石油炼制与化工 ›› 2016, Vol. 47 ›› Issue (1): 101-104.

• 分析与评定 • 上一篇    

重整催化剂中氯含量的测定方法与选择

赵雅郡,潘锦程,周勇,谢莉   

  1. 中国石化石油化工科学研究院
  • 收稿日期:2015-07-03 修回日期:2015-08-22 出版日期:2016-01-12 发布日期:2015-12-31
  • 通讯作者: 赵雅郡 E-mail:zhaoyaj.ripp@sinopec.com

DETERMINATION METHODS OF CHLORINE IN REFORMING CATALYSTS

  • Received:2015-07-03 Revised:2015-08-22 Online:2016-01-12 Published:2015-12-31

摘要:

论述了重整催化剂中氯含量的三种测定方法的基本原理和相关特点,探讨了各种方法的实验条件如pH值、干扰离子等,进行了精密度和加标回收率实验。结果表明,自动电位滴定法、离子色谱法和离子选择电极法测定重整催化剂中Cl-含量时,准确度高,重复性好。

关键词: 重整催化剂, 氯含量分析, 电位滴定, 离子色谱, 离子选择电极

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