中华医学超声杂志

应用化学 ›› 1994, Vol. 0 ›› Issue (6): 69-72.

• 研究论文 • 上一篇    下一篇

Pt/NM、Pd/NM催化剂上甲苯深度氧化反应动力学

罗孟飞, 袁贤鑫, 陈敏   

  1. 杭州大学催化研究所 杭州 310028
  • 收稿日期:1994-03-09 修回日期:1994-06-16 出版日期:1994-12-10 发布日期:1994-12-10

Kinetics of Deep Oxidation of Toluene over Pt/NM、Pd/NM Catalysts

Luo Mengfei, Yuan Xianxin, Chen Min   

  1. Catalysis Institute Hangzhou University, Hangzhou 310028
  • Received:1994-03-09 Revised:1994-06-16 Published:1994-12-10 Online:1994-12-10

PDF

444

被引次数

2

摘要： 在氧气过量的条件下,考察了Pt/NM、Pd/NM催化剂上甲苯深度氧化反应动力学及反应活性。Pt/NM催化剂对甲苯的氢化活性高于Pd/NM,深度氧化反应服从反应物强吸附双分子反应Ltangmuir-Hinshelwood机理,其动力学方程为相应的动力学参数,Pt/NM为:活化能△E=49.9kJ/mol,吸附热Q=-29.6kJ/mol;Pd/NM为:△E=94.2kJ/mol,Q=-19.1kJ/mol。

关键词: 甲苯, 氧化动力学, 铂, 钯

Abstract: The deep oxidation kinetics of toluene over PtINM and Pd/NM catalysts was studied in the presence of large excess of oxygen. The catalytic activity of Pt/NM was higher than that of Pd/NM. The rate of the catalytic oxydation could be described by equation The aparent activation energy(△E) and the heat of absorption(Q) of toluene on the catalyst surface were calculated as 49.9(kJ/mol),-29.6(kJ/mol)for Pt/NM and 94.2(kJ/mol),-19.1(kJ/mol)for Pd/NM respectively.

Key words: toluene, oxydation kinetics, Pt, Pd

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