旋转锥生物质裂解反应器裂解工艺的研究
Study on process of pyrolysis in a rotating cone reactor
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摘要: 为了研究生物质裂解工艺最佳条件，以木屑为原料，石英砂为热媒，对建立的以旋转锥反应器为主体的生物质快速裂解工艺进行研究，在单因素实验基础上，对4个主要因素（裂解温度、真空度、旋转锥盘转速和木屑粒径）进行正交实验。在木屑含水率为8.2%，热媒量1 200 g，进料速率4 kg/h的条件下，确定了最佳工艺条件为：裂解温度550℃，真空度0.08 MPa，旋转锥盘转速115 r/min，木屑粒径为30目。最佳条件下生物质转化率为54.83%，实验研究表明,自制旋转锥反应器裂解工艺具有可行性。Abstract: In order to investigate the optimum conditions for biomass pyrolysis, wood shatters as raw material and quartz sand as heat medium, the system of rapid pyrolysis of biomass with a rotating cone reactor was established. The single factor experiment is based on four main factors (pyrolysis temperature, vacuum, rotation speed of the cone disc, diameter of materials) to the orthogonal experiment. The results indicated that the optimal conditions for pyrolysis of biomass were rotating rate of 115 r/min, temperature of 550℃, volume rate of 0.08 MPa and diameter of materials less than 30 mesh with the condition of sawdust humidity at 8.2%, heat quantity of 1 200 g and material-feeding rate of 4 kg/h. Under the optimal experimental condition the highest oil production rate was 54.83%. The experimental study showed that selfrotating cone pyrolysis reactor on biomass pyrolysis technology was feasible.
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Key words:
- biomass /
- bio-oil /
- fast pyrolysis /
- rotating cone reactor
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