KINETIC-STUDY OF THE AMMOXIDATION OF METHYLPYRAZINE TO CYANOPYRAZINE

被引：10

作者：

FORNI, L

机构：

[1] Univ di Milano, Milan, Italy, Univ di Milano, Milan, Italy

来源：

APPLIED CATALYSIS | 1988年 / 37卷 / 1-2期

关键词：

CHEMICAL REACTIONS - Reaction Kinetics - DIFFUSION - STEAM;

D O I：

10.1016/S0166-9834(00)80768-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The kinetic study of the ammoxidation of methylpyrazine to cyanopyrazine was carried out at 583-643 K and atmospheric pressure, in excess steam. Apparent partial reaction orders were - 0. 4, 0. 7, 0. 02 and 0. 2, with respect to methylpyrazine, oxygen, ammonia and water, respectively. A pseudo-first order model fitted experimental data satisfactorily. However, low values (50 kJ/mol or less) of the apparent activation energy indicate that the kinetics are probably controlled by internal diffusion.

引用

页码：305 / 314

页数：10