Model Calculation of Heat Balance of Wood Pyrolysis
Model Calculation of Heat Balance of Wood Pyrolysis
复制标题
木材热解热平衡模型计算
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
M. Kaiho
中科院分区：
文献类型：
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作者：
Y. Kodera;M. Kaiho
为了改进木材热解气化系统，对木材热解过程进行了化学计量分析和热平衡分析。通过计算热解热、产物显热、潜热和炉内热损失，估算了热解炉周围的热平衡。利用文献数据，用平均组成式表示大分子，用化学计量法计算热解热，并给出了热解总方程。在773 ~ 1373 K范围内，热解为放热反应.尽管热解的放热性质，热解炉周围的热平衡计算表明，需要外部热量来补偿热消耗的显热和潜热的产品和热解炉的热损失。当饲料含有水分时，需要额外的外部热量。为了使用木炭作为燃料用于炉的外部加热，计算所需的木炭量。
Stoichiometric analysis and heat balance analysis of wood pyrolysis were conducted to improve a pyrolytic gasification system. Heat balance around a pyrolysis furnace was estimated by calculating heat of pyrolysis, sensible and latent heats of products and heat loss of a furnace. Using literature data, macromolecules were expressed by mean compositional formulas, and the heat of pyrolysis was obtained by the stoichiometric approach including the overall equation of pyrolysis. Pyrolysis was exothermic reaction at the range of 773 – 1373 K. Despite the exothermic nature of pyrolysis, heat balance calculation around a pyrolysis furnace showed that external heat was required to compensate heat consumption of the sensible and latent heats of products and heat loss of a pyrolysis furnace. When a feed contains moisture, additional external heat was required. To use charcoal as fuel for the external heating to a furnace, the required amount of charcoal was calculated.