Olive bagasse (Olea europea L.) was pyrolysed in a fixed-bed reactor. The effects of pyrolysis temperature, heating rate, particle size and sweep gas flow rates on the yields of the products were investigated. Pyrolysis runs were performed using pyrolysis temperatures between 350 and 550 °C with heating rates of 10 and 50°C min-1. The particle size and sweep gas flow rate varied in the ranges 0.224-1.8 mm and 50-200 cm3min-1, respectively. The bio-oil obtained at 500°C was analysed and at this temperature the liquid product yield was the maximum. The various characteristics of bio-oil obtained under these conditions were identified on the basis of standard test methods. The empirical formula of the bio-oil with heating value of 31.8 MJ kg-1was established as CH1.65O0.25N0.03. The chemical characterization showed that the bio-oil obtained from olive bagasse may be potentially valuable as a fuel and chemical feedstock. © 2005 Elsevier Ltd. All rights reserved.
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