Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 49: Issue 1
Determination of Ca/NaY zeolite acidity by TG and DSC
Authors:
A. de Araujo Dept. Química, UFRN, CP 1662, 59078-970 Natal, RN, Brazil

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V. Fernandes Dept. Química, UFRN, CP 1662, 59078-970 Natal, RN, Brazil

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G. Fernandes Dept. Química, UFRN, CP 1662, 59078-970 Natal, RN, Brazil

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Pages:
567–572
Online Publication Date:
03 Aug 2005
Publication Date:
01 Jul 1997
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf01987484
Keywords:
acid solid catalyst; Ca/Na zeolite; heterogeneous catalysis
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Abstract  

The acid properties of the Ca/NaY zeolite were investigated by means ofn-butylamine desorption and thermal decomposition, using both thermogravimetry (TG) and differential scanning calorimetry (DSC). The total acidity of the zeolite was calculated from the TG data, while DSC was used with the Borchardt-Daniels kinetic model to determine the relative acid strength of the catalyst, given in J per acid site. The enthalpies of these processes are proportional to the acid site strength in each specific temperature range.

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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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