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脱硫脱硝技术展望) v% ?* q: c, B3 ]$ D8 C; ^
5 U7 d9 R" L8 ~9 F2 C9 }韩 慧,白敏冬,白希尧9 f- D: f6 P1 v5 u3 I8 t: Y
(大连海事大学环境工程研究所,辽宁大连 116026)
$ ^- W3 W8 F8 B: m1 S3 M; i7 r
+ Q+ Y7 q8 ^; a4 V, r1 l3 h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
, r4 o( {! E Z: n' t0 N) [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
+ T, ^4 j1 n+ U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。
4 s, t/ w$ v% D/ G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
; k% x0 v) l* J4 V [中图分类号:X703·1 文献标识码:A 文章编号:1001-6929(2002)01-0055-03
" s" O3 L8 [$ ^% s" B8 U4 DProspect of SO2and NOxRemoval Technology
! A; s; n# ~4 P1 k' J$ RHANHui, BAI Min-dong, BAI Xi-yao$ l0 K( Y# Y: l) Y7 d4 P
(Environmental Engineering Research Institute,Dalian Maritime University,Dalian 116026,China)6 T1 ]' B# ~1 r0 j7 j: H" ]
Abstract: Technique situation of removal of SO2and NOxis described,and conclusions as followswere drawn through analysis and comparison., W7 B" j2 f5 E) p
The investment and running cost of SO2removal in wet method is high and its byproducts are useless;on the contrary,the cost of SO2removal' o- {' \* P5 z
by use of electron beam is 20%~30% lowerthan that inwetmethod,but strict and giant radiation defensive facilities are neededwith expens-" ]7 o; o7 {* e
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- P3 T4 I1 \! g3 @
by using strong barring dielectric discharge which is hopeful to resolve the pollution of SO2and NOxin China.
" y% [! k& L Q C" {+ _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
