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Effect of Pyrolysis Temperature and Biomass Composition on Bio-Oil Characteristics

Afrah Bazlina Dawami, Riady M. Ihsan, Arsadha Juliet Patricia, Rimadhina Rizky, Cundari Lia, Izzah Rosidah Zaatil

Ecological Engineering & Environmental Technology

2024

Vol. 25, iss. 3

264--274

Pyrolysis is a method of producing oils from the raw materials of biomass by decomposing the thermochemical of organic materials at a given temperature. Free variables used in this research include pyrolysis temperaturę and biomass composition. The temperature variation of pyrolysis consists of three ranges: 100–200; 200–300; and 300–350 °C. Meanwhile, the composition of biomass consists of five combinations of waste rubber and coconut shells ranging from 0% coconut shell and 100% rubber wood to 80% coconut shell and 20% rubber shell. The physical characteristics of bio-oil analyzed include volume, pH, density, viscosity, and GC-MS analysis to determine its chemical characteristics. Research results showed that the pyrolysis temperature and composition of the biomass affected the characteristics of the bio-oil. The results of GC-MS analysis on bio-oil at 300–350 0C showed that bio-oil with a biomass composition of 80% coconut shells and 20% rubber wood yielded 50.19% phenol. The percentage of phenol is greater than that found in bio-oil with 20% coconut shells and 80% rubber wood, which is 18.78% phenol.