Study on fluidized2bed pyrolysis of wa ste paper

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摘要： A lab2scale fluidized bed is setup and pyrolysis experiments are carried out. W hen temperature ranges from 400 to 700 ℃, the yields of solid residue, bio2oil and syngas range from 36% to 18%, 19% to 30% and 9% to 42%, respectively, and the mass balance of pyrolysis ranges from 80% to 95%. A t 400 to 700 ℃, the characteristics of bio2oil are sim ilar and the heat value is about 10MJ / kg. W hen the temperature is over 600 ℃, the yield of syngas increases app roximately twice as much as that at 500 ℃. The yields of CO2 and CO increase from 70 to 230L / kg and 50 to 106L / kg, respectively, while the yield of syngas only increasesabout 5% when the temperature increases from 600 to 700 ℃. The results indicate that the pyrolysis mechanism of waste paper is sim ilar from 400 to 700 ℃, while the yield of syngas can be affected by secondary pyrolysis of bio2oil