Karakteristik Bio-Oil Tiga Jenis Cabang Kayu Mangrove

Abstract

Mangrove wood is known to have a high calorific value; therefore, it has traditionally been used as a source of firewood by our ancestors. Continuous exploitation has caused mangrove forests to degrade and their ecological functions to diminish. For this reason, this study utilizes only the branch parts of mangrove wood to ensure that mangrove forests remain preserved and sustainable. Furthermore, this research focuses on diversifying energy sources. Previous studies have produced briquettes, pellets, charcoal, and charcoal briquettes from mangrove wood branches. A byproduct of charcoal conversion is bio-oil, which can also be used as an energy source. In this study, three types of mangroves, namely black mangrove (Rhizophora mucronata), tancang (Bruguiera gymnorrhiza), and mata buaya (Bruguiera sexangula), were pyrolyzed to produce charcoal and bio oil. The bio-oil was characterized to evaluate its contents and subsequently recommend potential uses. Characterization results included yield, viscosity, pH, and chemical properties using GC-MS analysis. The results showed that R. mucronata had the highest viscosity of 1.9 and contained the most variations of compounds, with 12 chemical components. B. gymnorrhiza had the highest pH of 3.94 and contained 8 chemical components. B. sexangula had a viscosity of 1.9 but only contained 2 compound components. Further research should be conducted for the feasibility as energy source.