Abstract:
Bio-oil is a product of pyrolysis of biomass. A study that stem palm biomass conversion to bio-oil by pyrolysis process using metal catalysts with Mo content of developing of 0%, 0.5%, 1%, and 1.5% w/w to NZA. In this research, testing physical properties (density, viscosity, acid number, calorific value and flash point), the analysis of the chemical content of bio-oil, and the developing of the influence of metal Mo/NZA to yield bio-oil produced. Biomass palm midrib 50 grams with a size -40 +60 mesh, silinap 500 ml, and the catalyst Mo/NZA 1.5 grams entered into a slurry reactor, and pyrolysis process performed on the operating conditions of temperature 320 oC and stirring speed of 300 rpm with a flow of nitrogen gas (N2) as an inert gas. The results showed that the optimum yield obtained at the level of developing of a metal catalyst, 1.5% Mo to NZA is equal to 54.7%. The test results obtained by the physical properties of density 0.918 g / ml, 3.091 cSt viscosity, acid number of 55.14 g NaOH / g sample, the heating value of 42.401 MJ / kg, and the flash point is 61 ºC. Results of analysis of chemical constituents by GC-MS, obtained the dominant chemical components of bio-oil methyl acetate is 3.46%; Acetic acid 57.60%; Furancarboxaldehyde 15.13%; 4-pentyn-2-ol 4.46%; Phenol 15.36%. The results obtained have characteristics approaching the characteristics of standard fuel oil and bio-oil.
