Pirolisis Limbah Pelepah Kelapa Sawit Menjadi Bio-oil Menggunakan Katalis Lempung Cengar

Abstract

The world demand of fossil fuel have trend increasing by time. On the other hand, the availability of conventional petroleum fuels diminishing due to its non-renewable. Therefore, it is necessary to develop a new alternative fuel that can be renewed, one of the solution is the processing of biomass into bio-oil. Bio-oil is a result of the pyrolysis of biomass. Availability of abundant palm midrib waste is converted into bio-oil by pyrolysis method using clay catalysts of Cengar. The purpose of this study was to determine the performance of the catalyst to produce bio-oil, characterize the density, viscosity, acid number, and flash point of bio-oil that produced, as well as analyze the chemical components of bio-oil by GC-MS method. Pyrolysis of palm midrib with clay catalyst from Cengar in the slurry reactor has been done by feeding 50 grams of palm midrib with the size -40 +60 mesh, silinap 500 ml, variation in levels of catalyst 0%, 1%, 2%, 3%, 4%, and 5% w/w of the feedstock, whilist stirring speed is set to 300 rpm, temperature of 320oC, and the process was run for 120 minutes. The results showed that the optimum yield obtained on 1% clay catalyst, amounting to 72%. The test results obtained by the physical properties of density 1,011 g/ml, 10,26 cSt viscosity, acid number of 14,25 gr NaOH/gr sample. The result of chemical analysis by GCMS, obtained the dominant chemical components in bio-oil were Acetic acid and Phenol.