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脱硫脱硝技术展望! r- m7 ?# I. K
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韩 慧,白敏冬,白希尧
- U( S0 v a: m2 i% u1 l(大连海事大学环境工程研究所,辽宁大连 116026)4 U3 v% c: l4 k; P$ ^3 {
) k# e1 H, c( R# R) ?; f/ z摘要:论述了脱硫脱硝技术现状,通过分析比较得出:湿法脱硫投资和运行成本高,产生的副产品无法进行再利用;电子束烟气脱硫脱硝技术" ?+ l' h8 l4 s& t8 ~: t
投资和运行比湿法脱硫低20%~30%,但需要严格庞大的放射线防护设施,电子加速器昂贵,电子能量损失大。笔者提出强电离放电可以将烟
. m; C* T/ \/ o& g/ j/ q- s气中的SO2氧化,然后生成固体微粒(NH4)2SO4,提高反应速率,简化流程,有望真正解决我国的SO2和NOx污染问题。 ?8 J w8 o4 s1 z
关键词:脱硫脱硝;高气压非平衡等离子体;介质阻挡强电离放电
7 R4 Q6 M6 |7 V! ?0 ]中图分类号:X703·1 文献标识码:A 文章编号:1001-6929(2002)01-0055-03; C7 f) H" N" v" E2 f; P, f T9 m
Prospect of SO2and NOxRemoval Technology- }2 L8 n6 I, p/ h+ K
HANHui, BAI Min-dong, BAI Xi-yao
1 n& v( [% h& V! k(Environmental Engineering Research Institute,Dalian Maritime University,Dalian 116026,China)1 k+ E% y. S& ]; c8 J+ ~# {
Abstract: Technique situation of removal of SO2and NOxis described,and conclusions as followswere drawn through analysis and comparison.
1 h, a$ Q) J9 p$ E+ R% nThe investment and running cost of SO2removal in wet method is high and its byproducts are useless;on the contrary,the cost of SO2removal4 R% R0 u; k; @1 W: m/ ?1 e
by use of electron beam is 20%~30% lowerthan that inwetmethod,but strict and giant radiation defensive facilities are neededwith expens-8 a* v K8 o8 c9 r; K) B
ive accelerator and energy loss is great.Also it is suggested that SO2in flue gas can be oxidized and solid particles of (NH4)2SO4are generated
) h9 h2 x* G6 o: E2 [) dby using strong barring dielectric discharge which is hopeful to resolve the pollution of SO2and NOxin China.
: I2 D/ _) H* q8 KKey words: removal of SO2and NOx; high-pressure non-equilibrium plasma; strong barring dielectric discharge |
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发表于 2009-8-28 10:31:55
