吉林电力2024,Vol.52Issue(4) :20-25.

燃煤电厂蜂窝式脱硝催化剂的理化特性与活性关联分析

Correlation Analysis of Physical and Chemical Properties and Activity of Honeycomb Denitration Catalyst UCPP

宋绍伟 王霂晗 王慧贤 安风霞 林正根
吉林电力2024,Vol.52Issue(4) :20-25.

燃煤电厂蜂窝式脱硝催化剂的理化特性与活性关联分析

Correlation Analysis of Physical and Chemical Properties and Activity of Honeycomb Denitration Catalyst UCPP

宋绍伟 1王霂晗 2王慧贤 3安风霞 4林正根4
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作者信息

  • 1. 国家能源投资集团有限责任公司,北京 100010
  • 2. 龙源(北京)碳资产管理技术有限公司,北京 100034
  • 3. 国能龙源环保有限公司,北京 100039
  • 4. 国家能源集团科学技术研究院有限公司,南京 210023
  • 折叠

摘要

为了进一步加强生产厂家、电厂和检测实验室对燃煤电厂蜂窝式脱硝催化剂的性能尤其是活性的了解和重视,针对基于70组蜂窝式脱硝催化剂进行组分表征、结构表征和活性测量所得到的数据,进行Person相关性分析、箱线图分析以及聚类分析.结果表明,Person相关分析显示脱硝催化剂活性与比表面积、V2O5之间的相关系数绝对值分别为0.484、0.506,这二者的数值变动会相对比较明显地影响活性;SiO2和Al2O3间的相关系数值大于0.90,存在显著的相关性;催化剂中主要组分Ti、V、W氧化物的质量分数分别为77.91%~90.03%、0.35%~1.60%、2.24%~5.57%,V的含量变动范围相对较窄;SiO2和Al2O3在聚类结果中是一个类,与二者间存在显著相关性的结论相符;K、Mg、Na、Fe、As被聚为一个大类,其中碱金属元素对催化剂的活性具有负面影响.对燃煤电厂蜂窝式脱硝催化剂的实验测量参数进行相关性分析、箱线图分析和聚类分析,其结果具有可解释性.

Abstract

In order to further strengthen the understanding and attention of manufacturers,power plants and testing laboratories on the performance of honeycomb denitration catalysts,especially the activity,this paper conducts Person correlation analysis,box plot analysis and cluster analysis on the data obtained from component characterization,structural characterization and activity measurement based on 70 groups of honeycomb denitration catalysts.The results show that Person correlation analysis shows that the absolute value of the correlation coefficient between the activity of the denitration catalyst and the specific surface area and V2O5 is 0.484 and 0.506,respectively,and the numerical changes of these two will significantly affect the activity.The correlation coefficient between SiO2 and Al2O3 is greater than 0.90,indicating a significant correlation.The mass fractions of Ti,V and W oxides in the main components of the catalyst are 77.91%~90.03%,0.35%~1.60%and 2.24%~5.57%,respectively,and the variation range of V content is relatively narrow.SiO2 and Al2O3 are a class in the clustering results,which is consistent with the conclusion that there is a significant correlation between them.K,Na,Mg,Fe and As are clustered into one category,and alkalis elements have a negative impact on the activity of the catalyst.The experimental measurement parameters of honeycomb denitration catalyst were analyzed by correlation analysis,box plot analysis and cluster analysis,and the results were interpretable.

关键词

脱硝催化剂/活性/Person相关分析/箱线图/聚类分析

Key words

selective catalytic reduction catalyst/activity/Pearson correlation analysis/box-plot analysis/cluster analysis

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基金项目

国家重点研发计划项目(2022YFC3701504)

出版年

2024
吉林电力
吉林省电机工程学会,吉林省电力有限公司电力科学研究院

吉林电力

影响因子:0.338
ISSN:1009-5306
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