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脱硫脱硝技术展望
! Y9 \$ `( s0 D* |! e# X( W$ ^) z7 F4 D5 k0 J; P( J
韩 慧,白敏冬,白希尧
" |' C6 m* a7 l2 ~+ w1 b(大连海事大学环境工程研究所,辽宁大连 116026)
5 i) ]6 y; m" |3 T( m* p: W [: F! x a% t% v* k9 E: z* q6 H- ^
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$ J' E0 P. Y" t3 i
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
U+ y2 O' l& B9 L4 w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。
2 C5 K! M* o* ?; Q" d2 o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
! e3 `$ f/ ]4 s中图分类号:X703·1 文献标识码:A 文章编号:1001-6929(2002)01-0055-03: }, |7 }0 f2 n% P' o* x
Prospect of SO2and NOxRemoval Technology6 B' P) G: J/ U$ m1 Q, V
HANHui, BAI Min-dong, BAI Xi-yao
o7 e3 o/ j2 \) h" G/ S+ o2 A(Environmental Engineering Research Institute,Dalian Maritime University,Dalian 116026,China)5 U, U8 v1 o% P# S9 c" s2 H3 B
Abstract: Technique situation of removal of SO2and NOxis described,and conclusions as followswere drawn through analysis and comparison. O& F1 M a) q1 n
The investment and running cost of SO2removal in wet method is high and its byproducts are useless;on the contrary,the cost of SO2removal) i: @, K& F; H/ ~
by use of electron beam is 20%~30% lowerthan that inwetmethod,but strict and giant radiation defensive facilities are neededwith expens-' U& k# Z Y+ ~
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! w1 u! O D. m3 x" w& o
by using strong barring dielectric discharge which is hopeful to resolve the pollution of SO2and NOxin China.( B; G" z4 d9 {
Key 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
