of the adsorption tank is communicated with a second pipeline, and the draught fan is connected to the first pipeline or the second pipeline in series. The draught fan is started, and oil gas in the oil storage tank is pumped out from the manhole or the ventilation hole and enters the bottom of the adsorption tank along the first pipeline. The oil gas entering the adsorption tank is discharged from the top of the adsorption tank and enters the second pipeline after being adsorbed by adsorption matter in the adsorption tank, and emission of the oil gas discharged from the second pipeline meets standards. The method is simple in technology and low in cost. In the cleaning process, the draught fan pumps out the oil gas in the oil storage tank, micro negative pressure exists in the oil storage tank, it is guaranteed that gas in the tank does not overflow, volatile matter of the oil storage tank is adsorbed and emitted, odors are effectively treated, environment pollution is reduced, and the work condition is improved.

Description

technical field [0001] The present invention relates to the field of petrochemical industry, in particular to open oil storage tanks (such as floating roof tanks, vault tanks, etc.) Treatment method of volatile gas. Background technique [0002] Many petrochemical products are highly volatile and accompanied by odor. According to different needs, various oil and chemical product storage tanks need to be cleaned regularly or irregularly. The cleaning of oil and chemical oil storage tanks generally adopts methods such as steam steamer, fire-fighting water flushing, and manual cleaning. And the odor of the job site, polluting the environment. Some of the storage and transportation varieties of oil storage tanks produce relatively large odors, such as: raw kerosene, solvent oil, and some small varieties of oil. During the cleaning process of conventional oil storage tanks, certain environmental pollution is caused, and at the same time, the occupational health of on-site opera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/02
Inventor 周立群蔡吉乡崔元贵余丽蓉
Owner CHINA PETROCHEMICAL CORP
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