[1]张居兵,周莹,仲兆平,等.等离子体氧化NO耦合湿式氨法同时脱硫脱硝试验研究[J].东南大学学报(自然科学版),2014,44(6):1194-1199.[doi:10.3969/j.issn.1001-0505.2014.06.018]
　Zhang Jubing,Zhou Ying,Zhong Zhaoping,et al.Experimental study on simultaneous desulfurization and denitrification with ammonia in WFGD system combined with plasma oxidation of NO[J].Journal of Southeast University (Natural Science Edition),2014,44(6):1194-1199.[doi:10.3969/j.issn.1001-0505.2014.06.018]
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等离子体氧化NO耦合湿式氨法同时脱硫脱硝试验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
44
期数:
2014年第6期
页码:
1194-1199
栏目:
环境科学与工程
出版日期:
2014-11-20

文章信息/Info

Title:
Experimental study on simultaneous desulfurization and denitrification with ammonia in WFGD system combined with plasma oxidation of NO
作者:
张居兵1; 2; 周莹3; 仲兆平2; 姜小祥1; 朴桂林1
1南京师范大学江苏省能源系统过程转化与减排技术工程实验室, 南京 210042; 2东南大学能源热转换及其过程测控教育部重点实验室, 南京 210096; 3南京源恒环境研究所有限公司, 南京 210049
Author(s):
Zhang Jubing1; 2;  Zhou Ying3;  Zhong Zhaoping2;  Jiang Xiaoxiang1;  Piao Guilin1
1Engineering Laboratory for Energy System Process Conversion & Emission Control Technology of Jiangsu Province, Nanjing Normal University, Nanjing 210042, China
2Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China
3Nanjing Yuanheng Environmental Research Institute Co., Ltd, Nanjing 210049, China
关键词:
等离子体;  NO氧化;  湿式氨法脱硫;  同时脱硫脱硝
Keywords:
plasmas;  NO oxidation;  wet ammonia desulfurization;  simultaneous desulfurization and denitrification
分类号:
X773
DOI:
10.3969/j.issn.1001-0505.2014.06.018
摘要:
为提高燃煤烟气同时脱硫脱硝工艺中的脱硝效率,将等离子体氧化技术应用到湿式氨法脱硫工艺中,建立了等离子体氧化NO耦合湿式氨法的脱硫脱硝试验装置.考察了液气比、氨水浓度、烟气流量、烟气温度、NO初始浓度、SO2初始浓度等工艺参数对同时脱硫脱硝性能的影响.试验结果表明:提高液气比、增加氨水浓度、减少烟气流量、降低烟气温度、减小NO和SO2初始浓度都可以提高脱硝效率,而试验范围内工艺参数对脱硫效率的影响几乎可以忽略;当液气比为10 L/m3、氨水浓度为4 mol/L、烟气流量为10 m3/h、烟气温度为85 ℃、NO初始浓度为3.5×10-4、 SO2初始浓度为1.0×10-3时,该试验装置的脱硫效率和脱硝效率分别为99.6%和69.4%.
Abstract:
To increase the NOxx removal efficiency in simultaneous desulfurization and denitrification of flue gas, the plasma oxidation technology was applied to the wet flue gas desulfurization(WFGD)process. The testing apparatus for simultaneous desulfurization and denitrification with ammonia in WFGD system combined with plasma oxidation of NO was established. The effects of liquid-gas ratio, ammonia concentration, flue gas flow rate, flue gas temperature, NO initial concentration and SO2 initial concentration on the removal efficiency of SO2 and NOxx were investigated. The results show that higher liquid-gas ratio, higher ammonia concentration, lower gas flow rate, lower flue gas temperature, lower NO initial concentration and lower SO2 initial concentration contribute to higher NOxx removal efficiency, while the SO2 removal efficiency remains almost the same under corresponding experimental parameters. The removal efficiency of SO2 and NOxx reach 99.6% and 69.4%, respectively, under the following conditions: liquid-gas ratio of 10 L/m3; ammonia concentration of 4 mol/L; flue gas flow rate of 10 m3/h; flue gas temperature of 85 ℃; NO initial concentration of 3.5×10-4; SO2 initial concentration of 1.0×10-3.

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备注/Memo

备注/Memo:
收稿日期: 2014-07-23.
作者简介: 张居兵(1983—),男,博士,讲师,jubingzhang@njnu.edu.cn.
基金项目: 江苏省自然科学基金资助项目(BK20140926,BK2012851)、江苏省高校自然科学基金资助项目(12KJB480006).
引用本文: 张居兵,周莹,仲兆平,等.等离子体氧化NO耦合湿式氨法同时脱硫脱硝试验研究[J].东南大学学报:自然科学版,2014,44(6):1194-1199. [doi:10.3969/j.issn.1001-0505.2014.06.018]
更新日期/Last Update: 2014-11-20