Transesterification of sunflower oil catalyzed by flyash-based solid catalysts

Flyash-based base catalyst was used in the transesterification of sunflower oil with methanol to methyl esters in a heterogeneous manner. Catalyst preparation variables such as, the KNO 3 loading amount and calcination temperature were optimized. The catalysts were characterized by powder XRD. The c...

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Bibliographic Details
Published in:Fuel (Guildford) 2009-09, Vol.88 (9), p.1773-1778
Main Authors: Kotwal, M.S., Niphadkar, P.S., Deshpande, S.S., Bokade, V.V., Joshi, P.N.
Format: Article
Language:English
Subjects:
Applied sciences
Biomass
Energy
Exact sciences and technology
Flyash
Heterogeneous catalyst
Methyl ester
Natural energy
Sunflower oil
Transesterification
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Summary:Flyash-based base catalyst was used in the transesterification of sunflower oil with methanol to methyl esters in a heterogeneous manner. Catalyst preparation variables such as, the KNO 3 loading amount and calcination temperature were optimized. The catalysts were characterized by powder XRD. The catalyst prepared by loading of 5 wt.% KNO 3 on flyash followed by its calcination at 773 K has exhibited maximum oil conversion (87.5 wt.%). The influence of various reaction parameters such as % catalyst loading, methanol to oil molar ratio, reaction time, temperature, reusability of the catalyst on the catalytic activity was investigated. K 2O derived from KNO 3 might be an essential component in the catalyst for its efficiency.
ISSN:0016-2361
1873-7153
DOI:10.1016/j.fuel.2009.04.004