Kinetics of Catalytic Oxidation of Sulfite inDiluted Aqueous Solutions

被引：4

作者：

Opletal, Michal ^{[1
]}

Novotny, Petr ^{[1
]}

Rejl, Frantisek J. ^{[1
]}

Moucha, Tomas ^{[1
]}

Kordac, Michal ^{[1
]}

机构：

[1] Univ Chem & Technol, Dept Chem Engn, Prague, Czech Republic

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2015年 / 38卷 / 11期

关键词：

Deoxygenation; Loop reactor; Gas-liquid reactions; Reaction order; Reaction rate; MASS-TRANSFER; MECHANISM;

D O I：

10.1002/ceat.201500064

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The reaction kinetics for low concentrations of sulfite close to the stoichiometric ration of oxygen was investigated in a rapid-mixing apparatus. Air- or pure oxygen-saturated solution containing the catalyst was mixed with aqueous sulfite solution. Mixing ratios with stoichiometric excess of dissolved oxygen were tested. Reaction orders for sulfite, oxygen, and a Co(II) catalyst from literature were confirmed in the tested concentration range. The apparent kinetic constant and activation energy data are presented. The high importance of proper mixing of the two reacting solutions is reported, which was revealed during the development of the precise experimental technique providing reliable kinetic data.

引用

页码：1919 / 1924

页数：6

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