Response surface modeling of the interesterification of crude and refined corn oil with methanol

Fernandes, João F.; Ferreira-Dias, S.

Publication

Response surface modeling of the interesterification of crude and refined corn oil with methanol

2001Conference object

authorProfile.affiliation	Instituto Politécnico de Santarém_Escola Superior Agrária	pt_PT
dc.contributor.author	Fernandes, João F.
dc.contributor.author	Ferreira-Dias, S.
dc.date.accessioned	2024-08-29T10:03:29Z
dc.date.available	2024-08-29T10:03:29Z
dc.date.issued	2001
dc.description.abstract	In this study, modeling of the interesterification of crude and refined corn oils with methanol was attempted via the response surface methodology (RSM). For both oils, a central composite rotatable design was used to investigate the effect of the amount of alkali catalyst (sodium methoxide: 0.12 to 2.48%, w/w), temperature (26 to 94 C) and molar ratio methanol/oil (0.96 to 11.0) used, on the production of fatty acid methyl esters (FAME). These esters may be used for biodiesel purposes. Under some of the conditions tested, the equilibrium was attained after a 30-min reaction for both oils. When crude corn oil was used, the production of FAME varied from 0% (corresponding to the lowest amount of catalyst used) to 95%. With respect to the alcoholysis of refined corn oil, the conversion to esters was from 27 to 95%. The production of FAME was significantly affected by the amount of catalyst and the temperature used. A less significant effect of the molar ratio of methanol/oil on the reaction was found. Both for crude and refined oils, the yield of FAME was fitted to second-order models represented by convex surfaces with stationary points (optima) inside the experimental domain. According to the models, the predicted maximum FAME production (95%) is attained after 30 min at 50degreesC when 1.7 or 2.0% (w/w) of sodium methoxide is used, respectively, on the interesterification of crude or refined oils.	pt_PT
dc.description.version	info:eu-repo/semantics/publishedVersion	pt_PT
dc.identifier.citation	Fernandes, J.F. & Ferreira-Dias, S. (2001). Response surface modeling of the interesterification of crude and refined corn oil with methanol. Proceedings of the World Conference on Oilseed Processing and Utilization, Cancun, Nov. 12-17 2000, pp. 192-196.	pt_PT
dc.identifier.uri	http://hdl.handle.net/10400.15/4940
dc.language.iso	eng	pt_PT
dc.publisher	AOCS Press	pt_PT
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	pt_PT
dc.title	Response surface modeling of the interesterification of crude and refined corn oil with methanol	pt_PT
dc.type	conference object
dspace.entity.type	Publication
oaire.citation.conferencePlace	Cancun	pt_PT
oaire.citation.endPage	196	pt_PT
oaire.citation.startPage	192	pt_PT
oaire.citation.title	World Conference on Oilseed Processing and Utilization	pt_PT
rcaap.rights	restrictedAccess	pt_PT
rcaap.type	conferenceObject	pt_PT