中文摘要：

以稻壳为研究对象,在固定床中热解制取液体生物油.实验研究了热解温度、氮气流速和升温速率对热解3种产物分布的影响.在25℃/min的升温速率达到热解终温550℃,氮气流速为150 mL/min工况下液体产率达到最大值49.91%.随着升温速率的增加液体产率升高,焦炭的产率降低.利用热重分析考察了原料的热分解特性.通过X射线衍射方法和SEM对热解焦炭的晶相和形态进行分析.研究表明热解温度对焦炭的晶相和表面形态的影响很大,在550℃的热解温度下得到的焦炭有较突出孔状结构.

英文摘要：

The experiments of the rice husk pyrolysis were performed in a fixed-bed reactor to produce bio-oil. The effects of the different operation factors such as pyrolysis temperature, sweeping gas （ N2 ） flow rates and heating rates on the yields of three products and the characteristics of bio-char were investigated. The maximum bio-oil yield of 49.91% was obtained at 550~C pyrolysis temperature with a heating rate of 25~C/min and nitrogen flow rate of 150 mL/min. As the heating rate increased, it favored the yields of liquid product, yet the bio-char yields decreased. Thermogravimetric analysis （TGA） was introduced to study the thermal decomposition of the feedstock. Crystals and morphology of bio-char with different pyrolysis temperatures were characterized by X-ray diffraction （XRD） and scanning electron microscopy （SEM） analysis. The results showed that pyrolysis temperatures played an important role on the surface morphology and crystal phase of bio-char and the prominent porosity with the bio-char which was generated under 550%; pyrolysis temper- ature was observed.