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脱硫脱硝技术展望
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韩 慧,白敏冬,白希尧7 ~1 b8 I0 R% c7 s. Y1 R
(大连海事大学环境工程研究所,辽宁大连 116026)# g P3 c, Y; F4 t6 ~4 _
9 @* l6 ~. H( L! f! I, l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
! W' p* u: g$ T K6 `8 y2 V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' P- z; y" D, `- H4 \ d9 J
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。
# |5 e& l* j; I& h9 f2 c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
8 _* V, q p1 M; e; p: {5 y中图分类号:X703·1 文献标识码:A 文章编号:1001-6929(2002)01-0055-03/ s/ h) H, F" Z Z' k {
Prospect of SO2and NOxRemoval Technology& p) R& F P4 }- o7 c' W: |3 D
HANHui, BAI Min-dong, BAI Xi-yao0 \" E& \5 _4 x4 I" n
(Environmental Engineering Research Institute,Dalian Maritime University,Dalian 116026,China)/ o, u8 B7 j# Y( H8 F' r
Abstract: Technique situation of removal of SO2and NOxis described,and conclusions as followswere drawn through analysis and comparison.
6 U& s* F, n0 }/ @The investment and running cost of SO2removal in wet method is high and its byproducts are useless;on the contrary,the cost of SO2removal
% t$ R+ V: m8 X; P. O& Mby use of electron beam is 20%~30% lowerthan that inwetmethod,but strict and giant radiation defensive facilities are neededwith expens-
) C5 v M- \7 M2 V" y' Q6 z7 rive accelerator and energy loss is great.Also it is suggested that SO2in flue gas can be oxidized and solid particles of (NH4)2SO4are generated: U! a$ M0 R; B) l4 H
by using strong barring dielectric discharge which is hopeful to resolve the pollution of SO2and NOxin China.
2 p& o) @; S* _- R5 d* o6 JKey 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
