Sulphates content testing method in flue gas desulfurization system

Abstract

The invention provides a test method of the sulphate content in a flue gas desulfurization system, relating to the technical field of a test method of the sulphate content in a desulphurization system. The test method is characterized in that two samples to be tested are taken simultaneously, wherein one sample is used for determining the sulphite content, and the other sample is used for determining the total content of the sulphite and sulphate; and the sulphate content is calculated by the difference between the total content of the sulphite and sulphate and the sulphite content. The test method has the positive effects that the method is accurate, thus greatly improving the accuracy and the reliability of analysis results of the sulphate in the desulphurization system, and providing reliable analysis results for the operation of the desulphurization system. As the sulphite content in the desulphurization system is an indispensable project to be tested in the conventional analysis, thus not increasing the workload when determining the sulphate content. As the test can be completed only by using an analytical instrument in a conventional laboratory, and a determining project and a determining instrument do not need to be increased, the test method is a very practical analysis method.

Description

technical field

[0001] The invention relates to the technical field of a determination method for sulfate content in a flue gas desulfurization system. Background technique

[0002] In flue gas desulfurization projects, the sulfate content not only affects the quality of desulfurization products, but also affects the operation of the entire desulfurization system. In the wet flue gas desulfurization system, if the sulfite content is too high, it will easily cause the slurry in the absorption tower to be sticky and difficult to dehydrate, making the slurry easy to adhere to and scale on the system and equipment, resulting in increased equipment resistance and even system failure. clogged. Therefore, it is necessary to grasp the sulfate content in the absorption tower slurry and desulfurization products in time, so as to adjust the operating parameters of the system oxidation fan, improve the sulfite oxidation rate, and accurately measure the sulfate content in the absorption...