• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy Conversion & Management >Characterization of the gas releasing behaviors of catalytic pyrolysis of rice husk using potassium over a micro-fluidized bed reactor
【24h】

Characterization of the gas releasing behaviors of catalytic pyrolysis of rice husk using potassium over a micro-fluidized bed reactor

机译：在微流化床反应器上用钾催化热解稻壳的气体释放特性

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

Influence of potassium on the gas releasing behaviors during rice husk high-temperature pyrolysis was investigated under isothermal conditions in a two stage micro-fluidized bed reactor. Reaction kinetics for generating H-2, CO, CO2 and CH4 was investigated based on the Friedman and model-fitting approaches. Results indicated that different gas species had different times to start and end the gas release process, particularly at 600 degrees C, representing different chemical routes and mechanics for generating these gas components. The resulting apparent activation energies for H-2, CO, and CO2 decreased from 23.10 to 12.00 kJ/mol, 15.48 to 14.03 kJ/mol and 10.14 to 7.61 kJ/mol respectively with an increase in potassium concentration from 0 to 0.5 mol/kg, while that for CH4 increased from 16.85 to 19.40 kJ/mol. The results indicated that the addition of potassium could promote the generation reactions of H-2, CO and CO2 while hinder the generation reactions of CH4. The pyrolysis reaction was further found to be subject to the three-dimensional diffusion model for all the samples. (C) 2017 Elsevier Ltd. All rights reserved.
机译：在两级微流化床反应器中，在等温条件下研究了钾对稻壳高温热解过程中气体释放行为的影响。基于弗里德曼和模型拟合方法研究了生成H-2，CO，CO2和CH4的反应动力学。结果表明，不同的气体种类具有不同的开始和结束气体释放过程的时间，特别是在600摄氏度时，代表了产生这些气体成分的不同化学路线和机理。随着钾浓度从0到0.5 mol / kg的增加，H-2，CO和CO2的表观活化能分别从23.10降低到12.00 kJ / mol，15.48到14.03 kJ / mol和10.14到7.61 kJ / mol。 ，而CH4的从16.85 kJ / mol增加到19.40 kJ / mol。结果表明，钾的添加可以促进H-2，CO和CO2的生成反应，而阻碍CH4的生成反应。还发现对于所有样品，热解反应都受到三维扩散模型的影响。 （C）2017 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Energy Conversion & Management》 |2017年第3期|395-403|共9页
  • 作者

    Liu Yuan; Wang Yan; Guo Feiqiang; Li Xiaolei; Li Tiantao; Guo Chenglong; Chang Jiafu;

  • 作者单位

    China Univ Min & Technol, Sch Elect & Power Engn, Xuzhou 221116, Peoples R China;

    China Univ Min & Technol, Sch Elect & Power Engn, Xuzhou 221116, Peoples R China;

    China Univ Min & Technol, Sch Elect & Power Engn, Xuzhou 221116, Peoples R China;

    China Univ Min & Technol, Sch Elect & Power Engn, Xuzhou 221116, Peoples R China;

    China Univ Min & Technol, Sch Elect & Power Engn, Xuzhou 221116, Peoples R China;

    China Univ Min & Technol, Sch Elect & Power Engn, Xuzhou 221116, Peoples R China;

    Shandong Baichuan Tongchuang Energy Co Ltd, Jinan 250101, Shandong, Peoples R China;

  • 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

    Kinetics; Micro-fluidized bed; Isothermal; Potassium; Biomass;

    机译：动力学;微流化床;等温;钾;生物质;

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