4. Conclusion
The bio oil yield from shell increased with pyrolysis temperature. The condition of N2 flow 50 ml/min
made the optimum laminar flow that effect to completely volatile cracking to be condensable gas. It
seems that particle size 2.18 mm could supplied the higher amount of bio oil than 1.13 mm. The highest
bio oil yield from shell was showed as 38.22 at the condition of temperature of 450 C, N2 flow on 50
ml/min and particle size of 2.18 mm. If the bio oil yield from residue was lower than from shell in any
conditions, but it had the better quality fuel than bio oil from shell. The highest bio oil yield from residue
was showed as 34.35 at the condition of temperature of 400 C and N2 flow on 50 ml/min.
ACKNOWLEDGMENT
Office of the higher education commission: Higher Education Research Promotion (HERP) and Center
of excellence on petrochemical and materials technology, Chulalongkorn University.