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Solid alkali catalyst was prepared with CH3COONa immobilized on alumina by impregnation method. Represented with SEM, IR and BET techniques, the catalysts indicated relatively uniform particle size distribution with perfect particle surface area, pore volume and pore size. Soybean oil was catalyzed to investigate the catalysis characteristics. The results showed that the maximum conversion rate of...
Continuous use of petroleum sourced fuels is now widely recognized as unsustainable because of depleting supplies and contribution of these fuels to the accumulation of carbon dioxide in the environment. Renewable, carbon neutral, transport fuels are necessary for environmental and economic sustainability. Raw and spent vegetable oils have attracted attention as a potential renewable resource for...
Transesterification of canola oil with methanol was investigated under a heterogeneous catalysts system. Various γ-Al2O3-, hydrotalcite-, SiO2-supported Na, Ca oxides prepared via an impregnation method were applied as solid catalyst. The influence of supports (γ-Al2O3, hydrotalcite, SiO2) structure on the activity and adsorption behavior of Na, Ca-based catalysts for transesterification was comparatively...
Biodiesel, an alternative diesel fuel derived from vegetable oil, animal fat, or waste vegetable oil (WVO), is obtained in this work by reacting waste vegetable soybean oil using oil shale ash as a heterogeneous catalyst in addition to two alcohols ethylene glycol and ethanol. Results have indicated that high biodiesel yield is obtained when using ethylene glycol at high temperature, while the yield...
High consumption of chicken in Indonesia leads to a considerable amount of chicken skin as a waste. The utilization of this chicken skins as possible biodiesel feedstock was therefore investigated. The transestrification between this chicken fats and methanol was conducted using calcium oxide as solid catalyst. The variables affecting the yield of biodiesel during transesterification, such molar ratio...
Biodiesel is one of alternative energies. Biodiesel can be made from coconut oil and is referred to as cocodiesel. This research studies the optimum condition of cocodiesel production by methanolysis reaction between coconut oil and methanol using heterogen catalyst of calcium carbonate (CaCO3) is calcined for 1.5 hours at 900°C. In order to get optimum condition, several experimental parameters are...
Fatty acid methyl esters (FAME) are produced by transesterification of vegetable oil with methanol usually in presence of an alkaline catalyst. The purpose of this work is to compare the performance of heterogeneous (CaO, MgO, Ba(OH)2, Li/CaO, Zeolite) and homogeneous (KOH) catalyst for the transesterification of vegetable oil. The effect of stirring speed and addition of ethanol with methanol on...
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