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Soybean oil transesterification by the use of a microwave flow system
Encinar, J.; González, J.; Martínez, G.The production of methyl esters from soybean transesterification by the use of a microwave flow system has been investigated. A household microwave was modified as a biodiesel reactor for continuous transesterification. The effects of temperature at the exit point (50–110 °C), the methanol/oil molar ratio (3:1, 6:1, 9:1 and 12:1) and the catalyst concentration (0.5%, 1.0% and 1.5% in weight of KOH) were evaluat...
Transesterification of vegetables oil in subcritical methanol conditions
Pardal, Ana Cristina; M. Encinar, J.; F. González, J.; Martínez, G.Comunicação apresentada na 18th European Biomass Conference and Exhibition, Lyon (França), Maio de 2010 ; In this study, transesterification of rapeseed oil using subcritical methanol and potassium hydroxide as catalyst was studied. The variables affecting the methyl ester yield during the transesterification reaction, such as the catalyst content, reaction temperature, reaction time and the molar ratio of alc...
Transesterification of rapeseed oil with methanol in the presence of various co...
Pardal, Ana Cristina; Encinar, J.M.; González, J.F.; Martínez, G.Comunicação apresentada no «Third International Symposium on Energy from Biomass and Waste», Venice(Italy), Novembro 2010 ; In this study, transesterification of rapeseed oil using various co-solvents(diethyl ether (DEE), dibutyl ether (diBE), tert-butyl methyl ether (tBME), diisopropyl ether (diIPE), tetrahydrofuran (THF), and acetone) was studied. The variables affecting the ester yield during transesterific...
Transesterification of vegetables oil in subcritical methanol conditions
Pardal, Ana Cristina; M. Encinar, J.; F. González, J.; Martínez, G.Comunicação apresentada na 18th European Biomass Conference and Exhibition, Lyon (França), Maio de 2010 ; In this study, transesterification of rapeseed oil using subcritical methanol and potassium hydroxide as catalyst was studied. The variables affecting the methyl ester yield during the transesterification reaction, such as the catalyst content, reaction temperature, reaction time and the molar ratio of alc...
Transesterification of rapeseed oil with methanol in the presence of various co...
Pardal, Ana Cristina; Encinar, J.M.; González, J.F.; Martínez, G.Comunicação apresentada no «Third International Symposium on Energy from Biomass and Waste», Venice(Italy), Novembro 2010 ; In this study, transesterification of rapeseed oil using various co-solvents(diethyl ether (DEE), dibutyl ether (diBE), tert-butyl methyl ether (tBME), diisopropyl ether (diIPE), tetrahydrofuran (THF), and acetone) was studied. The variables affecting the ester yield during transesterific...
Phytoplankton community of a polymictic reservoir, La Plata River basin, Uruguay
PÉREZ,M. C.; BONILLA,S.; MARTÍNEZ,G.This paper deals with the analysis of phytoplankton composition and abundance from four sampling stations at the polymictic system, Rincón del Bonete water reservoir in Uruguay. Sampling data were obtained in 4 seasonal periods between February and November 1993. A hundred and twenty-four taxa were identified, where Aulacoseira granulata (Ehrenb.) Simon., A. granulata var. angustissima (Muller) Simon., A. granu...
Has time come for the genetic management of sea bass?
Volckaert, F.; Alvarez, M. C.; Argenton, F.; Bonhomme, F.; Chatain, B.; Colombo, L.; Castilho, Rita; Chevassus, B.; Gorshkova, G.; Kohler, M.Since 1980 the industrial production of European sea bass has risen considerably up to at least 18,000 MT in 1996 ( see also Josupeit, Aquaculture Europe 20(2):-12, 1995). This growth is remarkable since few were able to culture the species in the seventies. Several "classical" stages of development can be observed; they are typical of a rapidly expanding bioindustry.
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