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Method for determining methane dissipation factor

A determination method and fugitive technology, which are applied in complex mathematical operations, CAD numerical modeling, design optimization/simulation, etc., can solve the problem that there is no systematic and comprehensive method for methane fugitive calculation, and avoid the existence of large The effect of deviation, comprehensive system and accurate results

Pending Publication Date: 2020-07-17
海油总节能减排监测中心有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no systematic and comprehensive method for the determination of methane emission sources in the industrial production process and the calculation of methane emission in each part.

Method used

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  • Method for determining methane dissipation factor
  • Method for determining methane dissipation factor
  • Method for determining methane dissipation factor

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0044] The determination method of a kind of methane dissipation factor of the present invention as shown in accompanying drawing, comprises the following steps:

[0045] The first step is to determine the location where methane escapes from according to the technological characteristics of the industrial production process;

[0046] According to the process characteristics of industrial production process (such as: petrochemical production process, oil and gas exploitation process, coal bed methane exploitation process), determine the escape position of methane, including: flange, pump, compressor, agitator, valve, pressure relief Equipment, connectors, open valves, and open pipelines;

[0047] The second step is to select parts that may have methane escape (including: flanges, pumps, compressors, agitators, valves, pressure relief equipment,...

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Abstract

The invention discloses a method for determining a methane dissipation factor. The method comprises the following steps: determining a methane dissipation generation position; selecting a part possibly having methane dissipation, and determining the methane dissipation speed and the methane dissipation amount of the part under different methane dissipation apertures; respectively calculating the methane dissipation concentration fields around the methane dissipation position under different methane dissipation amounts by adopting Fluent numerical simulation software; obtaining a Gaussian gas concentration diffusion equation for solving the methane dissipation amount by utilizing the methane dissipation concentration; detecting the methane dissipation concentration at the dissipation position of the flange; substituting the measured methane escape concentration into a Gaussian gas concentration diffusion equation, and calculating the escape amount of methane; summing the obtained methane dissipation data at all the methane dissipation positions according to set classifications of the methane dissipation components, and dividing the sum by the detection number of the type of components to finally obtain a methane dissipation factor of each type of components. By adopting the method, the problem that the dissipation amount is difficult to directly detect is solved.

Description

technical field [0001] The invention relates to the field of methane-containing gas escape, and is particularly suitable for the calculation method of the methane escape factor in the industrial production process. Background technique [0002] Methane is a greenhouse gas with a strong greenhouse effect. The greenhouse effect per unit mass of methane is more than twenty times that of carbon dioxide. At present, there is no systematic and comprehensive method for the determination of methane emission sources in the industrial production process and the calculation of methane emission in each part. Contents of the invention [0003] The purpose of the present invention is to overcome the disadvantages of the prior art and provide an accurate and simple method for determining the dissipation factor of methane. [0004] The technical solution adopted by the present invention to solve its technical problems is: [0005] A method for determining a methane dissipation factor, c...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F17/11G06F111/10
CPCG06F17/11
Inventor 张景奇张海滨卢迪安宝晶牛黎明朱晓霞
Owner 海油总节能减排监测中心有限公司