ABSTRACT
Wood wastes residues collected at sawmill along Benin Ilesha
express way in Akure Ondo State (Ceiba pentandra, Melicia excelsa and
mixture of Ceiba pentandra, and Melicia excelsa) ratio 50:50 were
converted to liquid bio-fuel via slow pyrolysis process at three
different temperatures, 450° C, 550° C and 650° C. The physical
characteristics of the liquid bio-fuel viz; oil yield, volume, density,
viscosity, pH were determined. The proximate values of the feedstocks
(volatile matter, ash content and fixed carbon) were determined. The
pyrolytic oil yield for Ceiba pentandra, Melicia excelsa and mixture of
Ceiba pentandra, Melicia excelsa ranged from 17.67 % to 46.72 %, 16.33 %
to 43.73 % and 16.72 % to 43.96 % respectively. The Mean while,
increase in temperature indicates increase in oil yield and decrease in
percentage char. The mean value for the charcoal produced ranged from
32.01 % to 47.17 % with Ceiba pentandra species having the highest
charcoal produced at 450° C. The highest viscosity (87.08±2.88) was
recorded for Melicia excelsa at 650° C. The heating value of the
feedstoks used in this study ranged from 3305.59±67 to 33173±34.36 KJ/kg
which indicate high heating value as good combustion properties that
can guarantee safe handling of the Pyrolytic liquid produced from the
feedstocks.