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脱硫脱硝技术展望7 b# n6 a# @& e$ f3 |
! A: q, A. @6 r! b" v韩 慧,白敏冬,白希尧. z& S/ l" k& t
(大连海事大学环境工程研究所,辽宁大连 116026)+ S# q9 H! C3 t' x# e( W* a3 G7 e
# |& }: W& s/ w; a) }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
Y! j7 y5 _8 f$ ^, ]$ 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! z: a: s1 m9 b5 m1 ]) |/ N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。0 {7 a2 C 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% Q6 D1 f1 S- C
中图分类号:X703·1 文献标识码:A 文章编号:1001-6929(2002)01-0055-03
6 `' A6 p$ Z/ r3 r E2 oProspect of SO2and NOxRemoval Technology. j( w6 V4 @; r3 R" c2 _. o
HANHui, BAI Min-dong, BAI Xi-yao5 V* f& m, |! ^% R
(Environmental Engineering Research Institute,Dalian Maritime University,Dalian 116026,China)
/ n0 ]8 |4 G! ]Abstract: Technique situation of removal of SO2and NOxis described,and conclusions as followswere drawn through analysis and comparison.
+ G' W+ ]3 F7 ^1 c7 f+ Q& ?1 ?The investment and running cost of SO2removal in wet method is high and its byproducts are useless;on the contrary,the cost of SO2removal) W: S4 s) x, R# K* X0 O$ U
by use of electron beam is 20%~30% lowerthan that inwetmethod,but strict and giant radiation defensive facilities are neededwith expens-
8 S7 i$ D0 z+ Xive accelerator and energy loss is great.Also it is suggested that SO2in flue gas can be oxidized and solid particles of (NH4)2SO4are generated( S7 F o( z0 U% ?) p" F
by using strong barring dielectric discharge which is hopeful to resolve the pollution of SO2and NOxin China.5 C0 C, y8 K* h1 L. m
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
