Valorisation of corncob residues to functionalised porous carbonaceous materials for the simultaneous esterification/transesterification of waste oils

Functionalised porous carbonaceous materials prepared from the controlled pyrolysis of corncobs were found to provide excellent activities in the simultaneous esterification/transesterification of highly acidic waste oils to biodiesel-like mixtures. Materials carbonised at 600 [degree]C (mostly micr...

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Bibliographic Details
Published in:Green chemistry : an international journal and green chemistry resource : GC 2011-01, Vol.13 (11), p.3162-3167
Main Authors: ARANCON, Rick Arneil, BARROS, Higinio R, BALU, Alina M, VARGAS, Carolina, LUQUE, Rafael
Format: Article
Language:English
Subjects:
Agriculture, rearing and food industries wastes
Applied sciences
Biofuel production
Biological and medical sciences
Biotechnology
Carbonaceous materials
Chemistry
Colloidal state and disperse state
Energy
Esterification
Esters
Exact sciences and technology
Fatty acids
Fundamental and applied biological sciences. Psychology
General and physical chemistry
Industrial applications and implications. Economical aspects
Lipids
Optimization
Organic chemistry
Pollution
Porous materials
Preparations and properties
Pyrolysis
Transesterification
Wastes
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Summary:Functionalised porous carbonaceous materials prepared from the controlled pyrolysis of corncobs were found to provide excellent activities in the simultaneous esterification/transesterification of highly acidic waste oils to biodiesel-like mixtures. Materials carbonised at 600 [degree]C (mostly microporous) containing -SO3H groups (ca. 1 wt% S, 0.16 mmol g-1 -SO3H) exhibited the optimum yields (95%) to fatty acid methyl esters after 6 h of reaction.
ISSN:1463-9262
1463-9270
DOI:10.1039/c1gc15908a