氮气吸附法与压汞法测试脱硝催化剂孔容孔径的对比分析  

Comparative Analysis of Pore Volume and Pore Diameter of Denitrification Catalyst by Nitrogen Adsorption Method and Mercury Injection Method

作　　者：闫力 YAN Li(Datang Nanjing Environmental Protection Technology Co.,Ltd.,Nanjing 211111,China)

机构地区：[1]大唐南京环保科技有限责任公司,江苏南京211111

出　　处：《化工管理》2020年第13期48-51,共4页Chemical Engineering Management

摘　　要：压汞法是测量脱硝催化剂孔容孔径的主要方法,具有测量范围宽、检测效率高、技术应用成熟等优点.压汞法产生的含汞废弃物是国家管控和治理的重要目标,限制了其进一步使用.文章采用压汞法和氮吸附法同时对脱硝催化剂进行孔容孔径表征.研究发现,在介孔范围内,两种方法检测数据基本一致.同时,在控制比表面积、机械强度指标的前提下,介孔的研究更具有意义.因此,在脱硝催化剂检测方面,氮气吸附法可有效替代压汞法.Mercury injection method is the main method to measure the pore volume and pore diameter of denitration catalyst,which has the advantages of wide measurement range,high detection efficiency and mature technology application.Mercury containing waste produced by mercury injection is an important goal of national management and control,which limits its further use.In this paper,the pore volume and pore size of denitration catalyst were characterized by mercury injection and nitrogen adsorption.It is found that the data of the two methods are basically the same in the mesoporous range.At the same time,under the premise of controlling specific surface area and mechanical strength index,the study of mesopores is more significant.Therefore,in the detection of denitration catalyst,nitrogen adsorption method can effectively replace mercury injection method.

关 键 词：孔容孔径 压汞法 氮气吸附法 

分 类 号：X701[环境科学与工程—环境工程]