Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10547602 | Journal of Analytical and Applied Pyrolysis | 2005 | 16 Pages |
Abstract
In this paper we present an overview of the most relevant mathematical aspects involved in the kinetic analysis of thermal decomposition processes, especially when TG-DTG is used. The topics presented comprise errors introduced in the kinetic analysis by deviations in temperature from the preset control temperature program; treatment of 'raw-data' introducing simple techniques for filtering the data and get both smooth and accurate derivative thermogravimetric curves; comments on the correct specification of the mathematical model; fitting data to a mathematical model: the (arguably) obsolete differential methods, and the integral methods at the view of the modern computers; validity of the least-squares approach and modern techniques of optimization applied to the TG/DTG analysis; and quality of the fit and the fitted parameters.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
José A. Caballero, Juan A. Conesa,