By Alfred P. Haggerty
Within the strength undefined, biomass refers to organic fabric which might be used as gasoline or for business creation. Biomass comprises plant topic grown to be used as biofuel, in addition to plant or animal subject used for creation of fibres, chemical substances or warmth. This publication offers present study within the examine of biomass plants, together with the conversion of wooden into liquid fuels; alfalfa biomass creation; gasification of biomass in aqueous media and biofuel construction power.
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Additional resources for Biomass Crops: Production, Energy, and the Environment (Environmental Science, Engineering and Technology: Energy Policies, Politics and Prices)
1967) Spout Fluid 73,2/14/12,8 ~<2 <3 mm 6 kg/h (Chen et al. 2003) Beds (480ºC, sawdust) 71/15/14 (500ºC, (Wagenaar et al. Rotating Cone mixed wood 0 <0,3 mm 500-1500 2 ton/h 2001 ; Janse et al. sawdust) 1999, BTG) (Meier et al. Rotating disk 68/10/22 (disk at 6-48 2007 ; Di Blasi Ablative 650ºC, wood 0 Chips 502-1675 ton/day 1996) reactor chips) Reactor Twin Screw 66/17/17 / (~500ºC, beech 0 flour) Sawdust, Chops… Vacuum reactor 56/26/18 (475ºC, 0 0,4mm particles) Bark pellets 86-155 100-200 12 ton/day (Henrich 2007, Bioliq) (Garcia-Perez, 3,5 ton/h 2007; Yang et al.
Fluidized bed reactors are widely used in many industrial applications owing to its rapid heat transfer characteristics and uniform temperature profiles. Hence, the use of these conventional technologies involves lower technical and economic risks. A key drawback with fluidized bed reactors is the small particle size of the biomass feedstock required to ensure adequate fluidizing behavior of the bed and fast heat transfer conditions. Size reduction may involve significant economic costs. Figure 7 show a schematic representation of conventional (bubbling and circulating bed) and non conventional (conical spouted bed and spout fluid bed) fluidized bed reactors.
0 cP) and comparable to heavy fuel oil. However, viscosity in the pyrolysis oil varies depending on many parameters including water content and average molecular weight. Viscosity also increases with time as a result of aging reactions, where organic molecules recombine and polymerize into larger molecular weight oligomers. Hence, values in excess of 1000 cP have been reported for oils with low water content and exposed to ambient conditions or high temperatures for long periods of time. Conventional injectors may not work for liquids with such high viscosity values.
Biomass Crops: Production, Energy, and the Environment (Environmental Science, Engineering and Technology: Energy Policies, Politics and Prices) by Alfred P. Haggerty