KINETICS OF CHEMICAL DESULFURIZATION OF COAL IN AQUEOUS FERRIC-CHLORIDE

被引：18

作者：

OSHINOWO, T

OFI, O

机构：

[1] Univ of Ife, Ile-Ife, Nigeria, Univ of Ife, Ile-Ife, Nigeria

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1987年 / 65卷 / 03期

关键词：

CHEMICAL ENGINEERING - Mathematical Models - CHEMICAL REACTIONS - Reaction Kinetics - IRON COMPOUNDS - Solutions - SULFUR COMPOUNDS - Oxidation;

D O I：

10.1002/cjce.5450650318

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The kinetics of the chemical desulphurization of Lafia coal by the oxidation of the pyritic sulphur component with aqueous ferric chloride has been investigated. The oxidation rate was found to increase significantly with increasing temperature and ferric chloride concentration but decreased with increasing coal particle size. The kinetic data were well described by the unreacted shrinking core model with the indication that the desulphurization was predominantly chemical reaction controlled. The rate of reaction was also found to be well correlated by a two-parameter pseudo-homogeneous kinetic model. The specific rate constant obtained showed a true Arrhenius temperature dependence.

引用

页码：481 / 486

页数：6

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