Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.26/1297
Título: Transesterification of rapeseed oil with methanol in the presence of various co-solvents
Autor: Pardal, Ana Cristina
Encinar, J.M.
González, J.F.
Martínez, G.
Palavras-chave: Transesterification
Rapeseed oil
Co-solvents
Data: Nov-2010
Resumo: 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 transesterification reaction, such as catalyst content, methanol:oil molar ratio, methanol:cosolvent molar ratio, co-solvent type, catalysts type, agitation rate and reaction temperature were investigated. The process was monitored by gas chromatography, determining the concentration of the methyl esters. Biodiesel was characterized according to ISO norms. Among the studied co-solvents, the DEE and tBME take to the best results, however diIPE, diBE and acetone hardly improve the obtained results using only methanol. Within the range of studied variability, the rest of variables do not exercise a very significant influence. The best results are obtained with 0.7 % of KOH, a molar ratio methanol/oil of 9:1, a molar ratio co-solvent/methanol 1:1, an agitation rate of 700 rpm and a temperature of 30 ºC
Descrição: Comunicação apresentada no «Third International Symposium on Energy from Biomass and Waste», Venice(Italy), Novembro 2010
Peer review: yes
URI: http://hdl.handle.net/10400.26/1297
Versão do Editor: http://www.iiasa.ac.at/Research/FOR/downloads/Kraxner/CD%20Venice%20Symposion%202010_Proceedings/data/data/files/177.pdf
Aparece nas colecções:RDIPB - D-TCA - Comunicações com Peer Review

Ficheiros deste registo:
Ficheiro Descrição TamanhoFormato 
Transesterification of rapeseed oil with methanol in the presence of various co-solvents.pdf574,65 kBAdobe PDFVer/Abrir


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.