The characteristics of bio-oil hydrothermal pyrolysis empty fruit bunches based on powder size and hydrogen gas pressure

Abstract

Bio oil is the result of pyrolysis of biomass raw materials in the form of dark-colored liquids containing major chemical compounds such as benzene compounds, aromatic compounds, aliphatic, and other organic compounds. In the future, bio-oil is expected to be a substitute for fossil fuels as they are more environmentally friendly. Empty fruit bunches (EFB) from oil palm are one type of biomass that can be used as bio-oil products. The elements of pyrolysis that were analyzed were High Heating Value (MJ/kg), pH, viscosity, density and analysis of the components of hydrocarbon compounds formed using GCMS analysis. The results showed that HHV value 35.66 MJ / - 39.09 MJ/kg, the pH value of bio-oil was somewhat similar to normal pH 4 - 6, and viscosity was 4 - 9 cp. The results of GCMS analysis showed that the content of the optimal percentage of hydrocarbon compounds was treated with 40 mesh powders with a hydrogen pressure of 15 bar. 19 types of hydrocarbon compounds were found with a total percentage of 13.79 %.