化工进展 ›› 2015, Vol. 34 ›› Issue (08): 3003-3008.DOI: 10.16085/j.issn.1000-6613.2015.08.015

• 能源加工与技术 • 上一篇    下一篇

木炭生产技术研究进展

黄博林, 陈小阁, 张义堃, 郑毅骏, 刘宝庆   

  1. 浙江大学化工机械研究所, 浙江 杭州 310027
  • 收稿日期:2015-03-03 修回日期:2015-06-04 出版日期:2015-08-05 发布日期:2015-08-05
  • 通讯作者: 刘宝庆,副教授,硕士生导师,主要从事高效节能技术与装备的研究。E-mail baoqingliu@126.com。
  • 作者简介:黄博林(1993—),男,硕士研究生。E-mail bolinhv@163.com。
  • 基金资助:
    浙江省重点技术创新团队计划项目(2011R50005)。

Research progress of charcoal production

HUANG Bolin, CHEN Xiaoge, ZHANG Yikun, ZHENG Yijun, LIU Baoqing   

  1. Institute of Process Machinery, Zhejiang University, Hangzhou 310027, Zhejiang, China
  • Received:2015-03-03 Revised:2015-06-04 Online:2015-08-05 Published:2015-08-05

摘要: 木炭作为一种重要的生产、生活原料,在工业生产和家庭生活中应用广泛。现有的木炭生产技术主要有内热式炭化、外热式炭化和循环气流加热式炭化技术,本文概述了3种炭化技术与设备的研发现状,并总结了炭化工艺改进的理论研究进展:长低温停留时间,然后快速升温到高温段保温的加热工艺有利于提高木炭产率和品质,同时节省炭化时间和能量;适当提高原料湿度和炭化压力将促进木材热解,增大压力还能提高木炭得率;减小原料尺寸可以提升炭化速率,但会使得炭得率降低。最后指出当前国内木炭生产主要存在工业化水平低、理论研究滞后和缺乏相关的生产使用标准等问题,未来的木炭生产将沿着工业化、高效化和标准化方向发展。

关键词: 木炭, 炭化工艺, 生产设备, 生物质, 热解, 再生能源

Abstract: Cooling seawater is used generally in petrochemical industry, power generation and shipping, however crystallization fouling of seawater would deteriorate heat transfer and increase energy consumption. The experiments of crystallization-fouling by seawater were conducted under static condition. The crystallization fouling composition was analyzed by XRD, and the results showed that seawater fouling was CaSO4·2H2O and Mg(OH)2. A crystallization-fouling growth model was proposed as m=ke-bt+M0, and the experimental data of different roughness metal at 80℃ was fitted to the correlation with maximum relative error of 15.7%. The crystallization-fouling correlation and the growth curve showed that induction period, growth rate and mass of seawater crystallization-fouling were closely related to fouling-ions properties, super-saturation and metal surface roughness. When roughness of metal decreased, induction period of crystallization fouling became longer and grown rate became lower.

Key words: charcoal, carbonization technology, production equipments, biomass, pyrolysis, renewable energy

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