碳酸氢铵作还原剂的选择性非催化还原脱硝工艺的试验研究*

南京大学学报(自然科学版) ›› 2010, Vol. 46 ›› Issue (5): 588–595.

碳酸氢铵作还原剂的选择性非催化还原脱硝工艺的试验研究*

朱复东 1 , 仲兆平 2 ** , 梁秀进 2

出版日期:2015-04-02 发布日期:2015-04-02
作者简介: ( 1. 江苏东大热能机械制造有限公司, 盐城, 224007; 2. 东南大学能源与环境学院, 南京, 210096)
基金资助:
国家高技术研究发展计划( 2008AA05Z303)

Experimental study of selective non?catalytic reduction process with ammonium bicarbonate as reducing agent

Zhu Fu Dong 1 , Zhong Zhao Ping 2 , Liang Xiu Jin 2

Online:2015-04-02 Published:2015-04-02
About author: ( 1. Jiangsu Dongda Thermal Energy Machine Manufacturing Limited Company, Yancheng, 224007, China;
2. School of Energy and Environment, Southeast University, Nanjing, 210096, China)

摘要/Abstract

摘要： 在自制的试验台上对碳酸氢铵作还原剂的选择性非催化还原工艺及不同添加剂对其脱硝行为改善进行了研究, 并分析了其机理. 试验发现氨氮比为 1-25时, 以 NO x 去除率高于 50%为标准, 工艺
的温度窗口为 860~ 980 -c , 最优温度为 935 -c , 得到 NO x 去除率为 74.63%. 在最优温度条件下, 随着氨氮比的增大, NO x 去除率增大, 当氨氮比大于 1. 0 后, NO x 去除率增大的幅度较小. 以 CH 4 作添加剂
时, 温度窗口明显向低温方向移动, 最优温度变为 880 -c , NO x 去除率略有降低. 在以 Na 2 CO 3 和 NaOH 为添加剂时, 工艺的温度窗口基本不变, 随着添加剂添加量的增大, NO x 的去除率增大. 以 CH 3 COONa
为添加剂时, 除 NO x 去除率增大外, 工艺的温度窗口略向低温方向移动

Abstract: Experimental study of selective non-catalytic reduction process with ammonium bicarbonate as reducing agent under various additives has been carried out and the reaction mechanism has been analyzed. Taking NO x
removal efficiency higher than 50%, with a mole ratio- of [ NH 4 HCO 3 ]/ [ NO x ] = 1 -25 as standard and under a temperature window of 860 to 980- , the NO x removal efficiency is up to 74. 63% under an optimum temperature of
935-c . U nder this optimum temperature, the NO x removal efficiencies increase with , but not significantly when -> 1 . 0. With CH 4 as the additive, the optimum temperature shifts to 880 -c and the NO x efficiency becomes lower.
With NaOH and Na 2 CO 3 as the additives, the temperature window does not change obviously and NO x removal efficiencies increase with the addition of the additives. With CH 3 COONa as the additive, the temperature window
shifts to lower a little and the NO x removal efficiencies increase also with the addition of the additives.

朱复东 1 , 仲兆平 2 ** , 梁秀进 2 . 碳酸氢铵作还原剂的选择性非催化还原脱硝工艺的试验研究*

[J]. 南京大学学报(自然科学版), 2010, 46(5): 588–595.

Zhu Fu Dong 1 , Zhong Zhao Ping 2 , Liang Xiu Jin 2 . Experimental study of selective non?catalytic reduction process with ammonium bicarbonate as reducing agent

[J]. Journal of Nanjing University(Natural Sciences), 2010, 46(5): 588–595.

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