Pirolisis Kayu Akasia Menjadi Bio-Oil Menggunakan Katalis NiMo/NZA Dengan Variasi Jumlah Pengembanan Logam Dan Rasio Berat Katalis Terhadap Biomassa

Abstract

The purpose of this research is to determine the effect of the percentage of NiMo and ratio of NiMo/NZA catalyst to the yield of bio-oil in the synthesis of bio-oil from acacia wood using pyrolysis methode. The process was carried out using 50 gram, of acacia wood, 500 ml silinap and NiMo/NZA catalyst with various variations of the percentage of NiMo metal 0%, 1%, 2%, 3% and the variation ratio of NiMo/NZA catalyst 3%, 6%, 12% respectively of the biomass having a stirring speed of 300 rpm and a temperature of 320 ºC for 120 minutes. From the result, the highest yield (69.41%) was obtained of NiMo ratio 2% and the catalyst 3%. The physical properties at the bio-oil result obtained density 0.938 gr/ml, viscosity 1.919 cSt, acid number 87.593 mg NaOH/gr sample, and the flash point 55 oC respectively. From analysis by the GC-MS, the dominant components were 2-Pentene,2,4,4-Trimethyl (18.50%), Pentane,2,2,4,4-Tetramethyl- (5.64%), 1-Pentene,2,4,4-Trimethyl- (10.31%), 2-Pentene,2,3, 4-Trimethyl- (2.43%) and Cyclohexanone,3-(3,3-Dimethylbutyl) (8.08%) were found.
Keywords: Biomass, Bio-oil, NiMo/NZA, acacia wood, Pyrolysis