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脱硫脱硝技术展望/ C8 u' O$ n/ l, L
/ V! d, o+ b3 ]8 t& ?' G韩 慧,白敏冬,白希尧, e) A+ {7 x) Z
(大连海事大学环境工程研究所,辽宁大连 116026)
& T5 I: ` p1 R2 R
% c/ F. w& K: c- J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
8 x8 ~0 g7 d/ c' Z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
+ k# j, |* z& A+ f2 m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。
; C) {' z/ V+ e) Z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5 X- y& H0 f U. Y' ~
中图分类号:X703·1 文献标识码:A 文章编号:1001-6929(2002)01-0055-03
3 K7 w" d: T6 t, JProspect of SO2and NOxRemoval Technology# h" l: c* L/ E \- W- |- D
HANHui, BAI Min-dong, BAI Xi-yao& {& V ?2 p+ d9 U
(Environmental Engineering Research Institute,Dalian Maritime University,Dalian 116026,China)
, z9 O- q, A+ y& v |$ eAbstract: Technique situation of removal of SO2and NOxis described,and conclusions as followswere drawn through analysis and comparison.
* m. J1 G f% o8 x& O/ h8 JThe investment and running cost of SO2removal in wet method is high and its byproducts are useless;on the contrary,the cost of SO2removal7 {5 [9 f( ]* Y; h! I4 @
by use of electron beam is 20%~30% lowerthan that inwetmethod,but strict and giant radiation defensive facilities are neededwith expens-! U- B; O& F: U
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* Y# ]7 P) i! P8 W* Z( [& ^
by using strong barring dielectric discharge which is hopeful to resolve the pollution of SO2and NOxin China./ m+ `* q6 W8 V: B2 H; f
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
