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脱硫脱硝技术展望
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韩 慧,白敏冬,白希尧
3 u/ F+ @6 {6 V0 {6 X5 u, g(大连海事大学环境工程研究所,辽宁大连 116026)
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: x) C+ @- O c9 D4 L) V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
' y8 F+ B ~$ O, [4 s8 r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3 L, [/ r$ S1 ^. i1 }( f; Q
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。4 B. W* S# r( e" _
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
3 ]7 y! r% O9 Q( H中图分类号:X703·1 文献标识码:A 文章编号:1001-6929(2002)01-0055-03
5 t% r# W. |2 \: n2 Z( l$ W6 @* dProspect of SO2and NOxRemoval Technology/ y8 L' [! {7 b1 ^
HANHui, BAI Min-dong, BAI Xi-yao M: A* i1 S& M$ V$ a
(Environmental Engineering Research Institute,Dalian Maritime University,Dalian 116026,China)! `: E. o7 N k- |/ X
Abstract: Technique situation of removal of SO2and NOxis described,and conclusions as followswere drawn through analysis and comparison.$ G+ _! [8 G, p7 _3 C$ n
The investment and running cost of SO2removal in wet method is high and its byproducts are useless;on the contrary,the cost of SO2removal0 `) |( l, T+ ^
by use of electron beam is 20%~30% lowerthan that inwetmethod,but strict and giant radiation defensive facilities are neededwith expens-
% m# d. `! `" W5 K; R2 D; u0 D& Mive accelerator and energy loss is great.Also it is suggested that SO2in flue gas can be oxidized and solid particles of (NH4)2SO4are generated
1 H" W' w' |. L& |; m! o" I8 yby using strong barring dielectric discharge which is hopeful to resolve the pollution of SO2and NOxin China.
b; s3 c8 O m: y+ }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
