[1]钟秦,吕喆,陈迁乔.可再生半胱氨酸亚铁溶液同时脱除SO2和NO_X[J].南京理工大学学报(自然科学版),2000,(05):441-444.
 ZhongQin LuZhe ChenQianqiao.Simultaneous Removal of SO2 and NOX with Regenerable Ferrous Cysteine Solution[J].Journal of Nanjing University of Science and Technology,2000,(05):441-444.
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可再生半胱氨酸亚铁溶液同时脱除SO2和NO_X()
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2000年05期
页码:
441-444
栏目:
出版日期:
2000-10-30

文章信息/Info

Title:
Simultaneous Removal of SO2 and NOX with Regenerable Ferrous Cysteine Solution
作者:
钟秦吕喆陈迁乔
南京理工大学化工学院, 南京210094
Author(s):
ZhongQin LuZhe ChenQianqiao
School of Chemical Engineering,NUST,Nanjing 210094
关键词:
烟气脱硫 半胱氨酸 可再生 烟气脱硝 喷射鼓泡反应器
Keywords:
f lue gas desulfurizat ion cysteine regenerable f lue gas denit rif izat ion jet bubbling reactor
摘要:
可再生半胱氨酸亚铁溶液同时脱除SO2 和NOX 在喷射鼓泡反应器中进行实验研究。实验结果表明 ,在碱性条件下 ,半胱氨酸亚铁溶液吸收NO后生成亚硝酰络合物 ,随后半胱氨酸 (CySH)被氧化成胱氨酸 (CySSCy) ,而吸收的NO被还原成N2 。CySSCy能被烟气中的SO2 还原为CySH ,使半胱氨酸溶液脱硫脱硝反应得以循环进行。吸收液的 pH值、Fe(CyS) 2 的浓度对NOX 脱除率有影响 ,可用传质模型进行解释。在 5 5℃和pH =9的条件下 ,能同时达到 82 .3%的NOX 脱除率和 94.4%的SO2 脱除率。
Abstract:
Simultaneous removal of SO2 and NOX w ith regenerable ferrous cysteine solution w as investigated in a jet bubbling reactor. The experimental results show that in alkaline med-i um, ferrous cysteine solution absorbs NO to form nitrosyl ferrous chelates, and the cysteine ( CySH) is oxidized into cyst ine ( CySSCy) , and the absorped of NO is reduced to yield N2. CySSCy can be converted back to CySH by SO2 in f lue gas, thus making possible the recycling of the react ions of remov al of SO2 and NOX w ith cysteine solution. T he eff iciency of NOX removal is affected by pH value of the absorption solut ion and the concent rat ion of Fe( CyS) 2. T his process can be described w ith the model of mass t ransfer. Above 82. 3 % of NOX removal and above 94. 4 % of SO2 removal can be simultaneously obtained by cont rolling the temperature at 55 ℃ and pH= 7.

参考文献/References:

1 Chang S G, Littlejohn D, Lynn S. Effects of metal chelateson wet flue gas scrubbing chemistr y. Enviro n Sci Technol, 1983, 17: 649~ 655
2 Littlejohn D, Chang S G. Identification of species in a w et flue gas desulfurization and denitrification system by laser raman spectroscopy. Enviro n Sci Technol, 1984, 18: 305~ 312
3 Shi Y, Wang H, Chang S G. Kinetics of NO absorption in ir on ( I I) thiochelate solution. Environ Prog , 1997, 16: 301~ 306

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备注/Memo

备注/Memo:
江苏省青年科技基金
钟 秦 男 37 岁 教授
更新日期/Last Update: 2013-03-25