Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 97: Issue 2
Influence of drying processes on oxidative stability of ethyl corn biodiesel by differential scanning calorimetry
Authors:
A. Vasconcelos

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M. Dantas Universidade Federal da Paraíba Departamento de Química, CCEN Campus I Joao Pessoa PB 58059-900 Brazil

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M. Filho

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R. Rosenhaim Universidade Federal da Paraíba Departamento de Química, CCEN Campus I Joao Pessoa PB 58059-900 Brazil

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E. Cavalcanti Instituto Nacional de Tecnologia Laboratório de Corrosão e Proteção, DCD 20081-312 Rio de Janeiro RJ Brazil

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N. Antoniosi Filho Universidade Federal de Goiás Departamento de Química Goiania GO Brazil

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F. Sinfrônio Universidade Federal da Paraíba Departamento de Química, CCEN Campus I Joao Pessoa PB 58059-900 Brazil

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I. Santos Universidade Federal da Paraíba Departamento de Química, CCEN Campus I Joao Pessoa PB 58059-900 Brazil

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A. Souza Universidade Federal da Paraíba Departamento de Química, CCEN Campus I Joao Pessoa PB 58059-900 Brazil

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Pages:
657–660
Online Publication Date:
28 Aug 2009
Publication Date:
01 Aug 2009
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-009-0364-1
Keywords:
Biodiesel; Humidity; Oxidative stability; DSC
Restricted access

Abstract  

The influence of drying processes in the biodiesel oxidation was investigated by means of the oxidative induction time obtained from differential scanning calorimetry data. For this purpose, corn biodiesel was dried by different methods including: chemical (anhydrous sodium sulfate) and thermal (induction heating, heating under vacuum and with microwave irradiation). The drying efficiency was evaluated by monitoring IR absorption in the 3,500–3,200 cm−1 range and by the AOCS Bc 2-49 method. In general, the oxidative induction times increased inversely to the heating degree, except that of microwave irradiation, which was selective to water evaporation and caused low impact over the unsaturation of biodiesel. The DSC technique was shown to be a powerful tool to evaluate with high level of differentiation the influence of the drying process on the oxidative stability of biodiesel.

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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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