Optimization and Research on the Operation Conditions of Acid Gas Remov-al Process in the Flue Gas Purification System of Garbage Incineration Power Plant
The flue gas deacidification system of semi-dry method+dry method+wet tower is used in a garbage incineration plant to carry out cascade treatment of acid gas produced by incin-eration.After analyzing the operation data of the system,it is found that the operation conditions of each deacidification process section are quite different from the design conditions.If the deacid-ification system is used under design conditions,it will cause the problems of high cost of deacidi-fication consumables and large output of fly ash and wastewater.Analysis and research have found that by adjusting the operating parameters of some equipment,the energy consumption and carbon emissions of the deacidification system can be reduced,achieving both emission standards and cost reduction,which will contribute to the ultimate achievement of the"dual carbon"target..Be-fore working condition adjustment,the concentration of SO2 and HCl in stack flue gas is within 5mg/Nm3.After several adjustment tests,the emission concentrations of SO2 and HCl in the tail flue gas can still be controlled within 10 mg/Nm3.It is far below the emission requirements of EU 2010,GB 2014 and Shanghai local standard.The cost of slaked lime and sodium hydroxide deacid-ification consumables per ton of waste treatment is reduced from the design value of 25.39 RMB to 13.7 RMB.Compared with the design value,the use cost of deacidification consumables is reduced by 53.92%,and the cost reduction and efficiency increase are obvious.
flue gas deacidificationdesign conditioncondition adjustmentdeacidification consumablescost reduction and efficiency improvement
NETL
NSTL
万方数据
