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- W2028931571 abstract "Experiments of rubber wood chip gasification were carried out in a 100-kWth bubbling fluidised bed gasifier to investigate the effect of air to fuel ratio (represented as equivalence ratio – ER) on the yield and properties of synthesis gas. For all experiments, the flow rate of ambient air was fixed, while the feed rate of rubber wood chip was adjusted to vary ER in the range of 0.32–0.43. Increasing ER continuously raised the bed temperature, which resulted in higher synthesis gas yield and lower yield of ash and tar. However, higher ER generally gave synthesis gas of lower heating value, partly due to the dilution of N2. Considering the energy efficiency of the process, the optimum operation was achieved at ER = 0.38, which yielded 2.33 Nm3 of synthesis gas per kg of dry biomass at the heating value of 4.94 MJ/Nm3. The calculated carbon conversion efficiency and gasification efficiency were 97.3% and 80.2%, respectively. The mass and energy balance of the gasification process showed that the mass and energy distribution was significantly affected by ER and that the energy losses accounted for ∼25% of the total output energy. The economical assessment of synthesis gas utilisation for heat and electricity production based on a 1-MWth bubbling fluidised bed gasifier and the operational data resulting from the rubber wood chip gasification experiments in this study clearly demonstrated the attractiveness of replacing heavy fuel oil and natural gas by the synthesis gas for heat applications in terms of 70% and 50% annual saving of fuel cost, respectively. However, the case of electricity production does not seem a preferable option due to its current technical and non-technical barriers." @default.
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- W2028931571 date "2011-01-01" @default.
- W2028931571 modified "2023-10-16" @default.
- W2028931571 title "Potential of synthesis gas production from rubber wood chip gasification in a bubbling fluidised bed gasifier" @default.
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- W2028931571 doi "https://doi.org/10.1016/j.enconman.2010.06.044" @default.
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