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生物质化学工程

生物质化学工程 ›› 2014, Vol. 48 ›› Issue (3): 6-10.doi: 10.3969/j.issn.1673-5854.2014.03.002

• 研究报告 • 上一篇    下一篇

炭化条件对小麦秸秆炭棒燃烧性能的影响

陈超, 蒋剑春, 孙康, 张燕萍, 贾羽洁   

  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;江苏省生物质能源与材料重点实验室, 江苏 南京 210042
  • 收稿日期:2013-10-30 出版日期:2014-05-30 发布日期:2014-05-29
  • 通讯作者: 蒋剑春（1955- ），男，研究员，博士，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;E-mail：bio-energy@163.com。 E-mail:bio-energy@163.com
  • 作者简介:陈 超（1985- ），男，湖南道县人，研究实习员，主要从事炭材料研究与应用；E-mail：cc1985_1019@126.com
  • 基金资助:
    “十二五”国家科技支撑计划资助（2012BAD30B0204）

Effect of Carbonization Conditions on the Combustion Performance of Wheat Straw Carbon Sticks

CHEN Chao, JIANG Jian-chun, SUN Kang, ZHANG Yan-ping, JIA Yu-jie   

  1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab.for Biomass Chemical Utilization;Key and Open Lab.of Forest Chemical Engineering, SAF;Key Lab. of Biomass Energy and Materials, Jiangsu Province, Nanjing 210042, China
  • Received:2013-10-30 Online:2014-05-30 Published:2014-05-29

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摘要： 针对小麦秸秆成型燃料中挥发分含量较高导致燃烧过程中产烟量较大、热值不高的缺点，将秸秆成型燃料进一步炭化制得秸秆炭棒以改善成型燃料的燃烧性能。考察了炭化条件，包括炭化温度、升温速率和炭化时间对所制得的炭棒燃烧性能的影响。实验结果表明制得的炭棒较成型燃料的热值得到了明显的提高，以5 ℃/min的速率升温至300 ℃并保持1 h条件下制得的炭棒热值可以由炭化之前的14.48 MJ/kg升高至19.08 MJ/kg。该炭棒的密度由1.31 g/cm3降至0.99 g/cm3，炭棒中固定碳质量分数达到32.60%，较成型燃料显著升高；此外挥发分由约60%降至约40%，产烟时间和产烟量显著降低，得率为52.5%，可更好地满足工业及生活的使用需求。

关键词: 小麦秸秆, 成型燃料, 炭棒, 炭化, 燃烧性能

Abstract: In order to solve the shortcomings of straw briquettes, such as producing large amount of smoke during burning, failing to improve the calorific value due to its high volatile matter content, the briquettes were further carbonized for enhancing the calorific value and decreasing the amount of volatile component. The carbonization conditions, including carbonization temperature, heating rate and time, were investigated. Results showed that the calorific value of the produced carbon stick was increased obviously from 14.48 MJ/kg to 19.08 MJ/kg after heating at 300 ℃ for 1 h, with heating rate at 5 ℃/min. Density decreased from 1.31 g/cm3 to 0.99 g/cm3, and the fixed carbon increased obviously to approximately 40% after carbonization. Besides, smoking time and fume decreased dramatically due to the drastical decrease of violate matters from 60% to 40%, approximately, while the yield was 52.5%. This meets the demand of industry and daily life utilization.

Key words: wheat straw, briquettes, carbon stick, carbonization, combustion performance

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