SIMULATION OF DYNAMIC THERMOGRAVIMETRIC CURVES - SINGLE AND COMPLEX-REACTIONS

• Type: Article in International Scientific Journal
• Date: 1993

Authors

José Melo Orfão (Author) FEUP; José Luis Figueiredo (Author) FEUP

Journal

Title: Thermochimica Acta

Vol. 217

Pages: 151-173

ISSN: 0040-6031

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 6 Citations

Scopus - 6 Citations

Other information

Authenticus ID: P-001-N5C

DOI: 10.1016/0040-6031(93)85105-i

Abstract (EN): Dynamic thermogravimetry is a technique widely used to study the kinetics of reactions involving solids. In this work, the fundamental properties which determine the shape and position of the TG and DTG curves are defined, namely the kinetic function and two dimensionless parameters gamma = E/RT0 and beta = AT0/b. The methodology used is extended to the case of complex reactions (competitive, consecutive and independent), referring to situations which may occur in practice and showing illustrative simulations. The pyrolysis of lignocellulosic materials is taken as an example, using data previously published.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 23