System and method for producing white mud through alkali recovery and white mud flue gas wet desulphurization method
By optimizing the alkali recovery production process and system, the problems of large particle size, low whiteness, and high chloride ion content of white mud were solved, achieving a highly efficient wet flue gas desulfurization effect and reducing the risk and cost of system blockage.
CN120830261APending Publication Date: 2025-10-24GUODIAN ZHUMADIAN THERMAL POWER CO LTD +1
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Patent Information
- Application Number
- CN202410486424.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-10-24
AI Technical Summary
Technical Problem
Traditional alkali recovery processes produce white mud with large particle size, low whiteness, and high chloride ion content, leading to blockages in the desulfurization system and reduced desulfurization efficiency.
Method used
By constructing a system including green liquor clarifiers, digesters, causticizers, and filters, the white mud production process is optimized to obtain white mud with small particle size, high whiteness, and few impurities, which is then used for wet flue gas desulfurization.
Benefits of technology
It improves the purity and desulfurization effect of white mud, reduces the risk of blockage in the desulfurization system, enhances desulfurization efficiency, and reduces costs.
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Figure CN120830261A_ABST
Abstract
The invention relates to a system and a method for producing white mud by alkali recovery and a method for wet desulphurization of white mud flue gas, in the system, a white liquid dust remover, a first filter and a second filter are constructed, so that clear white liquid can be subjected to dust removal in the white liquid dust remover, and fine dust particles in the clear white liquid can be captured and removed; the white mud with the purity meeting the requirement of flue gas desulfurization can be obtained through dehydration and washing of the first filter and the second filter, impurities in the white mud slurry are reduced in the multiple filtering and washing processes, chloride ions soluble in water are also reduced, the produced white mud is small in particle size and high in whiteness, the components are optimized, and the white mud can be applied to wet flue gas desulfurization, so that the production cost is reduced. The desulfurization effect is relatively good.
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