亚硝酸钠消除甲醛破坏硝酸诱导期研究
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摘要
为解决高中放废液蒸发浓缩甲醛脱硝反应中存在诱导期导致废液"暴沸"的问题,研究采用加入亚硝酸钠溶液来消除脱硝反应的诱导期,主要研究甲醛脱硝过程中的初始反应温度、甲醛加入量、亚硝酸钠加入量对诱导期长短的影响,并进一步分析其定量控制规律。结果表明,加入亚硝酸钠对于缩短或消除甲醛脱硝反应的诱导期效果明显,并且在较高的初始温度下反应能够有效减少甲醛和亚硝酸钠的加入量,同时分析得到的诱导期定量控制规律,也可为工程应用提供参考。
In order to solve the problem of long induction time in denitration with HCHO reaction,a certain amount of Na NO_2 is always added to eliminate the induction period.In this paper,the influence of initial reaction temperature,the amount of HCHO and NaNO_2 on the induction period was investigated,and the quantitative regulation was analyzed.The results indicated that adding NaNO_2 was very useful to shorten or eliminate the induction period,and high initial reaction temperature effectively reduced the amount of HCHO and Na NO_2.Furthermore,obtained quantitative regulation can provide reference for the engineering application.
In order to solve the problem of long induction time in denitration with HCHO reaction,a certain amount of Na NO_2 is always added to eliminate the induction period.In this paper,the influence of initial reaction temperature,the amount of HCHO and NaNO_2 on the induction period was investigated,and the quantitative regulation was analyzed.The results indicated that adding NaNO_2 was very useful to shorten or eliminate the induction period,and high initial reaction temperature effectively reduced the amount of HCHO and Na NO_2.Furthermore,obtained quantitative regulation can provide reference for the engineering application.
引文
[1]任凤仪,周镇兴.国外核燃料后处理[M].北京:原子能出版社,2006.
[2]姜圣阶,任凤仪.核燃料后处理工学[M].北京:原子能出版社,1995.
[3]胡彦涛,纪雷鸣.乏燃料后处理工艺中叠氮酸的产生及危害分析研究[J].当代化工, 2018, 47(4):746-748.
[4]侯学锋.乏燃料后处理高放废液蒸发系统设计重点问题考虑与见解[C].中国核学会核化工分会放射性三废处理、处置专业委员会学术交流会论文集,2011.
[5]杨辉,李传博,晏太红,等.蒸发脱硝工艺中温度对反应诱导期的影响研究[J].中国原子能科学研究院年报, 2013(1):180-180.
[2]姜圣阶,任凤仪.核燃料后处理工学[M].北京:原子能出版社,1995.
[3]胡彦涛,纪雷鸣.乏燃料后处理工艺中叠氮酸的产生及危害分析研究[J].当代化工, 2018, 47(4):746-748.
[4]侯学锋.乏燃料后处理高放废液蒸发系统设计重点问题考虑与见解[C].中国核学会核化工分会放射性三废处理、处置专业委员会学术交流会论文集,2011.
[5]杨辉,李传博,晏太红,等.蒸发脱硝工艺中温度对反应诱导期的影响研究[J].中国原子能科学研究院年报, 2013(1):180-180.