生物质热裂解制油的动力学及技术研究

发布时间：2019-01-06 07:27

【摘要】：在不同升温速率下对水曲柳原料在 30 0～ 12 0 0 K范围内进行了热重分析试验 ,试验显示生物质热裂解随温度升高经历五个不同阶段。采用微商法和积分法对其主体阶段的分析得到相互一致的结果 :活化能为 10 1.4 k J/mol、指数因子为 1.2 2× 10 7s- 1 的一阶一步动力学模型。在所开发的以流化床反应器为主体的生物质热裂解制油系统上对生物质进行热裂解试验 ,得出了温度、粒径、停留时间和木种等几种最为重要的参数对热裂解制油的影响规律 ,并在 773K左右成功制取出产率高达 6 0 %的生物油 ,同时用色质联机分析 (GC- MS)技术对所制取的生物油进行了初步分析。
[Abstract]:Thermogravimetric analysis of Fraxinus mandshurica was carried out in the range of 300 ~ 1 000 K at different heating rates. The results showed that biomass pyrolysis experienced five different stages with the increase of temperature. The results obtained by the differential quotient method and the integration method are consistent with each other: the activation energy is 101.4 k / mol and the exponential factor is 1.22 脳 10 ~ (7) s ~ (-1), which is a one-step kinetic model with an activation energy of 101.4 kJ / mol and an exponential factor of 1.22 脳 10 ~ 7s ~ (-1). The pyrolysis test of biomass was carried out in the oil production system of biomass pyrolysis based on fluidized bed reactor, and the temperature and particle size were obtained. The effect of residence time and wood species on the oil production by pyrolysis was studied. The bio-oil with a yield of up to 60% was successfully prepared at 773K or so. At the same time, the bio-oil was preliminarily analyzed by GC- MS.
【作者单位】：浙江大学能源清洁利用与环境教育部重点实验室浙江大学能源清洁利用与环境教育部重点实验室浙江大学能源清洁利用与环境教育部重点实验室浙江大学能源清洁利用与环境教育部重点实验室浙江大学能源清洁利用与环境教育部重点实验室浙江大学能源清洁利用与环境教育部重点实验
【基金】：国家自然科学基金 (50 1 760 4 6)、(2 99760 39) 国家杰出青年科学基金 (50 0 2 561 8) 国家重点基础研究专项经费资助项目(2 0 0 1 CB40 960 0 )
【分类号】：TK6

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