SIMULATION OF DYNAMIC THERMOGRAVIMETRIC CURVES - SINGLE AND COMPLEX-REACTIONS

• Tipo: Artigo em Revista Científica Internacional
• Data: 1993

Autores

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

Revista

Título: Thermochimica Acta

Vol. 217

Páginas: 151-173

ISSN: 0040-6031

Editora: Elsevier

Indexação

ISI Web of Knowledge - 6 Citações

Scopus - 6 Citações

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 23