Rheology and MT-DSC studies of the flow properties of ethyl and methyl babassu biodiesel and blends

Bicudo, Tatiana de Campos; Santos, N. A.; Rosenhaim, R.; Dantas, M. B.; Cavalcanti, E. H. S.; Barro, A. K.; Santos, I. M. G.; Souza, A. G.

Rheology and MT-DSC studies of the flow properties of ethyl and methyl babassu biodiesel and blends

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dc.contributor.author	Bicudo, Tatiana de Campos
dc.contributor.author	Santos, N. A.
dc.contributor.author	Rosenhaim, R.
dc.contributor.author	Dantas, M. B.
dc.contributor.author	Cavalcanti, E. H. S.
dc.contributor.author	Barro, A. K.
dc.contributor.author	Santos, I. M. G.
dc.contributor.author	Souza, A. G.
dc.date.accessioned	2020-10-09T18:59:02Z
dc.date.available	2020-10-09T18:59:02Z
dc.date.issued	2011-02-27
dc.description.resumo	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	pt_BR
dc.identifier.citation	Santos, N. A. ; ROSENHAIM, R. ; DANTAS, M. B. ; BICUDO, T.C. ; Cavalcanti, E. H. S. ; Barro, A. K. ; SANTOS, I. M. G. ; SOUZA, A. G. Rheology and MT-DSC studies of the flow properties of ethyl and methyl babassu biodiesel and blends. Journal of Thermal Analysis and Calorimetry, p. 1, 2011. Disponível em: https://link.springer.com/article/10.1007%2Fs10973-011-1394-z. Acesso em: 08 set. 2020. https://doi.org/10.1007/s10973-011-1394-z	pt_BR
dc.identifier.doi	10.1007/s10973-011-1394-z
dc.identifier.issn	1572-8943
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/30358
dc.language	en	pt_BR
dc.publisher	Springer	pt_BR
dc.rights	Attribution-NonCommercial 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc/3.0/br/	*
dc.subject	Biodiesel	pt_BR
dc.subject	Babassu	pt_BR
dc.subject	Viscosity	pt_BR
dc.subject	CFPP	pt_BR
dc.subject	MT-DSC	pt_BR
dc.title	Rheology and MT-DSC studies of the flow properties of ethyl and methyl babassu biodiesel and blends	pt_BR
dc.type	article	pt_BR