Liquefaction Behaviour of Twelve Tropical
نویسندگان
چکیده
10 Liquefaction of ligno-cellulosic biomass is one of the chemical conversion technologies for 11 developing new materials, adhesives and energy systems. The liquefaction process also 12 provides an opportunity to utilize ligno–cellulosic wastes such as saw-dust, woody wastes, 13 branches and twigs, agro-residues, etc. for the development of value added products. This 14 paper presents the liquefaction behaviour of wood meal of twelve tropical hardwood species 15 in phenol as liquefying media to produce chemically active liquid which has potential to be 16 used as a raw material for developing different products. The liquefaction was carried out at 17 140C temperatures for 120 minutes at different liquid ratios. In all the cases, a viscous and 18 sticky black liquid was obtained after the stipulated reaction time. The liquefaction efficiency 19 was found to vary with species and liquid ratio. The highest liquefaction efficiency of 93% 20 was achieved in balsa wood at 1:3 (wood: phenol) liquid ratio. The liquefied wood and 21 residues were characterized by FTIR spectroscopy. The liquefied wood was found to be 22 highly acidic in nature. Viscosity of liquefied wood at higher liquid ratio was independent of 23 wood species. Correlation analysis revealed a strong negative relationship between wood 24 basic density and liquefaction efficiency. 25
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