Construction method of fugitive emission model of volatile organic compounds in petroleum refinery

Abstract

The invention provides an emission amount estimation model and estimation method for volatile organic compounds (VOCs) emitted in an unorganized manner by a petroleum refining apparatus. The emission amount of the VOCs is estimated by acquiring emission information of the unorganized VOCs in the petroleum refining apparatus. The unorganized emission model and estimation method involves four parts of an emission factor calculation module, a basic parameter module, a calculation function construction module and an emission model output module that are connected with a computer operation system, and an emission model display system. According to the unorganized emission model and estimation method, the deficiencies of an existing management-based emission amount estimation method for VOCs emitted in an unorganized manner by a petroleum refining apparatus are effectively made up for, the defects of the existing method are overcome, the emission amount of the VOCs emitted in the unorganized manner by the petroleum refining apparatus based on total and components can be estimated, a priority control species and a priority control apparatus or device components based on the mass concentration and chemical activity of the VOCs are obtained, and the emission features and emission amount of the VOCs can be predicted.

Description

technical field [0001] The invention belongs to the technical field of environmental protection detection, and relates to a technical tool that integrates refined estimation and prediction of volatile organic compounds from industrial sources, and can multi-functionally output the total amount of volatile organic compounds and specific component management, and specifically relates to a petroleum refinery Fugitive emission model and estimation method of volatile organic compounds (VOCs—Volatile organic compounds) from chemical plant. Background technique [0002] In recent years, there have been continuous severe haze weather in many places in my country, which has had a huge impact on people's production, life and physical and mental health. Frequent occurrence of haze is closely related to volatile organic compounds emitted by industrial sources. VOCs in the air are key precursors of ozone and secondary organic aerosols. VOCs can also cause direct or indirect harm to the ...

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Problems solved by technology

In the "Technical Guidelines for Estimation Methods of Volatile Organic Compounds (VOCs) Emissions from Construction Projects in the Petrochemical Industry (Trial)" released in 2015, the calculation of the refinery unit mainly draws on the method established by the United States in 1995, but this method will not be implemented until 2015. It has not been updated until October, and there are certain defects

[0007] 1) Lack of localized emission factors in line with my country's national conditions;

[0008] 2) Only the emissions of total volatile organic compounds (TVOC) can be obtained, and the emissions based on the components of VOCs cannot be obtained;

[0009] 3) The estimation results of VOCs emissions are only based on the mass concentration of VOCs, without taking into account the activity of VOCs (such as photochemical reactivity, ozone generation potential, and secondary organic aerosol generation potential);

[0010] 4) It is impossible to predict the emission volume and emission characteristics

[0011] To sum up, due to the limitations of the current calculation methods, it is difficult to obtain a process-based collective management and environmental protection method based on the VOCs composition that is in line with my country's national conditions. The emission situation in one body limits the research on the monitoring and emission reduction of fugitive emissions of VOCs from petroleum refining and chemical equipment

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