wwwcnkinet降低克劳斯尾气中二氧化硫含量的技术改造

284551989—[e-mail]014010。100mg/m3。X701．3B1006-7779201805-0028-03TechnicalTransformationtoＲeduceSulfurDioxideContentinClausTailGasLEIJinmengShenhuaBaotouCoalChemicalIndustryCo．Ltd．Baotou014010ChinaAbstractThehazardofsulfurdioxideisanalyzed．Thefluegasparametersofthesulfurrecoveryunitundernormalandabnormalworkingconditionsareintroduced．Themechanismandadvantagesofthealkalinewetdesulfurizationtechnologyareexpounded．TheuseofanalkalinewetdesulfurizationprocesscansignificantlyreduceinvestmentreduceoperatingcostsandensurethattheconcentrationofsulfurdioxideinClaustailgasislowerthan100mg/m3standardstate．KeywordssulfurrecoveryClaustailgassulfurdioxide400mg/m3100mg/m3。380mg/m3。1、MDEA－30%。2。。。、。320181029。1150℃、NH3N2H2O。H2S+1/2O2=S+H2OH2S+3/2O2=H2O+SO22H2S+SO2=3S+2H2O2NH3+3/2O2=3H2O+N2H2S+CO2=H2O+COS2H2S+CO2=2H2O+CS22NH3+SO2=N2+2H2O+H2S2NH3=N2+3H22H2S+SO2=3/xSx+2H2OCOS+H2O=H2S+CO2CS2+2H2O=2H2S+CO2、。260℃。。SO2+3H2=H2S+2H2OS8+8H2=8H2SCOS+H2O=H2S+CO2CS2+2H2O=2H2S+CO2H2SMDEA600℃。420mg/m3。13000m3/h＜100mg/m330%。1。1/kg·h－1Ar131．4732．44H2O1444．041959．62N211510．038034．82O2810．18640．77CO214454．8210889．38SO28．15233．22/℃330330/MPa0．0060．006ρSO2/mg·m－3474186281。pHpH1SO2+H2O=H2SO3SO3+H2O=H2SO4H2SO4+Na2SO3=Na2SO4+H2SO3H2SO3+Na2SO3=2NaHSO3NaOH+NaHSO3=Na2SO3+H2O2Na2SO3+1/2O2=Na2SO4①②③④、⑤30455。4、－180℃。58℃。。pHpHpH7。－5%。①。②－。③100mg/m3。160～200℃50～65℃190～210℃－、50～65℃190～210℃－、330℃160～200℃。5、、、、、、。。2018-08-02櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴櫴274．J．20184208-210．5．J．2011448-50．6．J．201621103-105．7．J．19983146-148．8．J．2012315-18．9．、J．20131625-26．10．MTOJ．201451093-1100．11．MTOJ．20135527-530．12．J．2012365-66．13．J．2006141-42．14．M．2．2015133．15SILVAJACMATAVGDIASMMetal．Effectofcokeintheequilibriumandkineticsofsorptionon5AmolecularsievezeolitesJ．Industrial＆EngineeringChemistryＲesearch20004665-668．16．J．20111215-20．17CHENICHENFL．Effectofalkaliandalkaline-earthmetalsontheresistivitytocokeformationandsinteringofnickel-aluminacatalytsJ．Industrial＆EngineeringChemistryＲesearch19904534-539．18．“”J．19933319-325．2018-07-16