摘要本课题实验方法采用共沉淀-热解法，制备Sn-Fe-O固体催化剂样品。研究铁基催化剂掺杂活性组分和助剂后的脱硝活性的变化，并探究在制备催化剂阶段氧气对催化剂活性的影响，借助XED表征手段对催化剂样品进行表征分析。结果表明，活性组分和助剂掺杂的铁基催化剂最高可达99%，在250-425℃温度区间内脱硝活性稳定，保持在70%以上；掺杂的活性组分和助剂能细化催化剂晶粒，增强催化剂脱销活性，活性组分间的强相会作用有利于提高催化剂的脱硝活性，在制备催化剂过程中氧气的有无，对催化剂的脱硝活性的没有影响。77136

毕业论文关键词：金属催化剂；脱销；热解；选择性催化  掺杂 

毕业设计说明书外文摘要

Title      Preparation of Sn-Fe-O catalyst solid         

Abstract  This topic experimental method by coprecipitation - fumed, prepared Sn-Fe-O solid catalyst sample。 Iron-based catalysts doped active ingredient and additives change after denitration activity, and explore the impact of the catalyst preparation stage oxygen on the catalytic activity in the means of characterization methods XED catalysts were characterized and analyzed。 The results showed that the active component and iron-based catalysts doped aid up to 99% removal activity stable within the temperature range of 250-425 ℃, holding 70% or more; doped active ingredients and additives can be fine catalyst grains, enhance the activity of the catalyst out of stock, to meet the strong action of the active ingredient between help improve the denitration activity of the catalyst in the catalyst preparation process of the presence or absence of oxygen, there is no impact on the denitrification catalyst activity。

Keywords: metal catalyst; stock; pyrolysis; selective catalytic doping

目次

1 绪论 1

1。1引言 1

1。2氮氧化物治理的必要性 2

1。3氮氧化物的治理技术 3

1。4 SCR 脱硝工艺原理及流程 3

1。4。1工艺原理 3

1。4。2工艺流程 5

1。5 SCR脱硝催化剂 6

1。5。1 SCR脱硝催化剂的种类 6

1。5。2 SCR脱硝催化剂活性组分和助剂的作用 7

1。5。3 SCR脱硝催化剂市场分析 7

1。6  本实验课题的主要研究内容 7

2 实验部分 9

2。1实验药品及仪器 9

2。2催化剂制备的实验步骤 10

2。3 催化剂的表征 11

2。3。1 XRD表征 11

2。4脱硝活性测试 12

2。4。1脱硝活性实验装置 12

2。4。2脱硝活性测试实验步骤 13

3 实验结果与讨论 15

3。1 XRD表征分析 15

3。2 脱硝活性测试结果与讨论 20

4结论 24

致谢 25

参考文献 26