JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2018, Vol. 61 ›› Issue (06): 13-19.doi: 10.3969/j.issn.1000-2006.201706060

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The characteristics of bamboo charcoal pyrolyzed from moso bamboo culms in 14 bamboo producing areas in China

LIU Guohua1, FANG Zheng1, ZHENG Xiao1,FAN Tingting1,GAO Jiawei1, WANG Fusheng1,ZHANG Jinchi2*   

  1. (1. Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China; 2. College of Forestry, Nanjing Forestry University, Nanjing 210037, China)
  • Online:2018-11-30 Published:2018-11-30

Abstract: 【Objective】The characteristics of bamboo charcoal in different bamboo producing areas under the same pyro-lysis conditions were analyzed, which provided a theoretical basis for the classification management and utilization of moso bamboo forest. 【Method】The pyrolysis of moso bamboo stalks in 14 bamboo producing areas in China was carried out at 500 °C in tubular furnace, and the characteristics of bamboo charcoal were analyzed. 【Result】 The yield of bamboo charcoal in different bamboo producing areas of China was between 18.45%-30.43%, the pH was between 7.2-7.9, and the specific surface area varied from 4.48 to 73.5 m2/g. The mass ratio of element in bamboo charcoal was mainly carbon, which was between 70.93%-77.55%, and the C/N ratio was between 72.31-185.18. The types of surface functional groups of bamboo charcoal from different bamboo producing areas were almost the same, and the bamboo charcoal in different bamboo producing areas maintained the original tubular hollow structure, but the extent of pore structure development was quite different. 【Conclusion】 The yield of bamboo charcoal in Chishui area of Guizhou Province was the biggest. The pH of bamboo charcoal filtrate in Anji area of Zhejiang Province was the highest. The specific surface area of bamboo charcoal in Wuyishan area of Fujian Province was the biggest. The C/N ratio of bamboo charcoal in Dongan area of Hunan Province was the biggest. The element types of bamboo charcoal in Xing’an area of Guangxi Province was the most abundant, which included all the types of tested elements(C, O, Na, Mg, Si, P, S, Cl, K, Ca, Mn, Cu, Zn, Fe).Therefore, in the future development of the bamboo charcoal industry, it is necessary to establish a database of physical and chemical properties of bamboo charcoal in each bamboo producing area. In the process of extending the bamboo charcoal industrial chain, the bamboo charcoal should be differentiated and utilized according to the physical and chemical properties.

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