Method of low-pressure gas system for storage tank VOCs safety collection and emission

A storage tank and gas technology is applied in the field of low-pressure gas system for safe collection and discharge of VOCs in storage tanks. simple effect

Active Publication Date: 2019-08-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems of VOCs treatment of single material storage tanks, high risk of fire in storage tanks and oil gas recovery + destruction method for VOCs treatment in the prior art, complex process, high investment, high energy consumption in operation, etc., to provide a Method for safe collection and discharge of low-pressure gas system for storage tank VOCs

Method used

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  • Method of low-pressure gas system for storage tank VOCs safety collection and emission

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Such as figure 1 A method for safely collecting and discharging low-pressure gas systems for storage tank VOCs, comprising the following steps:

[0050] Classified collection of VOCs in storage tank groups of various materials: the VOCs emitted by storage tank groups 1A / B of various materials are classified and collected through the oil and gas branch pipe 3 filled with each storage tank.

[0051] VOCs connection treatment of storage tanks of the same or similar materials: the VOCs discharged from multiple storage tanks 1A of the same or similar materials in multiple oil and gas branch pipes 3 collected by classification are collected into the same or similar oil and gas tank group oil and gas collection pipe 9A Connecting processing is carried out in the oil and gas branch pipe 3 collected by classification, and the VOCs discharged from the storage tank group 1B of the same or similar material in the multiple oil and gas branch pipes 3 collected by classification are c...

Embodiment 2

[0064] According to the method of embodiment 1, difference is: only do not have the fire arresting measure processing of air extraction equipment.

[0065] The method in Example 2 not only realizes the VOCs treatment of various material storage tanks, but also effectively reduces the emission of VOCs, and also reduces the risk of fire in the storage tanks and the environmentally friendly low-pressure gas system that safely collects and discharges, and realizes the recovery of hydrocarbon resources. use efficiently.

Embodiment 3

[0067] According to the method of embodiment 1, the difference is: only the one-way valve is not provided.

[0068] The method of Example 3 not only realizes the VOCs treatment of various material storage tanks, but also effectively reduces the emission of VOCs, and also reduces the risk of fire in the storage tanks and the environmentally friendly low-pressure gas system that safely collects and discharges, and realizes the recovery of hydrocarbon resources. use efficiently.

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Abstract

The invention relates to the technical field of normal-pressure and low-pressure storage tank VOCs collection and emission, and discloses a method of a low-pressure gas system for storage tank VOCs safety collection and emission. The method comprises the following steps: multiple materials of storage tank set VOCs are classified and collected; the same or similar materials of storage tank VOCs aretreated in a communicating mode; the nitrogen seal measure is for safety control of multiple materials of storage tank sets; and multiple materials of storage tank set VOCs safety collection and emission are treated by the low-pressure gas system. The invention designs the low-pressure gas system for safe and environment-friendly emission of storage tank VOCs, so that the fire risk of the storagetanks is reduced. Meanwhile, the multiple materials of storage tank VOCs treatment is realized.

Description

technical field [0001] The invention relates to the technical field of VOCs collection and discharge in normal pressure and low pressure storage tanks, in particular to a method for safe collection and discharge of VOCs in storage tanks for a low pressure gas system. Background technique [0002] Odor gas emissions caused by the breathing of storage tanks, the volatilization of residual oil, the shutdown of cleaning lines, and the volatilization of solvents carried in oil have become a major source of air pollution in petroleum, petrochemical, and chemical companies. They are volatile organic compounds (VOCs ) is one of the main sources. As the country pays more and more attention to environmental protection, relevant regulations and standards are becoming increasingly strict. In order to meet the requirements of national laws and regulations, various refining and chemical companies have begun to implement large-scale VOCs collection and treatment projects in oil storage sys...

Claims

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Application Information

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IPC IPC(8): F23G7/06A62C4/02F17C7/00F17C13/04F17C13/12F17D1/02F17D3/01F17D5/00
CPCA62C4/02F17C7/00F17C13/04F17C13/12F17C2205/0323F17C2223/0123F17C2225/0123F17D1/02F17D3/01F17D5/005F23G7/06
Inventor 王鹏党文义于安峰韩中枢刘迪张杰东王家见
Owner CHINA PETROLEUM & CHEM CORP
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