| 采用蜂窝状筛网催化剂进行NH_3选择性催化还原NO的反应 |
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| 引用本文： | 张润铎,全燮,杨凤林,郑钟植.采用蜂窝状筛网催化剂进行NH_3选择性催化还原NO的反应[J].化学工程,2003,31(2):33-37. |
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| 作者姓名： | 张润铎 全燮 杨凤林 郑钟植 |
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| 作者单位： | 1. 大连理工大学,环境科学与工程学院,辽宁,大连,116012
2. 浦项工科大学,环境工程学院,韩国,庆尚北浦项,790-784 |
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| 摘 要： | 采用蜂窝状筛网催化剂用于以NH3为还原剂选择性催化还原 (SCR)NO的反应。考察了TiO2 负载量、催化剂组分、模件的齿高、催化剂长度以及筛网目数等因素对其催化行为的影响。结果表明 :8gTiO2 可将62 0cm2 的筛网模件表面完全覆盖 ,此时催化活性最佳。V( 1) W ( 3 ) /TiO2 的蜂窝状筛网催化剂表面存在聚合的钒基物种。催化剂长度大于 5cm时 ,不存在进口效应。筛网目数小于 2 4目时 ,NO转化率随筛网目数的增加而增加
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| 关 键 词： | 蜂窝状 筛网 选择性催化还原(SCR) NO |
| 文章编号： | 1005-9954(2003)02-0033-05 |
Selective Catalytic Reduction of NO with NH3 on Wire-Mesh-Honeycomb |
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| ZHANG Run-duo ,QUAN Xie ,YANG Feng-lin ,Jong Silk Chung.Selective Catalytic Reduction of NO with NH3 on Wire-Mesh-Honeycomb[J].Chemical Engineering,2003,31(2):33-37. |
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| Authors: | ZHANG Run-duo QUAN Xie YANG Feng-lin Jong Silk Chung |
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| Affiliation: | ZHANG Run-duo 1,QUAN Xie 1,YANG Feng-lin 1,Jong Silk Chung 2 |
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| Abstract: | The effects of TiO_2 loading amount, catalyst component, module pitch, catalyst length, mesh number on the catalytic properties of wire-mesh-honeycomb were investigated. Since 8g TiO_2 could fully cover the surface of module with the area of 620 cm 2, optimal NO conversion was achieved under such condition. Polymeric metavanadate species existed on the surface of wire-mesh-honeycomb loaded with V(l)-W(3)/TiO_2. Almost no entrance effect was observed for wire-mesh-honeycomb with its length above 5cm. NO conversion was improved with the increase of mesh number when mesh number was less than 24. |
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| Keywords: | honeycomb wire mesh selective catalytic reduction (SCR) NO |
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