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含氧化铁粉粒状脱硫剂的脱硫性能研究
/ B! J* e9 R. S0 Y$ N- s' y6 \张佩芳,黄学敏
8 {, X' s9 ]! h7 {7 F. v0 K2 Y(西安建筑科技大学环境与市政工程学院,陕西西安710055)
b1 t/ D- S9 A' I& W; s, ^, f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8 ~) t! q3 N; D7 @9 ]
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5 W9 c$ m, G; U7 ^( a
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
3 o- n8 d) y8 d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2 r/ n+ W2 X v- X! z3 U/ Y
量,由实验可得其最佳添加量在总质量的1.5%~6%之间.: i6 }2 c% S% ]/ `6 _) b
关键词:粒状脱硫剂; Fe2O3粉;脱硫速率;钙利用率
% ^" y& k5 m$ n* ^中图分类号:X511 文献标识码:A 文章编号:1006-7930(2004)02-0163-03
. a; H7 \: R0 n2 \& cThe research of dry SO2absorbent with Fe2O3
& a' r ?1 u3 Q! T6 A* ^7 ?ZHANG Pei-fang,HUANG Xue-min
3 ]) A' h3 l' |+ g(School of Envi.And Muni. Eng., Xi’an Univ. of Arch. &Tech., Xi’an 710055 ,China)1 ~: H: B% L( F
Abstract ue to its low efficiency, the method of dry desulphurization, cannot be widely used .In order to get high
2 x6 d% h9 {6 t3 X) @active absorbents, the metal oxide Fe2O3is mixed with absorbents as the catalyzer .By experiments the effect of particle
6 P( W' L) O' o$ ~" p/ \diameter and steam activation, wetting, Fe2O3on desulphurization velocity and calcium efficiency is defined.So is derived8 [ w4 ], Y) y% X
the catalysis of Fe2O3is derived and primariy analysis on the catalytic mechanism is fulfilled. From the figures the
' n4 f4 p z" P8 O; ncatalysis of Fe2O3is connected with the quantity is obtained. Less Fe2O3and more Fe2O3cannot promote the reaction.
/ _: Z. ]. t! z( mThe optical weight is caught between 1.5% and 6% of total weight from the experiments.- |* K6 q" a. @6 ?* Q$ t, `) Z
Key words:columnar SO2absorbent;Fe2O3;desulphurization velocity;calcium efficiency |
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发表于 2009-9-3 09:51:51
