INVESTIGADORES
AGUIRREZABAL Luis Adolfo Nazareno
artículos
Título:
Variability in sunflower oil quality for biodiesel production: a simulation study.
Autor/es:
PEREYRA IRUJO, G.; IZQUIERDO, N.; COVI, M.; NOLASCO, S.; QUIROZ, F.; LUIS ADOLFO NAZARENO AGUIRREZABAL
Revista:
Biomass and Bioenergy
Editorial:
elsevier
Referencias:
Año: 2009 vol. 33 p. 459 - 468
ISSN:
0961-9534
Resumen:
Biodiesel is an alternative fuel made from vegetable oils or animal fats. The fatty acid
composition of the feedstock, which varies among and within species, is the main determinant
of biodiesel quality. In this work we analyze the variability in biodiesel quality
(density, kinematic viscosity, heating value, cetane number and iodine value) obtained
from sunflower oil, by means of a validated crop model that predicts the fatty acid
composition of one high-oleic, and three traditional (high-linoleic) sunflower hybrids. The
model was run with a 10-year average weather data from 56 weather stations in Argentina,
and simulation results were compared to the biodiesel standards of Argentina, USA and
Europe. We show that biodiesel produced from sunflower oil does not have one fixed
quality, but different qualities depending on weather conditions and agricultural practices,
and that intraspecific variation in biodiesel quality can be larger than interspecific differences.
Our results suggest that (a) sunflower oil from high-oleic hybrids is suitable for
biodiesel production (within limits of all analyzed standards), regardless of growing
conditions and (b) sunflower oil from traditional hybrids is suitable for biodiesel production
under the standards of Argentina and USA, while only certain hybrids grown in warm
regions (e.g., Northern Argentina, Southern USA, China, India, Pakistan) are suitable for
biodiesel production according to the European standard.