Kinetics of the thermal decomposition of tannery waste

被引：58

作者：

Caballero, JA ^{[1
]}

Font, R ^{[1
]}

Esperanza, MM ^{[1
]}

机构：

[1] Univ Alicante, Dept Chem Engn, E-03080 Alicante, Spain

来源：

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS | 1998年 / 47卷 / 02期

关键词：

tanned leather; TG-DTG; oxygen; oxidation; combustion; pyrolysis;

D O I：

10.1016/S0165-2370(98)00081-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The kinetics of the global primary thermal decomposition of tanned leather was studied using TG-DTG in strict pyrolysis conditions and with different proportions of oxygen. The pyrolysis of tanned leather is modeled assuming that it is formed by two different fractions which decompose by two independent reactions. The introduction of oxygen produces the apparition of a new process that it is interpreted as the combustion of the char formed in the pyrolysis. Although it is admitted that the first step in the combustion is the pyrolysis, there is a small range of coincidence between the TG curves carried out in an inert atmosphere and with different quantities of oxygen. Thus, the first two global processes are modeled as a sum of two contributions pyrolysis plus oxidation or combustion, and the third is mainly due to combustion. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：165 / 181

页数：17

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