boiler flue gas can spray with an alkali solution

Waste heat recovery and denitrification of flue gases from ...

Nov 16 2016 · A waste heat recovery and denitrification system was developed for improving energy conservation and emissions control especially for control of PM2.5 particles and haze. The system uses enhanced heat and mass transfer techniques in a packed heat exchange tower with self-rotation and zero-pressure spraying low temperature NO oxidation by ozone and neutralization .

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(PDF) Comparison of flue Gas Desulfurization Technologies

method ammonia method sodium alkali method double alkali method and. ... and contact with flue gas through spray atomization in. ... from flue gas and can produce high.

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Double alkali process for flue gas desulfurization ...

@article{osti_6808080 title = {Double alkali process for flue gas desulfurization. optimizing for the regeneration of sodium sulfite--1. Lime as regenerant. 2. Limestone as regenerant} author = {Dauerman L and Rao K} abstractNote = {In the regeneration stage of the double FGD process which uses lime as a regenerant the flow-mixing of a slurry of lime with a sodium bisulfite ...

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Sodium-limestone double alkali flue gas desulfurization ...

In the absorption section flue gas 1 from the boiler is introduced at a rate of about 320000 acfm (151 m 3 /sec) and at a temperature of 280° F. (138° C.) in a countercurrent flow spray tower absorber 2 which has three stages. In the absorber 2 sulfur dioxide is absorbed into aqueous containing both sodium sulfite and sodium ...

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Power plant desulfurization

Flue gas into a wet absorption tower desulfurization equipment and top-down spray alkaline limestone slurry droplet countercurrent contact wherein the acidic oxide and other pollutants SO2 HCL HF etc. are absorbed the be sufficiently purified; slurry reactor to absorb SO2 after generation CaSO3 by in situ forced oxidation ...

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Incinerating liquid and gaseous residues - Dürr

May 25 2012 · This cools the flue gas and saturates it with steam. The saturated flue gas is then fed to a scrubbing column where an aqueous scrubbing solution is pumped around and absorbs the halogen compounds from the . A good overview of the equipment design of wet scrubbers be found in Lehner /2/.

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