抄録
Analyzing of slow pyrolysis process of woody biomass and effect of particle size of woody biomass on pyrolysis process has been studied by employing the heat and mass transfer process. The different particles size of the biomass influences on heat transfer rate (Temperature gradient), which affects on the pyrolysis process, the flow rates of generated gases and the concentration of the generated product gases (CO, CO_2, H_2 and CH_4). According to the gas chromatography results, CO_2 and CO of maximum gas yield are obtained at 60min, 220℃ and 80min, 420℃ respectively CH_4 and H_2 of maximum gas yield are obtained at 100min, 550℃ and 120min, 720℃ respectively.
