Method for testing calcium and magnesium content in limestone-gypsum wet desulphurization absorbent

A wet desulfurization and limestone technology, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions, can solve the problems of complicated operations, many operation steps, and failure to truly reflect the activity of absorbents. Composition and other issues, to achieve the effect of simple test method and saving manpower
CN103454271AInactive Publication Date: 2013-12-18STATE GRID CORP OF CHINA +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID CORP OF CHINA
Publication Date
2013-12-18
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention provides a method for testing calcium and magnesium content in a limestone-gypsum wet desulphurization absorbent. The method comprises the following steps: (1) taking a sample and drying; (2) slowly adding an acid; (3) heating and boiling; (4) cooling and obtaining a constant volume; (5) determining calcium and magnesium; and (6) processing data, wherein the step (5) comprises a step (5.1) of determining the calcium content and a step (5.2) of determining the total content of the calcium and the magnesium. According to the method, a hydrochloric acid solution is used for dissolving limestone to realize the aim of accurately representing active components of the absorbent of an FGD (Flue Gas Desulfurization) system. The method has the advantages that (1) a testing method for representing active components of the absorbent of the FGD system is simple, rapid and accurate; manpower, material resources and financial resources are saved; operation is facilitated; (2) the method is used for testing the calcium and magnesium content in the limestone-gypsum wet desulphurization absorbent of a thermal power plant so as to really reflect the condition of the active components of the absorbent needed by the FGD system of the thermal power plant.
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Description

technical field

[0001] The invention belongs to the technical field of environmental engineering, and in particular relates to a method for testing calcium and magnesium content in a limestone-gypsum wet desulfurization absorbent. Gas Desulphurization" abbreviation, its Chinese translation is "flue gas desulfurization".) The quality inspection of the absorbent in the system. Background technique

[0002] In recent years, FGD, which uses limestone as absorbent, has been widely used in coal-fired thermal power plants in my country because of its mature technology and high desulfurization efficiency. Typically, limestone contains dolomite that does not participate in the chemical reactions of the FGD system. The content of calcium and magnesium in limestone is one of the important indicators of FGD. At present, the content of calcium and magnesium in the limestone of the FGD system of the thermal power plant is basically measured with reference to the standard "GB / T3286.1-199...

Claims

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