Department of Thermal Engineering, School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China.
Department of Thermal Engineering, School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China.
Bioresour Technol. 2014;152:86-92. doi: 10.1016/j.biortech.2013.11.005. Epub 2013 Nov 11.
In the paper, biochar preparation from cotton stalk and bamboo sawdust by carbonization process was addressed. The physical and chemical properties and combustion characteristics of the biochar prepared using a tubular fixed bed were investigated. The combustion character index (S), the ignition temperature (Ti) and burnout temperature (Tf) were used to evaluate the combustion characteristics of the biochars. The results indicate that the yield and the volatile yield of the biochar decrease and the fixed carbon yield increases with the increase of the carbonization temperature. The ignition temperature and burnout temperature of the biochar increase and the value of S decreases when the carbonization temperature increases. The biochar produced from cotton stalk shows better combustion characteristics than the bamboo sawdust biochar does. Compared with commercial barbecue charcoal, the cotton stalk biochar produced under 600 °C can be utilized as barbecue charcoal.
本文探讨了通过碳化过程从棉秆和竹屑制备生物炭的方法。研究了使用管式固定床制备的生物炭的物理化学性质和燃烧特性。采用燃烧特性指数（S）、着火温度（Ti）和燃尽温度（Tf）来评价生物炭的燃烧特性。结果表明，随着碳化温度的升高，生物炭的产率和挥发分产率降低，固定碳产率增加。随着碳化温度的升高，生物炭的着火温度和燃尽温度升高，S 值降低。棉秆生物炭的燃烧特性优于竹屑生物炭。与商业烧烤炭相比，在 600°C 下制备的棉秆生物炭可用作烧烤炭。
