A series of experiments such as calcium carbonate dissolution

oxidation of calcium sulfite and absorption of sulfur dioxide were conducted by using calcium carbonate as the desulfuriazation agent

agents like magnesium sulfate

sodium citrate

adipic acid

glutaric acid

succinic acid

manganese sulfate

potassium persulfate

sodium dodecylbenzenesulfonate and carboxymethylcellulose sodium as the additives.The results show that

the succinic acid can increase the calcium carbonate's conversion rate by 54%

the potassium persulfate can increase the calcium sulfite's oxidation rate by 21.9%

the adipic acid

succinic acid

glutaric acid

sodium citrate

magnesium and composite synergist all have significant synergism function on desulfurization.On this basis

five kinds of composite synergists were prepared.Considering the synergistic effects

cost and secondary environmental impact

No.3composite synergist

which can increase the desulfurization efficiency by 31.7%

was selected as the optimal composite synergist.