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含氧化铁粉粒状脱硫剂的脱硫性能研究
+ ^1 h: W9 t& T% [% p5 w张佩芳,黄学敏' S* l+ H/ J" ?* m
(西安建筑科技大学环境与市政工程学院,陕西西安710055)
' ^% p( ~. a2 g9 z. Y+ O5 T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
1 n1 L" n4 V2 |6 x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% `* t- B" Y) R7 E, Y' L5 r
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
# {' Q. V- J+ O3 e+ O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' U6 S, o" R+ z8 n! z3 i2 y
量,由实验可得其最佳添加量在总质量的1.5%~6%之间.
4 h M# g5 p+ k! y关键词:粒状脱硫剂; Fe2O3粉;脱硫速率;钙利用率
' K( X5 C# h0 n! d中图分类号:X511 文献标识码:A 文章编号:1006-7930(2004)02-0163-03 , V S8 b, b+ i- t, f4 ~' L
The research of dry SO2absorbent with Fe2O36 M7 a2 \% c) m* R
ZHANG Pei-fang,HUANG Xue-min
" o8 `" M+ c6 B0 u! X(School of Envi.And Muni. Eng., Xi’an Univ. of Arch. &Tech., Xi’an 710055 ,China)
* J+ v$ ]5 t% s4 M$ r& C( f4 g: ]" gAbstract ue to its low efficiency, the method of dry desulphurization, cannot be widely used .In order to get high8 ?9 A, K; \/ W; k
active absorbents, the metal oxide Fe2O3is mixed with absorbents as the catalyzer .By experiments the effect of particle
/ c7 d$ z* T* \; a; C. gdiameter and steam activation, wetting, Fe2O3on desulphurization velocity and calcium efficiency is defined.So is derived2 ^4 t) o+ j( x$ w2 Z8 U& K) z
the catalysis of Fe2O3is derived and primariy analysis on the catalytic mechanism is fulfilled. From the figures the
+ @1 Q5 e5 X; \! L4 Scatalysis of Fe2O3is connected with the quantity is obtained. Less Fe2O3and more Fe2O3cannot promote the reaction.
3 n" i) c8 G$ {) D, D3 }The optical weight is caught between 1.5% and 6% of total weight from the experiments.4 |2 e* s3 w) ?* B
Key words:columnar SO2absorbent;Fe2O3;desulphurization velocity;calcium efficiency |
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发表于 2009-9-3 09:51:51
