Pyrolysis of Sugarcane Bagasse for Bio-Oil Production

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T. S. Mogaji
A. Akinsade
M. A. Akintunde

Abstract

One potential technique for alleviating environmental concerns from the release of green house gas (GHG) emission from fossil fuel burning is through conversion of biomass residue to other energy products such as bio-oil. This study focused on pyrolysis of sugarcane bagasse for bio-oil production.The pyrolysis of Sugarcane barggase (SB) as waste from raw sugarcane was carried out in a 35.3 litres capacity fixed bed reactor. The fixed bed reactor has overall dimensions of (238 mm diameter., 794 mm height) with handling capacity of 3 kg of feedstock per batch. The raw sugarcane collected from a local farm in Idanre metropolis was crushed, squeezed to extract the juice and sundried to lessen the moisture content. The dried sample of size < 1 mm was fed into the reactor at room temperature of 25oC and heated to a temperature of 500oC. The product of bio-oil was collected and assayed for their compositions, contents and characteristics. The chemical properties of the produced bio-oil were compared with literature values of bio-oil derived from other biomass wastes. The pyrolytic oils from the SB wastes are characterized by heating value (HV) of 17.33 MJkg-1, negligible amount of Sulphur and Nitrogen (0.88 and 0.01 % wt respectively) which resulted in lower emission of SO2 and NO2 consequently slighter environmental impact. The finding indicates that the pyrolytic oil from SB would be a suitable candidate for alternative energy fuels for combustion in a boiler or a furnace without any further chemical treatment. The study revealed that the bio-oil obtained from sugarcane bagasse is combustible and more environmentally friendly.

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