Alkaline ionic liquid for desulfurizer purification, preparation method and application thereof
By using a combination of trioctylmethylammonium hydroxide [A336]OH alkaline ionic liquid and sodium hydroxide regeneration, the problems of desulfurizer loss and system corrosion caused by the accumulation of thermally stable salts were solved, achieving efficient and low-cost desulfurizer purification and regeneration, and improving the stability and emergency response capabilities of the flue gas desulfurization system.
CN122212943APending Publication Date: 2026-06-16CHENGDU HUAXI CHEM TECH CO LTD +1
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHENGDU HUAXI CHEM TECH CO LTD
- Filing Date
- 2026-04-09
- Publication Date
- 2026-06-16
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Figure CN122212943A_ABST
Abstract
The present application relates to flue gas desulfurization and desulfurizer purification technical field, especially in kind of desulfurizer purification basic ionic liquid and its preparation method and application, it includes using trioctyl methyl ammonium chloride and sodium hydroxide by one step heat reaction or two step methanol medium method preparation obtains trioctyl methyl ammonium hydroxide.The present application can be through liquid-liquid extraction and ion exchange principle, in 40 to 80 DEG C, the salt of sulfuric acid radical and chloride ion etc. of desulfurizer lean liquid with thermal stability is transferred to organic phase, and the activity of desulfurizer is recovered through liquid-liquid layering, and the organic phase after carrying impurities is regenerated and recycled by high concentration lye.The present application solves the problem of large water consumption, much sewage, poor emergency treatment capacity of traditional resin purification process, significantly improves the operation stability of desulfurization system, and greatly reduces the desalination water consumption and sewage discharge.
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