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制备条件对Fe/Al2O3选择性催化还原SO2的影响
引用本文:马林转,宁平,张爱敏,杨月红.制备条件对Fe/Al2O3选择性催化还原SO2的影响[J].武汉理工大学学报,2007,29(7):70-72.
作者姓名:马林转  宁平  张爱敏  杨月红
作者单位:1. 云南民族大学化学与生物技术学院,昆明,650031;昆明理工大学环境科学与工程学院,昆明,650093
2. 昆明理工大学环境科学与工程学院,昆明,650093
3. 昆明贵金属研究所,昆明,650101
基金项目:国家高技术研究发展计划(863计划);云南省自然科学基金
摘    要:不同负载量的Fe/Al2O3催化剂分别以浸渍法、共沉淀法和溶胶-凝胶法制得,对比评价了不同方法制备的催化剂样品以CO为还原剂,选择性催化还原SO2的活性。研究表明,铁催化剂有较高的去除SO2的活性,制备方法对催化剂活性具有显著影响。其中溶胶-凝胶法和共沉淀法最高活性分别可以达到95%和85%左右;而浸渍法样品的活性较差,最高转化率不到60%。3种不同组分催化剂的活性在低温时并不明显,在高温时明显地显示出高的负载量具有高的活性。

关 键 词:制备条件  选择性催化还原
文章编号:1671-4431(2007)07-0070-03
修稿时间:2007-03-19

Preparation Condition Effect on Selective Catalytic Reduction of SO2 over Fe/Al2O3
MA Lin-zhuan,NING Ping,ZHANG Ai-min,YANG Yue-hong.Preparation Condition Effect on Selective Catalytic Reduction of SO2 over Fe/Al2O3[J].Journal of Wuhan University of Technology,2007,29(7):70-72.
Authors:MA Lin-zhuan  NING Ping  ZHANG Ai-min  YANG Yue-hong
Affiliation:1. Faculty of Chemical and Biological Technology, Yunnan Nationalities University, Kunming 650031, China; 2. Faculty of Environment Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China; 3. Kunming Institute of Precious Metals, Kunming 650101, China
Abstract:People paid more attention on environment so that dealt with sulfur dioxide was urgent.Alumina-supported iron catalysts with different metal loadings were prepared by various methods including impregnation,co-precipitation and sol-gel. Activity tests were carried out on the selective catalytic reduction(SCR) of SO2 over the catalysts.The results showed that Fe/Al2O3 catalysts possed high SO2 activity,and the preparation methods had obvious effects on catalytic activities.The catalysts prepared by co-precipitation or sol-gel method exhibited high SO2 conversion to S about 95% and 85%;the impregnation samples had poor activities,the highest conversion rate was not exceeding 60%.Different loading catalysts's activity was not clear at low temperature;high loading had high activity in high temperature.
Keywords:SO2  Fe/Al2O3
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