喷淋填料塔和鼓泡塔工艺对Fe~(2+)、Mn~(2+)湿法催化氧化烟气脱硫研究对比
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摘要
本文主要通过对比喷淋填料塔工艺和鼓泡塔工艺对Fe~(2+)、Mn~(2+)湿法催化氧化烟气脱硫能力的影响,探究两种工艺在低pH值条件下的脱硫效率,寻求更适合中小型燃煤锅炉使用的脱硫工艺。结果表明,两种中小型燃煤锅炉烟气脱硫工艺中,鼓泡塔工艺更具有可行性;Fe~(2+)、Mn~(2+)湿法催化氧化烟气脱硫法可简化脱硫工艺流程,是一种适用于中小型脱硫系统的高效脱硫方法;Fe~(2+)、Mn~(2+)湿法催化氧化烟气脱硫法能在低pH的环境里进行,在恰当条件下,不论是填料塔还是鼓泡塔,均能维持脱硫效率达到90%以上,具有良好的应用前景。
This paper mainly compares the desulphurization capacity of Fe~(2+)and Mn~(2+)wet catalyzed oxidation of flue gas with spray packed tower process and bubble tower process,and explores the desulfurization efficiency of the two processes under low pH conditions,seeking a desulfurization process more suitable for small and medium sized coal-fired boilers. The results show that the bubble column process is more feasible in the flue gas desulfurization process for small and medium-sized coal-fired boilers. The Fe~(2+)and Mn~(2+)wet-catalytic oxidation flue gas desulfurization method can simplify the desulfurization process with high desulfurization efficiency and is suitable for small and medium-sized desulfurization; it also can run in a low pH environment. Under proper conditions,both the packed tower and the bubble column can achieve the desulfurization efficiency of over 90%,showing a good application prospects.
This paper mainly compares the desulphurization capacity of Fe~(2+)and Mn~(2+)wet catalyzed oxidation of flue gas with spray packed tower process and bubble tower process,and explores the desulfurization efficiency of the two processes under low pH conditions,seeking a desulfurization process more suitable for small and medium sized coal-fired boilers. The results show that the bubble column process is more feasible in the flue gas desulfurization process for small and medium-sized coal-fired boilers. The Fe~(2+)and Mn~(2+)wet-catalytic oxidation flue gas desulfurization method can simplify the desulfurization process with high desulfurization efficiency and is suitable for small and medium-sized desulfurization; it also can run in a low pH environment. Under proper conditions,both the packed tower and the bubble column can achieve the desulfurization efficiency of over 90%,showing a good application prospects.
引文
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[2]林凯,武开华.湿法脱硫鼓泡塔工艺应用分析[J].环境科技,2009,22(4):41-43.
[3]郝吉明,马广大,王书肖.大气污染控制工程(第三版)[M].北京:高等教育出版社,2010:349.
[4]杨际.中小型燃煤炉脱硫技术研究[J].辽宁化工,2012,41(10):1107-1109.
[5]张玉,周集体.过渡金属离子液相催化氧化烟气脱硫[J].现代化工,2002,22(1):15-19.
[6]HJ/T 56-2000固定污染源排气中二氧化硫的测定-碘量法[S].