摘要
在单颗粒串联的色谱柱中 ,采用示踪气体脉冲讯号输入一响应的动态法 ,由计算机自动采样分析应答曲线 ,通过参数估值得到气体在 ZA- 5氨合成催化剂中的有效扩散系数 ,进而得到曲折因子。测定得到的 ZA- 5氨合成催化剂曲折因子为 3.1 1。
In a chromatography column packed with more than 50 particles of ZA 5 ammonia synthesis catalyst,the pulse answer curves created by injected trace gas are auto analyzed by an on line computer system so that the first absolute and the second central moments are attainable.Parameter estimation method is adopted to get the effective diffusion coefficient from experimetal data,thus the tortuosity factor can be obtained.The tortuosity factor of ZA 5 catalyst is 3 11.
出处
《工业催化》
CAS
2001年第4期61-64,共4页
Industrial Catalysis
基金
国家计委九五科技攻关项目 (96 - 5 5 0 - 0 2 - 0 2)
