Ammonia desulfurization and denitration type flue gas purification system
A flue gas purification system and ammonia desulfurization technology, applied in separation methods, air quality improvement, chemical instruments and methods, etc., can solve the problems of low system investment, resource and energy consumption, low value of by-products, high consumption value, etc., and achieve resource Effect of low energy consumption, high product value, and high NOx recovery rate
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[0046] Example 1
[0047] Such as figure 1 As shown, the present application is an ammonia desulfurization and denitration flue gas purification system, which uses ammonia as an absorbent to absorb SO in the flue gas in an absorption tower 2 And NOx, and then oxygen oxidation, ammonium sulfite is oxidized to ammonium sulfate; and the difficult-to-oxidize NOx in the liquid phase is resolved and reacts with oxygen in the gas phase, and the reaction product is still absorbed by ammonia and returned to the absorption tower. A system for preparing a mixed product of ammonium sulfate and ammonium nitrate; including a flue gas input system, a flue gas absorption system, and a purified flue gas output system connected to each other, and also includes a slurry spray system, an ammonia spray system connected to the flue gas absorption system Absorbent spray system, flushing water system, NOx recovery system and product recovery system;
[0048] The flue gas input system is composed of an in...
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