氯酸钠与石灰石的混合浆液同时脱除NO和SO_2的实验研究
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摘要
采用NaClO_3作为氧化吸收剂,与质量分数15%的石灰石浆液进行混合,并在鼓泡反应装置下进行了烟气同时脱硫脱硝的实验研究。根据实验结果分别考察了混合浆液中氯酸钠的浓度、反应浆液温度、浆液整体的pH值和NO通入浓度对同时脱硫脱硝效率的影响,并做出简要分析。研究结果表明,在一定范围内,SO_2均可以在实验中被完全去除,而增加氧化剂浓度和NO浓度均可提高NO的吸收率;当温度超过55℃则不利于NO的氧化吸收;过高的pH值对NO的脱除也有负面作用。实验结果验证了氯酸钠与石灰石混合浆液对于同时脱硫脱硝的可行性。
The experimental study of simultaneous desulfurization and denitrification was conducted under a bubbling reactor by using the mixture solution of NaClO_3 as an oxidizing absorbent and15 wt% limestone slurry. According to the experimental results, the effects of sodium chlorate concentration, reaction slurry temperature, pH value of the slurry and NO inlet concentration on the simultaneous desulfurization and denitrification efficiency of the mixed slurry were investigated and brief analyses were made. The results indicated that SO_2 could be completely removed in tested range. Increasing oxidant concentration and NO inlet concentration can increase NO absorption efficiency; It is not conducive to the oxidation absorption of NO when temperature exceeds 55℃; Excessive pH value also has a negative effect on the removal of NO. The experimental results verify the feasibility of simultaneous mixing of sodium chlorate and limestone slurry for desulfurization and denitrification.
The experimental study of simultaneous desulfurization and denitrification was conducted under a bubbling reactor by using the mixture solution of NaClO_3 as an oxidizing absorbent and15 wt% limestone slurry. According to the experimental results, the effects of sodium chlorate concentration, reaction slurry temperature, pH value of the slurry and NO inlet concentration on the simultaneous desulfurization and denitrification efficiency of the mixed slurry were investigated and brief analyses were made. The results indicated that SO_2 could be completely removed in tested range. Increasing oxidant concentration and NO inlet concentration can increase NO absorption efficiency; It is not conducive to the oxidation absorption of NO when temperature exceeds 55℃; Excessive pH value also has a negative effect on the removal of NO. The experimental results verify the feasibility of simultaneous mixing of sodium chlorate and limestone slurry for desulfurization and denitrification.
引文
[1]王旭伟,鄢晓忠,陈彦菲,谭旦辉.国内外电厂燃煤锅炉烟气同时脱硫脱硝技术的研究进展[J].电站系统工程,2007(04):5-7+39.
[2]Honghong Yi,Hua Deng,Xiaolong Tang,Qiongfen Yu,Xuan Zhou,Haiyan Liu.Adsorption equilibrium and kinetics for SO2,NO,CO2on zeolites FAU and LTA[J].Journal of Hazardous Materials,2011,203:111-117.
[3]董建勋,李辰飞,袁德,陈宏伟.燃煤电厂多种污染物控制技术现状及发展[J].热力发电,2007(04):14-17.
[4]李清方,张建,陆诗建,韩月梅.烟气联合脱硫脱硝技术综述[J].广东化工,2009,36(09):115-116+121.
[5]Yong Zeng,Jun Zhou,Zhiying Yan,Xueying Zhang,Weiguo Tu,Na Li,Min Tang,Yuexiang Yuan,Xiang Li,Qin Cao,Yanmeng Huang.The study of simultaneous desulfurization and denitrification process based on the key parameters[J].Process Biochemistry,2018,70:144-152.
[6]Zaishan Wei,Zhehang Lin,Hejingying Niu,Haiming He,Yongfeng Ji.Simultaneous desulfurization and denitrification by microwave reactor with ammonium bicarbonate and zeolite[J].Journal of Hazardous Materials,2009,162(2):837-841.
[7]于忠贵,刘连香.浅析高锰酸钾的氧化性[J].天津化工,1997(03):46.
[8]Yi Zhao,Peiyao Xu,Lidong Wang.Simultaneous Removal of SO2 and NO by Highly Reactive Absorbent Containing Calcium Hypochlorite[J].Environmental Progress,2008,27(4):460-468.
