00000ctm a22000004i 4500 UP-99796217611965107 Buklod 20160303143556.0 m |o d | ta 160303s2016 xx d r |||| u| (iLib)UPD-00254210874 DENG rda eng DMLUC LG 995 2016 E65 M67 Mora, Joy Marie R. author. NaOH/pumice and LiOH/pumice as heterogeneous solid base catalysts for biodiesel production from soybean oil an optimization study thesis by Joy Marie R. Mora ; Mark Daniel G. De Luna, adviser ; Tsair-Wang Chung, co-adviser. Quezon City College of Engineering, University of the Philippines Diliman 2016. xii, 133 leaves illustrations 28 cm text rdacontent unmediated rdamedia volume rdacarrier Thesis (M.S. Energy Engineering)--University of the Philippines Diliman January 2016. Available to the general public. Transesterification reaction of soybean oil with methanol was carried out to produce fatty acid methyl esters (FAME) using calcined alkali metal (Na and Li) supported by pumice silica as solid base catalyst.Pumice silica catalyst was activated by loading alkali metal ions to its surface via an ion-exchange method.Response surface methodology (RSM) in combination with Box-Behnken design (BBD) was used to methanol to oil molar ratio,reaction time,and catalyst concentration.Using the optimized sets of parameters,FAME yields using sodium and lithium silicate catalysts were 98.80% and 98.77% respectively.A pseudo-first order kinetic equation was applied characterized by several techniques such as X-ray diffraction (XRD),Fourier transform electron microscopy(SEM).In addition,the reusability of the catalyst was successfully tested in two subsequent cycles. Transesterification. Biodiesel fuels. Pumice. Heterogeneous catalysis. Alkali metals. De Luna, Mark Daniel G. adviser. Chung, Tsair-Wang co-adviser. FI UP UPD DENG-II LG 995 2016 E65 M67 Thesis