Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 106: Issue 2
Rheology and MT-DSC studies of the flow properties of ethyl and methyl babassu biodiesel and blends
Authors:
N. A. Santos LACOM, Departamento de Química, CCEN, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58059-900, Brazil

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

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

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T. C. Bicudo Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil

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E. H. S. Cavalcanti Divisão de Corrosão e Degradação, Instituto Nacional de Tecnologia, Rio de Janeiro, RJ, Brazil

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A. K. Barro Universidade Federal do Maranhao, São Luiz, MA. ANP—Agência Nacional do Petróleo, Gás Natural e Biocombustíveis, Av. Rio Branco, 65/21° Andar, Rio de Janeiro, RJ, 20090-004, Brazil

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I. M. G. Santos LACOM, Departamento de Química, CCEN, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58059-900, Brazil

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

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Pages:
501–506
Online Publication Date:
27 Feb 2011
Publication Date:
01 Nov 2011
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-011-1394-z
Keywords:
Biodiesel; Babassu; Viscosity; CFPP; MT-DSC
Restricted access

Abstract

Biodiesel is an increasingly attractive alternative to diesel fuel. The main component of Babassu biodiesel is lauric acid (C12:0), which is a saturated fatty acid with a high melting point. Controlling flow properties, such as viscosity and the cold filter plugging point, is critical because viscosity affects atomization, and crystal formation resulting from decreases in temperature can negatively affect engine starting and performance. To evaluate its flow characteristics more fully, the rheological properties of babassu biodiesel were analyzed, taking into account variations in temperature. The crystallization temperature was determined by modulated temperature differential scanning calorimetry (MT-DSC). The curve of biodiesel viscosity as a function of the biodiesel refrigeration temperature contained an inflection point (corresponding to a steep increase in viscosity) that was coincident with both the transition from a Newtonian-type flow to a pseudoplastic-type flow and the crystallization temperature obtained by MT-DSC, indicating that the appearance of crystals in the biodiesel increased its viscosity. The rheological properties of fatty acid methyl and ethyl mixtures (FAME and FAEE) with metropolitan diesel were also evaluated; a higher FAME percentage reduced viscosity in blends up to B100.

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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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