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含氧化铁粉粒状脱硫剂的脱硫性能研究
) f1 I# V! }6 T1 u5 l; m5 c张佩芳,黄学敏3 z& t3 p% J- W; y* q% H8 N1 Y
(西安建筑科技大学环境与市政工程学院,陕西西安710055) l7 q7 d# p- f- P$ s) w
摘 要:干法脱硫由于其脱硫剂利用率低而未达到广泛的应用,为研究高效的干法脱硫剂,在干法粒状脱硫剂% S8 z e" M3 N
中加入金属氧化物Fe2O3作为催化剂,通过实验确定直径、蒸汽活化、加湿和加入Fe2O3粉对脱硫剂脱硫速率' n+ ]5 A; U, f% y( j
及钙利用率的影响,从而确定Fe2O3粉的催化性能并初步分析其催化机理.由曲线图中曲线对比可得,Fe2O3. M! s1 |2 z3 V) F3 m/ {) a
粉的催化性能与其投加量有关,少量Fe2O3粉与过量Fe2O3粉对反应的促进作用不明显,所以存在最佳的添加
0 @% ]! d. K1 {( D量,由实验可得其最佳添加量在总质量的1.5%~6%之间.# r4 z0 C7 Y+ b% J, e
关键词:粒状脱硫剂; Fe2O3粉;脱硫速率;钙利用率
* t8 U1 ~/ r) k. r% i( {9 l中图分类号:X511 文献标识码:A 文章编号:1006-7930(2004)02-0163-03
1 E; G: T9 B8 gThe research of dry SO2absorbent with Fe2O39 z. g5 {2 g' k. [% P. g
ZHANG Pei-fang,HUANG Xue-min
1 @+ f+ E4 w( ]6 M4 ]. N; d(School of Envi.And Muni. Eng., Xi’an Univ. of Arch. &Tech., Xi’an 710055 ,China)
/ c& ?$ l$ `, u: H1 PAbstract ue to its low efficiency, the method of dry desulphurization, cannot be widely used .In order to get high
) a2 G( a% Z, l( Uactive absorbents, the metal oxide Fe2O3is mixed with absorbents as the catalyzer .By experiments the effect of particle/ [/ {; G; a$ Z4 M; j9 [3 H
diameter and steam activation, wetting, Fe2O3on desulphurization velocity and calcium efficiency is defined.So is derived
1 X2 G3 B4 |$ z5 |& mthe catalysis of Fe2O3is derived and primariy analysis on the catalytic mechanism is fulfilled. From the figures the
- v- U( D1 ]7 m; B3 Vcatalysis of Fe2O3is connected with the quantity is obtained. Less Fe2O3and more Fe2O3cannot promote the reaction.
8 X G3 A5 n7 [+ c1 N. c9 j# e" g8 dThe optical weight is caught between 1.5% and 6% of total weight from the experiments.
3 x5 n# M, a" r9 g7 a' s3 `Key words:columnar SO2absorbent;Fe2O3;desulphurization velocity;calcium efficiency |
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发表于 2009-9-3 09:51:51
