Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 87: Issue 3
Kinetic study of the thermal decomposition of TEA+/SAPO-5
Authors:
D. Brito Universidade Estadual da Paraíba Departamento de Química, CCT Campina Grande Brazil CEP 58109-790 PB Campina Grande Brazil CEP 58109-790 PB

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E. Silva Universidade Estadual da Paraíba Departamento de Química, CCT Campina Grande Brazil CEP 58109-790 PB Campina Grande Brazil CEP 58109-790 PB

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D. Rodrigues Universidade Federal da Paraíba Departamento de Química, CCEN João Pessoa Brazil CEP 58059-900 PB João Pessoa Brazil CEP 58059-900 PB

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M. Machado Universidade Estadual da Paraíba Departamento de Química, CCT Campina Grande Brazil CEP 58109-790 PB Campina Grande Brazil CEP 58109-790 PB

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M. Silva Universidade Estadual da Paraíba Departamento de Química, CCT Campina Grande Brazil CEP 58109-790 PB Campina Grande Brazil CEP 58109-790 PB

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V. Simões Universidade Federal de Campina Grande Departamento de Engenharia Química, CCT Campina Brazil 58100-000 Campina Brazil 58100-000

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M. Carvalho Universidade Federal de Campina Grande Departamento de Engenharia Química, CCT Campina Brazil 58100-000 Campina Brazil 58100-000

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L. Soledade Universidade Federal da Paraíba Departamento de Química, CCEN João Pessoa Brazil CEP 58059-900 PB João Pessoa Brazil CEP 58059-900 PB

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Iêda Santos Universidade Federal da Paraíba Departamento de Química, CCEN João Pessoa Brazil CEP 58059-900 PB João Pessoa Brazil CEP 58059-900 PB

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A. Souza Universidade Federal da Paraíba Departamento de Química, CCEN João Pessoa Brazil CEP 58059-900 PB João Pessoa Brazil CEP 58059-900 PB

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Pages:
853–857
Online Publication Date:
09 Mar 2007
Publication Date:
01 Mar 2007
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-006-8189-7
Keywords:
kinetics; SAPO-5; thermal analysis
Restricted access

Abstract  

A silico alumino phosphate with AFI structure (SAPO-5) was prepared in a two-phase medium and characterized by XRD, followed by the addition of TEA+. The kinetics of the TEA+/SAPO-5 thermal decomposition reaction was studied by isothermal and dynamic thermogravimetry. Two kinetic models, D3 and D4 based on diffusion processes were found as best to fit the isothermal data. On the other hand, the best fit for the dynamic data is the F1 first order reaction model. According to the apparent activation energy values, the use of the dynamic method indicates a higher temperature dependence than the isothermal method.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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