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含氧化铁粉粒状脱硫剂的脱硫性能研究# n y2 h7 R4 y% b$ s; A
张佩芳,黄学敏 f* a) n8 N8 |) i
(西安建筑科技大学环境与市政工程学院,陕西西安710055)6 @) M- ?$ z5 Y9 I1 d( |5 h+ K
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
7 x7 L% u9 W s0 B- S) e/ u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
. ~: Q2 I M5 {2 N0 |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
( z+ L' w' m: }* S: m; X ?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
* J- ?% t8 Q ~ t- T( t* ~) f量,由实验可得其最佳添加量在总质量的1.5%~6%之间.5 [2 z. G% D2 X3 D' s
关键词:粒状脱硫剂; Fe2O3粉;脱硫速率;钙利用率9 u% w, {) u3 X" l, g0 X3 {
中图分类号:X511 文献标识码:A 文章编号:1006-7930(2004)02-0163-03
* ^8 M2 B7 @7 n9 E8 z. E5 y7 i# RThe research of dry SO2absorbent with Fe2O3
0 v" O9 Y X- u" X7 }% T" XZHANG Pei-fang,HUANG Xue-min0 I$ k. u0 ~* I; o
(School of Envi.And Muni. Eng., Xi’an Univ. of Arch. &Tech., Xi’an 710055 ,China)2 @9 [- {, d5 E+ E& b7 d/ F
Abstract ue to its low efficiency, the method of dry desulphurization, cannot be widely used .In order to get high8 l* r0 W7 Z" T4 q( g. s- G
active absorbents, the metal oxide Fe2O3is mixed with absorbents as the catalyzer .By experiments the effect of particle
; z, [1 E8 d2 o. Tdiameter and steam activation, wetting, Fe2O3on desulphurization velocity and calcium efficiency is defined.So is derived4 f" s0 A1 y6 f. M \! a
the catalysis of Fe2O3is derived and primariy analysis on the catalytic mechanism is fulfilled. From the figures the
/ s; s+ J- B( O: j' _catalysis of Fe2O3is connected with the quantity is obtained. Less Fe2O3and more Fe2O3cannot promote the reaction.
) w) I$ g9 k1 }8 e0 X9 _The optical weight is caught between 1.5% and 6% of total weight from the experiments.
; [' R, E" l( lKey words:columnar SO2absorbent;Fe2O3;desulphurization velocity;calcium efficiency |
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发表于 2009-9-3 09:51:51
