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脱硫脱硝技术展望% L' R, u" Y. j" A! @
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韩 慧,白敏冬,白希尧4 o! T! I- Y0 b/ i2 ]2 U, b( X c
(大连海事大学环境工程研究所,辽宁大连 116026)
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h/ b1 c: i) j, W8 O" S9 j9 i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
# i c0 V R( R) R: t; J4 K6 B# 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
+ q. I9 X! d% }, h" [3 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。6 R$ V/ A+ t6 {6 P! s
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
. I7 a, Z- n0 ~- j中图分类号:X703·1 文献标识码:A 文章编号:1001-6929(2002)01-0055-03
$ Y6 c# z3 f$ S( H; tProspect of SO2and NOxRemoval Technology3 d* V! l# B$ H0 J/ f C
HANHui, BAI Min-dong, BAI Xi-yao
1 v: U6 v8 m$ |(Environmental Engineering Research Institute,Dalian Maritime University,Dalian 116026,China)+ M' L$ j* q4 Z1 ~+ i5 R
Abstract: Technique situation of removal of SO2and NOxis described,and conclusions as followswere drawn through analysis and comparison.
3 H( G3 F' m8 J# ^! L( z* ?The investment and running cost of SO2removal in wet method is high and its byproducts are useless;on the contrary,the cost of SO2removal
# H# t& f4 U& t9 L7 W0 Kby use of electron beam is 20%~30% lowerthan that inwetmethod,but strict and giant radiation defensive facilities are neededwith expens-0 Q/ Y% R% T: l5 C- h6 [. M) I
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& K+ Y. D: X* V4 e
by using strong barring dielectric discharge which is hopeful to resolve the pollution of SO2and NOxin China.
7 w7 {; s" m d) Y- _$ [5 C7 kKey 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
