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页数:12页
时间:2019-10-11
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1、非热等离子体氧化与碱液吸收相结合的NO脱除实验研究「水兰1张应洲1谢春雪1余奇彳余刚X*(1.武汉纺织人学环境工程学院,武汉430073;2.武汉纺织大学化学与化工学院,武汉430073)摘要:在气体放电反应器出口气路串联碱性水溶液吸收装置,可以形成非热等离子体氧化一碱液吸收NO脱除系统。建立了等离了体氧化与Ca(OH)2水溶液吸收相结合的模拟烟气NO脱除实验系统,研究了氧和水蒸汽浓度对该NO脱除方法的影响规律。实验研究表明:加入水蒸汽对NO的等离子体氧化脱除冇促进作用,NO的整体脱除率比不加水时高,提升
2、程度烏达7%o;当有氧气加入时,Ca(OHb溶液对提岛NO的脱除效率有-定促进作川,NO脱除率比没加碱液吸收时提高10%-14%;当有氧气加入和进行Ca(OHb溶液吸收时,加水蒸汽比不加水蒸汽时的NO脱除效率高,水蒸汽对NO的脱除有明显的促进作用,加水蒸汽时,NO脱除效率能提高7%-17%o关键词:非热等离子体氧化,碱液吸收,一氧化氮(N0)ExperimentalstudyonNOremovalbyusingnon-thermalplasmaoxidation-alkaliabsorptionShuil
3、anDingYingzhouZhang1,ChunxueXie:QiYu1,GangYu1#*(1.SchoolofEnvironmentEngineering,WuhanTextileUniversity,Wuhan430073,China;2.SchoolofChemistryandChemicalEngineering,WuhanTextileUniversity,Wuhan430073,China)Abstract:Connectingsequentiallyanalkaliaqueoussol
4、utionabsorptiondevicetoagasdischargereactorwillformintoanon-thermalplasmaoxidation-alkaliabsorptionNOremovalsystem.AnexperimentalsystemofsimulatedfluegasNOremovalbyusingnon-thermalplasmaoxidationandCa(OH)2aqueoussolutionabsorptionwasestablishedandtheinflu
5、encesoftheconcentrationsof02andH2OvaporonthiskindofNOremovalmethodwerestudiedexperimentally・TheexperimentalresultsshowthattheoxidationofNOinnon-thermalplasmacanbepromotedbyH2OvaporandtheoverallNOremovalefficiencyunderthisconditionishigherthanthatofthesyst
6、emwithoutH2Ovaporadded・H?。vaporcanpromotetheoverallNOremovalefficiencyupto7%.WhenthereisO2inthesystem,Ca(OH)2aqueoussolutioncanplayacertainroleinimprovingtheNOremovalefficiencyandtheNOremovalefficiencycanbeincreasedby10%・14%underthisconditionthanthatofthe
7、systemwithoutalkaliabsorption.WhenO2isaddedintothesystemandaCa(OH)2aqueoussolutionabsorptiondeviceisconnectedsequentiallytothenon-thermalplasmareactor,theNOremovalefficiencyofthesystemwithH2OvaporaddedishigherthanthatofthesystemwithoutH2Ovaporadded・H?。vap
8、orcanobviouslyimprovetheNOremovalunderthisconditionandtheNOremovalefficiencycanbeincreasedby7%-17%・Keywords:non-thermalplasmaoxidation,alkaliabsorption,nitricoxide(NO)湖北省优秀屮青年科技创新团队计划资助(No.T201207)第一作者:谢春雪,研究生;*通讯作者
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