Deoxygenation of palmitic acid to diesel-like hydrocarbons via NI/SBA-15
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Date
2017-06
Authors
Nur Aziah Binti Saadon
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Abstract
The solventless deoxygenation of palmitic acid to diesel-like hydrocarbons using nickel functionalized SBA-15 catalyst was investigated. Various nickel functionalized SBA-15 catalyst were synthesized by varying the nickel loading from 5 to 10 wt% at the same preparation conditions. The nickel functionalized SBa-15 catalysts were characterized in terms of its morphology and chemical compositions by means of scanning electron microscope (SEM) and energy dispersive X-ray (EDX) respectively. Activity test was performed on the nickel functionalized SBA-15 catalysts for solventless deoxygenation reaction of palmitic acid in a semi batch reactor and was confirmed as a promising catalyst. In the study on the effects of the operating conditions on the deoxygenation reaction via nickel functionalized SBA-15 catalysts, it was found that palmitic acid conversion increased with increasing temperature, reaction time and catalyst loading. Furthermore, yield of 1-pentadecene and n- pentadecane increased with increasing reaction time and catalyst loading. However, the selectivities of both desired products decreased with increasing temperature, reaction time and catalyst loading. The yield and selectivity of n-pentadecane is higher than 1-pentadecene regardless of the operating conditions.