Pitch pyrolysis kinetics from single TG curve

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F04%3A00000018" target="_blank" >RIV/61988987:17310/04:00000018 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Pitch pyrolysis kinetics from single TG curve

Original language description

Global pitch pyrolysis kinetic parameters determined by different methods from single thermogravimetric curves are compared. Differential (Freeman - Carroll, Vachuška - Vobořil), integral (Coats - Redfern, Horowitz - Metzger) and the method of direct non-linear regression were used. Direct non-linear regression is the most suitable when the whole kinetic triplet (activation energy, frequency factor and reaction order) is searched, but the results are not quite satisfactory. If the global first order kinetic of pitch pyrolysis is accepted, similar values of activation energy and frequency factor were obtained by different methods. Considering the quality of results and applicability Coats and Redfern method is recommended in this case.

Czech name

Kinetika pyrolýzy smoly z TG dat

Czech description

Global pitch pyrolysis kinetic parameters determined by different methods from single thermogravimetric curves are compared. Differential (Freeman - Carroll, Vachuška - Vobořil), integral (Coats - Redfern, Horowitz - Metzger) and the method of direct non-linear regression were used. Direct non-linear regression is the most suitable when the whole kinetic triplet (activation energy, frequency factor and reaction order) is searched, but the results are not quite satisfactory. If the global first order kinetic of pitch pyrolysis is accepted, similar values of activation energy and frequency factor were obtained by different methods. Considering the quality of results and applicability Coats and Redfern method is recommended in this case.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

—

Project

<a href="/en/project/GA105%2F03%2F0538" target="_blank" >GA105/03/0538: Initial stage of spontaneous heating of the coal and the possibilities of its affecting</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2004

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of analytical and applied pyrolysis

ISSN

0165-2370

e-ISSN

—

Volume of the periodical

72

Issue of the periodical within the volume

—

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

4

Pages from-to

249

UT code for WoS article

—

EID of the result in the Scopus database

—