Abstract:

The fundamental principles and relative characteristics of various determination methods of chlorine in reforming catalysts were introduced. The effect of pH and interferential ions on experimental results was investigated. The precisions and standard recovery rates of 3 kinds of methods were tested. The results indicated that the methods of potentiometric titration、ion chromatography and ion selective electrode have high accuracy and good repeatability.

Key words: reforming catalyst, chlorine content determination, potentiometric titration, ion chromatograph, ion selective electrode