Abstract
The study aims to investigate the effect of reaction temperature variations on the catalytic hydrocracking process of kapok seed oil to produce biofuel using the CuMo/HZSM-5. The CuMo/HZSM-5 used has a CuMo loading of 5% on the mass of HZSM-5 as support. The catalyst is prepared through the impregnation method, Incipient Wetness Impregnation. Characterization of catalysts was analysed by X-ray Diffraction (XRD), BET, and EDX. Based on the results of EDX analysis denoted that Cu and Mo metals can be impregnated into the HZSM-5. This was indicated by detecting 1.45 wt% Cu metal and 7.46 wt% Mo metal. The catalytic hydrocracking process converted kapok seed oil into biofuel by adding hydrogen gas using a pressurized reactor equipped with a stirrer. This process occured at temperatures of 350-400oC, 10-30 bar for 2 hours. Parameters used to investigate biofuel production, including the composition of hydrocarbons and yield of gasoline/kerosene/gas-oil range alkane. The gas chromatography-mass spectrometry (GC-MS) method analysed the liquid biofuel products. The best performance of CuMo/HZSM-5 was bio-kerosene (2.82%) and bio-gasoil (17.11%) for 2 hours at 400oC. The selectivity of liquid hydrocarbon products was n-paraffin (50.12%) and cycloparaffin (32.57%)
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