• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel >Autothermal fast pyrolysis of birch bark with partial oxidation in a fluidized bed reactor
【24h】

Autothermal fast pyrolysis of birch bark with partial oxidation in a fluidized bed reactor

机译：流化床反应器中桦树皮的自热快速热解与部分氧化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Fast pyrolysis of birch bark sawdust with partial (air) oxidation was studied in a bubbling fluidized bed reactor at reaction temperatures of 500 and 550 ℃. The bio-oil vapors were fractionated using a series of three condensers maintained at desired temperatures, providing a dry bio-oil with less than 1 wt.% water and over 93% of the total bio-oil energy. Oxygen feed was varied to study its effect on yield, composition, and energy recovery in the gas, char and oil products. The addition of oxygen to the pyrolysis process increased the production of gases such as CO and CO_2. It also changed the dry bio-oil properties, reducing its heating value, increasing its oxygen content, reducing its average molecular weight and its concentration of heavy bio-oil compounds, while increasing its viscosity and its phenolics concentration. The lower reaction temperature of 500 ℃ was preferred for both dry bio-oil yield and quality. Autothermal operation of the pyrolysis process was achieved with an oxygen feed of 0.08 g per g of bio-mass at the reaction temperatures of 500 and 550 ℃. At these two temperatures, when compared with the standard pyrolysis with pure nitrogen, the yield of dry bio-oil was reduced by 22% and 31%, whereas the total energy content of the dry bio-oil was reduced by 25% and 34%, respectively.
机译：在鼓泡流化床反应器中，在500和550℃的反应温度下，研究了桦树皮锯末的快速热解与部分（空气）氧化作用。使用保持在所需温度的一系列三个冷凝器将生物油蒸气分馏，以提供干燥的生物油，其具有少于1重量％的水和超过总生物油能量的93％。对氧气进料进行了多种研究，以研究其对天然气，焦炭和石油产品中收率，组成和能量回收的影响。在热解过程中添加氧气可增加诸如CO和CO_2等气体的产生。它还改变了干生物油的性能，降低了其热值，增加了其氧含量，降低了其平均分子量，降低了重质生物油化合物的浓度，同时提高了其粘度和酚类浓度。较低的反应温度为500℃，这对于干燥生物油的产量和质量都是优选的。在500和550℃的反应温度下，热分解过程的自热运行是通过每克生物质供给氧气0.08克实现的。在这两个温度下，与标准的纯氮热解相比，干生物油的产率分别降低了22％和31％，而干生物油的总能量含量降低了25％和34％ ， 分别。

著录项

  • 来源
    《Fuel》 |2014年第4期|27-38|共12页
  • 作者

    Dongbing Li; Franco Berruti; Cedric Briens;

  • 作者单位

    Institute for Chemicals and Fuels from Alternative Resources (ICFAR), Department of Chemical & Biochemical Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada;

    Institute for Chemicals and Fuels from Alternative Resources (ICFAR), Department of Chemical & Biochemical Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada;

    Institute for Chemicals and Fuels from Alternative Resources (ICFAR), Department of Chemical & Biochemical Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Oxidative pyrolysis; Autothermal; Fractional condensation; Bio-oil; Birch bark;

    机译：氧化热解;自热;局部凝结;生物油桦树皮;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号