新型高活性吸收剂脱硫脱硝实验及机理研究CAJ【期刊文献】

leba1995

新型高活性吸收剂脱硫脱硝实验及机理研究

赵　毅,　马双忱,　方　华,　汪黎东,　赵　莉
(华北电力大学环境科学与工程学院,保定071003)
/ |6 E* X' `$ ^( T* s/ m4 S
摘　要:以粉煤灰、石灰、添加剂为原料,采用干法工艺制备了具有氧化能力的高活性吸收剂。在
0 S! O) m, v, K1 l+ f$ Q5 G烟气管道进行了同时脱硫脱硝的实验,研究了影响脱除效率的若干因素。探讨了高活性吸收剂脱
硫脱硝的机理。试验结果表明,在Ca/(S+N)克分子比为1.2时,SO2和NOx的脱除效率分别为
3 Q' S0 h1 k1 L84%和61%。产生的废物为干粉状。最佳的烟气温度为60°C,烟气湿度为5%。与传统的干法
FGD相比,该工艺具有费用低、设备简单、废物易于处置等优点,可为工业化应用提供有益参考。图
8参10
关键词:环境工程学;同时脱硫脱硝;高活性吸收剂;氧化;实验研究;管道喷射
' }1 n, G& \5 Z3 C9 U+ F0 C7 ]中图分类号:X511　　　文献标识码:A
Experimental Studies on Desulfurization and Denitrification with a
New Type of Highly Reactive Absorbent and the Effective Mechanism
ZHAO　Yi,　MAShuang-chen,　FANG　Hua,　WANGLi-dong,　ZHAO　Li
8 h0 ~9 o: _& B6 O(School of Environmental Science and Engineering, North China University of Electric Power, Baoding 071003, China)
+ J/ j4 E& K7 O, @3 L  mAbstract: The employed highly reactive absorbent with oxidizing capability was prepared in an anhydrous process by
1 D7 }9 M. s. ?: s/ |2 h, Husing fly ash, lime and some additives as the raw materials. Simultaneous desulfurization and denitrification tests were
carried out in a flue duct, withthe objectof detectingthe factors that effectthe efficiencyof purification. The purification
mechanism of highly reactive absorbents is being discussed. Test results showthatwith a Ca/(S+N) molar ratio of 1.2,
; y" o; C7 L7 S8 m! ]5 Pthe purification efficiencies of SO2andNOx removal are 84% and 61% respectively. Thewaste left over appeared in the
0 Y8 E& Z9 t5 R- T/ i: ]. Pform of dry powder. The optimal gas temperature is 60°C, and the optimal humidity is 5%. Compared with traditional
7 K9 d) e+ {! a' {: rdry FGD methods, this technology has the advantage of lower expenses, simpler equipment and facile disposal ofwastes.
4 D- Q" y: T  x* B/ S) ~It may serve as a valuable reference for industrial application. Figs 8 and refs 10.
Key words: environmental engineering; simultaneous desulfurization and denitrification; highly active absorbent;
oxidation; experimental study; duct injection