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脱硫脱硝技术展望0 ]8 x/ C F. D- U. J
( p/ m Q. a0 A5 W& e韩 慧,白敏冬,白希尧
* w) T; O9 M5 d% x( D(大连海事大学环境工程研究所,辽宁大连 116026)
( G" S% R( V8 a( k& [. G. d
' ~0 V9 Y! G" r) c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( a a" G5 e/ \2 D
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
/ n8 U! u2 T! V! x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。
3 C% j5 z( J; v( ^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1 ?! r7 o! x+ T2 F
中图分类号:X703·1 文献标识码:A 文章编号:1001-6929(2002)01-0055-03; Y: b( F2 L' K# n
Prospect of SO2and NOxRemoval Technology
' j2 u$ N( s( A2 p6 G3 n8 B3 O) IHANHui, BAI Min-dong, BAI Xi-yao1 j6 ^5 H9 s+ w4 E) @( V( `
(Environmental Engineering Research Institute,Dalian Maritime University,Dalian 116026,China). p9 r* f- i! L' V" G' t+ {0 z
Abstract: Technique situation of removal of SO2and NOxis described,and conclusions as followswere drawn through analysis and comparison.
% a# ~7 r) y+ W! f1 J' |The investment and running cost of SO2removal in wet method is high and its byproducts are useless;on the contrary,the cost of SO2removal6 W2 \, z* _. s
by use of electron beam is 20%~30% lowerthan that inwetmethod,but strict and giant radiation defensive facilities are neededwith expens-
( e9 `% b3 m1 _) tive accelerator and energy loss is great.Also it is suggested that SO2in flue gas can be oxidized and solid particles of (NH4)2SO4are generated/ y7 G( p# }; j% D
by using strong barring dielectric discharge which is hopeful to resolve the pollution of SO2and NOxin China.
# A2 F" p% b8 ?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
