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含氧化铁粉粒状脱硫剂的脱硫性能研究
8 x( a$ M) c$ b7 c' _4 u# f张佩芳,黄学敏! @+ r2 Z; ? ?) j
(西安建筑科技大学环境与市政工程学院,陕西西安710055)' V+ s! {; e6 X
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3 l$ }2 Y, @# o: t; }! b+ Y
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9 a, V' t% G% a: G
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,Fe2O33 N* ?$ s: ^# O% ^5 p3 j
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; z. d, j* Y( P) m1 c1 T. h& |
量,由实验可得其最佳添加量在总质量的1.5%~6%之间., ]; A, t2 O. x
关键词:粒状脱硫剂; Fe2O3粉;脱硫速率;钙利用率- Z4 ?2 r$ Z/ n/ |/ G" a- Z3 ]
中图分类号:X511 文献标识码:A 文章编号:1006-7930(2004)02-0163-03
+ T; B/ Y2 s4 z7 I- NThe research of dry SO2absorbent with Fe2O3
/ W1 P% P: o( U; _3 z! gZHANG Pei-fang,HUANG Xue-min
9 Q8 H6 f8 R: y" Y I- ](School of Envi.And Muni. Eng., Xi’an Univ. of Arch. &Tech., Xi’an 710055 ,China)
4 J( t- V1 _+ i. a3 u2 {Abstract ue to its low efficiency, the method of dry desulphurization, cannot be widely used .In order to get high
% o. a* ?# x& B: b8 N2 Oactive absorbents, the metal oxide Fe2O3is mixed with absorbents as the catalyzer .By experiments the effect of particle1 [4 x4 s- I" O
diameter and steam activation, wetting, Fe2O3on desulphurization velocity and calcium efficiency is defined.So is derived
; H( n' d! |" t: C. }the catalysis of Fe2O3is derived and primariy analysis on the catalytic mechanism is fulfilled. From the figures the( J% X$ w8 n( Z# C4 M: f
catalysis of Fe2O3is connected with the quantity is obtained. Less Fe2O3and more Fe2O3cannot promote the reaction.
0 v8 l/ k; \) t" ]The optical weight is caught between 1.5% and 6% of total weight from the experiments.
; o/ B0 e% U) [" @6 DKey words:columnar SO2absorbent;Fe2O3;desulphurization velocity;calcium efficiency |
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发表于 2009-9-3 09:51:51
