流化床快速热解笋壳的研究

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基金项目:

福建省自然科学基金项目(2009J01230);十一五国家科技支撑计划项目(2008BADA9B0501);福建省教育厅资助项目(JA09068)

Rapid pyrolysis of bamboo shoot shell in fluidized bed

1.
College of Material Engineering, Fujian Agriculture and Forestry Univeristy, Fuzhou, Fujian 350002, China;
2.
College of Food Science, Fujian Agriculture and Forestry Univeristy, Fuzhou, Fujian 350002, China

摘要: 以笋壳为原料,石英砂为流化介质,在自行研制的流化床快速热解装置上进行热解试验,研究了热解温度、物料尺寸、进料速率、滞留时间和添加剂对笋壳热解产物分布的影响.结果表明:加入添加剂KNO3热解效果较好,较佳工艺条件是热解温度500℃、物料尺寸1.0mm、进料速度50gmin-1、滞留时间0.8s、KNO3浓度0.4%,液体产率可达62.7%.
- 笋壳 /
- 快速热解 /
- 流化床 /
- 产率
Abstract: Pyrolysis experiments on the bamboo shoot shell were carried out in a custom-designed fluidized bed.The bed applied quartz sand as the fluidizing medium.The effects of temperature,material size,feeding rate,retention time and additives on bio-oil yield were studied.The results showed that the optimal pyrolyis conditions included 0.4% addition of KNO3,temperature at 500℃,material size of 1.0 mm,feeding speed at 50 g/min and retention time of 1s.Under such conditions,the bio-oil yield reached 62.7%.
- bamboo shoot shell /
- rapid pyrolysis /
- fluidized bed /
- yield

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