Ultraviolet Absorption Determination Method for Sulfur Dioxide in Stationary Pollution Source Exhaust Gas

A technology of fixing pollution source and ultraviolet absorption method, which is applied in the field of ultraviolet absorption method flue gas monitoring equipment

Active Publication Date: 2017-03-15
山东省环境监测中心站
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no method for the determination of sulfur dioxide in waste gas from fixed pollution sources by ultraviolet absorption method.

Method used

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  • Ultraviolet Absorption Determination Method for Sulfur Dioxide in Stationary Pollution Source Exhaust Gas
  • Ultraviolet Absorption Determination Method for Sulfur Dioxide in Stationary Pollution Source Exhaust Gas
  • Ultraviolet Absorption Determination Method for Sulfur Dioxide in Stationary Pollution Source Exhaust Gas

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Experimental program
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Embodiment 1

[0041] 1 Reagents and materials

[0042]1.1 Sulfur dioxide calibration gas

[0043] Certified ambient standard gas, the uncertainty is not greater than 2% or the uncertainty that can be achieved at present, or the calibration gas used to calibrate the instrument is obtained by diluting the standard gas with nitrogen. The concentration of the calibration gas for checking indication errors and system deviations is not greater than 60% C.S. (calibration span).

[0044] 1.2 Nitrogen

[0045] The purity should be greater than 99.99%.

[0046] 1.3 Sampling tube

[0047] Tube materials such as hard glass, PTFE, stainless steel, titanium alloy, etc. can be used.

[0048] 1.4 Sample transfer line

[0049] Tube materials such as polytetrafluoroethylene can be used.

[0050] 1.5 particulate filter

[0051] It can be made of corundum, borax, quartz wool, alkali-free glass fiber and other materials that do not absorb sulfur dioxide.

[0052] 2 Instruments and equipment

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Abstract

The invention discloses an ultraviolet absorption measurement method for waste gas sulfur dioxide of a stationary pollution source. According to the method, an ultraviolet absorption method sulfur dioxide analyzer or multiple groups of gas analyzers with an ultraviolet absorption method sulfur dioxide analysis function is / are used as multiple monitors; sulfur dioxide is used for absorbing light with the characteristic wavelength of 240-330nm in a near ultraviolet light region, and the concentration of sulfur dioxide in waste gas is quantified according to the lambert-beer law; then the sulfur dioxide discharging rate is obtained by further calculation. An ultraviolet absorption method can adapt to wider measurement on SO2 discharged by the stationary source; by the method, the requirements on supervising monitoring on an on-site pollution source, comparison monitoring on a CEMS (continuous emission monitoring system) and checking of data effectiveness are met.

Description

technical field [0001] The invention relates to a method for measuring waste gas from a fixed pollution source and a matching flue gas monitoring device by an ultraviolet absorption method, belonging to the technical field of environmental monitoring. Background technique [0002] In nature, sulfur-containing substances and sulfur elements can produce sulfur dioxide (SO 2 ). Sulfur oxides that cause air pollution mainly come from non-ferrous metal smelting (such as copper, zinc, lead refining, etc.), sulfuric acid manufacturing, and combustion of fossil fuels (coal, oil, etc.). There are hundreds of thousands of industrial and civil boilers in China, mainly coal-fired. 70% of my country's energy comes from coal-fired, and the SO released by coal-fired 2 constitute the primary pollutants that pollute the air environment. SO 2 The key pollutants for the implementation of total amount control in my country are the national and provincial comprehensive emission standards for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/33
Inventor 潘光李恒庆宋毅倩谷树茂丁君由希华曹燕燕张广卷
Owner 山东省环境监测中心站
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