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Some physical properties and oxidative stability of biodiesel produced from oil seed crops
Fatai Abiola Lateef,Okechukwu Dominic Onukwuli,Uche Chukwu Okoro,Paul Madus Ejikeme,Paul Jere 한국화학공학회 2014 Korean Journal of Chemical Engineering Vol.31 No.5
Biodiesel is a cleaner burning fuel than petrodiesel and a suitable replacement in diesel engine. It is producedfrom renewable sources such as vegetable oils or animal fats. Biodiesel fuel was prepared from castor (CSO), palmkernel (PKO) and groundnut (GNO) oils through alkali transesterification reaction. The biodiesel produced was characterizedas alternative diesel fuel. Fuel properties such as specific gravity, viscosity, calorific (combustion) value, TheCSO, PKO and GNO were measured to evaluate the storage/oxidative stability of the oils to compare them with commercialpetrodiesel. The biodiesel produced had good fuel properties with respect to ASTM D 6751 and EN 14214specification standards, except that the kinematic viscosity of castor oil biodiesel was too low. The viscosity of castoroil biodiesel at different temperatures was in the range of 4.12-7.21mm2/s. However, promising results which conformedto the above specification standards were realized when castor oil biodiesel was blended with commercial petrodiesel. At 28 oC the specific gravity recorded for CSO, PKO and GNO biodiesel was higher than the values obtained forpetrodiesel. Commercial petrodiesel had the highest oxidative stability than biodiesel produced from CSO, PKO andGNO oils.