Abstract
The fast pyrolysis in a fluidized-bed reactor using pine sawdust has been studied at 500 °C with ceramic hot vapor filter (HVF). The effects of HVF temperature (350, 400, 450, and 500 °C) on mass balance, energy balance, and physical properties of pyrolysis products were investigated. The results were reported that the maximum yields of bio-oil and organic liquid were 58.7 and 41.6 wt % at HVF temperatures of 350 and 400 °C, respectively. When HVF temperature increased from 350 °C to 500 °C, the maximum biochar yield was 25.3 wt % at 350 °C, while the minimum noncondensable gas (NCG) yield was 19.2 wt % at 400 °C. The energy consumption of pine sawdust pyrolysis was calculated as 2.38 MJ/kg. The optimized HVF temperature for energy balance was 450 °C. Under these conditions, the potentially recovered energy of bio-oil and total pyrolysis products reached maximum values of 7.49 MJ/kg and 17.91 MJ/kg, respectively. Maximum energy recovery ratios of total pyrolysis products and bio-oil were 0.92 and 0.39, re...
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