[9]邱鸿恩,吴丹,王睿.烟气同时脱硫脱硝技术进展[J].化学工业与工程技术,2004(06):1-5+59.
[10]B.R.Deshwal,H.K.Lee.Mass transfer in the absorption of SO2and NOx using aqueous euchlorine scrubbing solution[J].Journal of Environmental Sciences,2009,21(02):155-161.
[11]Jie Wang,Wenqi Zhong.Simultaneous desulfurization and denitrification of sintering flue gas via composite absorbent[J].Chinese Journal of Chemical Engineering,2016,24(08):1104-1111.
[12]赵毅,刘凤,赵音,郭天祥.亚氯酸钠溶液同时脱硫脱硝的热力学研究[J].化学学报,2008(15):1827-1832.
[13]张虎,佟会玲,陈昌和.燃煤烟气同时脱硫脱硝机理概述[J].环境科学与技术,2006(07):103-105+121.
[14]Ruitang Guo,Xiang Gao,Weiguo Pan,Jianxing Ren,Jiang Wu,Xiaobo Zhang.Absorption of NO into NaClO 3/NaOH solutions in a stirred tank reactor[J].Fuel,2010,89(11):3431-3435.
[15]乔慧萍,杨柳.湿法同时脱硫脱硝工艺中脱硝吸收剂的研究现状[J].电力环境保护,2009,25(01):1-3.
[16]周相武,汪晓军,刘姣,王炜.次氯酸钠溶液的氧化性研究[J].氯碱工业,2006(08):28-30.
[17]王静贻,高庆有,徐熙,赵玺灵,付林.亚氯酸钠溶液烟气脱硝与烟气余热回收的一体化试验[J].环境科学研究,2017,30(11):1754-1760.
[18]肖灵,程斌,莫建松,王海强,吴忠标.次氯酸钠湿法烟气脱硝及同时脱硫脱硝技术研究[J].环境科学学报,2011,31(06):1175-1180.
[19]王谦,张宏波,戴丽雅,孙同华,贾金平.响应面法优化亚氯酸钠湿法脱硝工艺的研究[J].现代化工,2017,37(01):151-154.
[20]王琼,胡将军,邹鹏.NaClO2湿法烟气脱硫脱硝技术的研究[J].江西电力,2004(06):14-16.
[21]高翔,吴祖良,杜振,骆仲泱,岑可法.烟气中多种污染物协同脱除的研究[J].环境污染与防治,2009,31(12):84-90.
[22]严金英.燃煤烟气NaClO2/NaClO复合吸收液同时脱硫脱硝试验研究[D].浙江工业大学,2011.
[23]方朝君,闫常峰,余美玲.同时脱硫脱硝技术的应用与发展现状[J].化工进展,2010,29(S1):361-365.
[24]潘理黎,许红檑,赵静,杨一理,张朋.氯酸盐复合吸收剂同时脱硫脱硝试验研究[J].浙江工业大学学报,2013,41(04):405-408.
[25]欧自伟,莫建松,周长海.液相氧化吸收脱硝中的氧化技术研究[J].广东化工,2012,39(06):52-54.
[26]李杰豪,金月祥,成一波,徐凯杰,潘理黎.NaClO2/H2O2复合吸收剂同时脱硫脱硝实验研究[J].环境污染与防治,2016,38(01):64-68+96.
[2]Honghong Yi,Hua Deng,Xiaolong Tang,Qiongfen Yu,Xuan Zhou,Haiyan Liu.Adsorption equilibrium and kinetics for SO2,NO,CO2on zeolites FAU and LTA[J].Journal of Hazardous Materials,2011,203:111-117.
[3]董建勋,李辰飞,袁德,陈宏伟.燃煤电厂多种污染物控制技术现状及发展[J].热力发电,2007(04):14-17.
[4]李清方,张建,陆诗建,韩月梅.烟气联合脱硫脱硝技术综述[J].广东化工,2009,36(09):115-116+121.
