Synthesis of fatty acid methyl esters via direct transesterification with methanol/carbon dioxide mixtures from spent coffee grounds feedstock

Calixto, Filipe and Fernandes, Joao and Couto, Ricardo and Hernandez, Elvis J. and Najdanovic-Visak, Vesna and Simoes, Pedro C. and Najdanovic-Visak, Vesna (2011) Synthesis of fatty acid methyl esters via direct transesterification with methanol/carbon dioxide mixtures from spent coffee grounds feedstock. Green Chemistry, 13 (5). pp. 1196-1202. ISSN 1463-9262

Full text not available from this repository.

Abstract

The feasibility of in situ extraction and transesterification of spent coffee ground oil into fatty acid methyl esters with supercritical methanol has been investigated in the temperature range 473-603 K, and in the pressure range 10.0-30.0 MPa. At 30.0 MPa and 603 K, a fatty acid methyl esters (FAME) yield of 84.9% was obtained. Carbon dioxide was added to methanol with the aim of reducing the operating temperature and pressure. It was demonstrated that at a reaction temperature of 573 K, pressure of 10.0 MPa and a CO(2)/MeOH molar ratio of 0.11, a FAME yield of 93.4% was obtained.

Item Type:
Journal Article
Journal or Publication Title:
Green Chemistry
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2300/2304
Subjects:
?? supercritical methanolfuelphase-equilibriavapor-liquid-equilibriacosolventsvegetable-oilsrapeseed oilbiodiesel productionsoybean oiltriglyceridesenvironmental chemistrypollution ??
ID Code:
63076
Deposited By:
Deposited On:
22 Mar 2013 09:24
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2024 13:42