玉米秆和稻草的能源利用研究

Study on the conversion laws from cornstalk and straw to energy

对玉米秆和稻草进行了热解特性研究。首先进行了原料热解过程中挥发物形成反应的研究,计算了反应动力学参数。在此基础上,利用固定床反应器进行了秸秆热解制备燃料过程的研究,主要探讨了热解过程中热解焦、液相产物的特性和可燃气体(包括氢气、甲烷、一氧化碳和乙烯)的产率和产量随热解温度的变化规律,以及添加氧化镁、三氧化二镍等催化剂的影响。此外,还研究了热解前后原料和热解焦的堆密度变化及热解过程中固、液、气三相产物的分布状况。

In order to effectively use agricultural wastes,the pyrolysis characteristics of cornstalk and straw is studied based on research on thermal decomposition reaction of substances.Generation of fuel from straw pyrolysis in a laboratory scale fixed-bed reactor is discussed.Relationship between concentration,the yield of combustible gases(including H_2,CH_4,CO and C_2H_4) and the temperature and the characteristics of solid,liquid productions are mainly studied.Influence of the addition of two types of catalysts ie MgO,Ni_2O_3 is also presented.In addition,the pile-density of material and solid production under different condition are also discussed.