[5]Yong Zeng,Jun Zhou,Zhiying Yan,Xueying Zhang,Weiguo Tu,Na Li,Min Tang,Yuexiang Yuan,Xiang Li,Qin Cao,Yanmeng Huang.The study of simultaneous desulfurization and denitrification process based on the key parameters[J].Process Biochemistry,2018,70:144-152.
[6]Zaishan Wei,Zhehang Lin,Hejingying Niu,Haiming He,Yongfeng Ji.Simultaneous desulfurization and denitrification by microwave reactor with ammonium bicarbonate and zeolite[J].Journal of Hazardous Materials,2009,162(2):837-841.
[7]于忠贵,刘连香.浅析高锰酸钾的氧化性[J].天津化工,1997(03):46.
[8]Yi Zhao,Peiyao Xu,Lidong Wang.Simultaneous Removal of SO2 and NO by Highly Reactive Absorbent Containing Calcium Hypochlorite[J].Environmental Progress,2008,27(4):460-468.
[9]邱鸿恩,吴丹,王睿.烟气同时脱硫脱硝技术进展[J].化学工业与工程技术,2004(06):1-5+59.
[10]B.R.Deshwal,H.K.Lee.Mass transfer in the absorption of SO2and NOx using aqueous euchlorine scrubbing solution[J].Journal of Environmental Sciences,2009,21(02):155-161.
[11]Jie Wang,Wenqi Zhong.Simultaneous desulfurization and denitrification of sintering flue gas via composite absorbent[J].Chinese Journal of Chemical Engineering,2016,24(08):1104-1111.
[12]赵毅,刘凤,赵音,郭天祥.亚氯酸钠溶液同时脱硫脱硝的热力学研究[J].化学学报,2008(15):1827-1832.
[13]张虎,佟会玲,陈昌和.燃煤烟气同时脱硫脱硝机理概述[J].环境科学与技术,2006(07):103-105+121.
[14]Ruitang Guo,Xiang Gao,Weiguo Pan,Jianxing Ren,Jiang Wu,Xiaobo Zhang.Absorption of NO into NaClO 3/NaOH solutions in a stirred tank reactor[J].Fuel,2010,89(11):3431-3435.
[15]乔慧萍,杨柳.湿法同时脱硫脱硝工艺中脱硝吸收剂的研究现状[J].电力环境保护,2009,25(01):1-3.
[16]周相武,汪晓军,刘姣,王炜.次氯酸钠溶液的氧化性研究[J].氯碱工业,2006(08):28-30.
[17]王静贻,高庆有,徐熙,赵玺灵,付林.亚氯酸钠溶液烟气脱硝与烟气余热回收的一体化试验[J].环境科学研究,2017,30(11):1754-1760.
[18]肖灵,程斌,莫建松,王海强,吴忠标.次氯酸钠湿法烟气脱硝及同时脱硫脱硝技术研究[J].环境科学学报,2011,31(06):1175-1180.
[19]王谦,张宏波,戴丽雅,孙同华,贾金平.响应面法优化亚氯酸钠湿法脱硝工艺的研究[J].现代化工,2017,37(01):151-154.
[20]王琼,胡将军,邹鹏.NaClO2湿法烟气脱硫脱硝技术的研究[J].江西电力,2004(06):14-16.
[21]高翔,吴祖良,杜振,骆仲泱,岑可法.烟气中多种污染物协同脱除的研究[J].环境污染与防治,2009,31(12):84-90.
[22]严金英.燃煤烟气NaClO2/NaClO复合吸收液同时脱硫脱硝试验研究[D].浙江工业大学,2011.
[23]方朝君,闫常峰,余美玲.同时脱硫脱硝技术的应用与发展现状[J].化工进展,2010,29(S1):361-365.
[24]潘理黎,许红檑,赵静,杨一理,张朋.氯酸盐复合吸收剂同时脱硫脱硝试验研究[J].浙江工业大学学报,2013,41(04):405-408.
[25]欧自伟,莫建松,周长海.液相氧化吸收脱硝中的氧化技术研究[J].广东化工,2012,39(06):52-54.
[26]李杰豪,金月祥,成一波,徐凯杰,潘理黎.NaClO2/H2O2复合吸收剂同时脱硫脱硝实验研究[J].环境污染与防治,2016,38(01):64-68+96.
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