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生物质化学工程

生物质化学工程 ›› 2010, Vol. 44 ›› Issue (2): 5-8.

• 论文 • 上一篇    下一篇

竹炭制备工艺的比较

郑志锋1,2, 袁洋春2, 蒋剑春1, 邓先伦1, 杨晓琴2, 孙康1   

  1. 1. 中国林业科学研究院, 林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局, 林产化学工程重点开放性实验室, 江苏 南京 210042;2. 西南林学院, 西南山地森林资源保育与利用省部共建教育部重点实验室, 云南 昆明 650224
  • 收稿日期:2009-08-31 修回日期:1900-01-01 出版日期:2010-03-30 发布日期:2010-03-30
  • 通讯作者: 蒋剑春(1955- ),男,研究员,博士生导师,主要从事生物质能源和炭材料的研究开发工作。

Comparison of Preparation Technology of Bamboo Charcoal

ZHENG Zhi-feng1,2, YUAN Yang-chun2, JIANG Jian-chun1, DENG Xian-lun1, YANG Xiao-qin2, SUN Kang1   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Laboratory for Chemical Utilization of Biomass;Key and Open Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, China;2. Key Laboratory of Protection, Cultivation and Utilization of Forest Resource in Southwest Country Cooperated by Ministry of Education with Yunnan Province, Southwest Forestry University, Ku nming 650224, China
  • Received:2009-08-31 Revised:1900-01-01 Online:2010-03-30 Published:2010-03-30

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摘要： 比较研究了竹炭一步法与两步法制备工艺。考察比较了炭化温度、炭化时间对竹炭得率、碘吸附值与电阻率的影响,并用扫描电镜表征了竹炭的结构特征。结果表明,相同炭化条件下,一步法竹炭得率较两步法高,碘吸附值与电阻率较两步法低;两步法竹炭具有较高的孔隙率。一步法与两步法竹炭较佳制备工艺条件为炭化温度900℃、炭化时间4h,其得率分别为24.37%与23.80%,碘吸附值分别为265与364 mg/g,电阻率分别为4.37与5.17 Ω·cm。

关键词: 竹炭, 得率, 碘吸附值, 电阻率

Abstract: Bamboo charcoals were prepared using one-step or two-step carbonization method under various carbonization temperatures and times. The yield, iodine number and electrical resistivity of the obtained charcoals were measured and their structures were observed by scanning electron microscope (SEM) in order to elucidate the effects of preparation methods on the properties of bamboo charcoal. Results showed that the charcoal yield by the one-step method was higher than that by the two-step method, whereas their iodine number and electrical resistivity were lower. The optimal carbonization temperature and time to prepare bamboo charcoal were 900℃ and 4 h, independently of the carbonization method. In this case, charcoal yield, iodine number and electrical resistivity of bamboo charcoal by one-step method and two-step method were 24.37% and 23.80%, 265 and 364 mg/g, 4.37 and 5.17 Ω·cm, respectively.

Key words: bamboo charcoal, yield, iodine number, electrical resistivity

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