化工进展 ›› 2016, Vol. 35 ›› Issue (03): 727-732.DOI: 10.16085/j.issn.1000-6613.2016.03.012

• 化工过程与装备 • 上一篇    下一篇

基于生物质双流化床快速热解生产流程模拟的分析

吕奇铮, 徐起翔, 张长森, 张瑞芹   

  1. 郑州大学化学与分子工程学院, 河南省环境化学与低碳技术重点实验室, 河南 郑州 450001
  • 收稿日期:2015-07-27 修回日期:2015-08-18 出版日期:2016-03-05 发布日期:2016-03-05
  • 通讯作者: 张长森,博士,从事生物质能源利用研究。E-mail:zhangcs@zzu.edu.cn.
  • 作者简介:吕奇铮(1990-),男,硕士研究生。
  • 基金资助:

    河南省科技厅开放合作项目(142106000046).

Exergy analysis of biomass fast pyrolysis in dual fluidized bed based on process simulation

LÜ Qizheng, XU Qixiang, ZHANG Changsen, ZHANG Ruiqin   

  1. Environmental Chemistry & Low Carbon Technologies Lab of Henan Province, Chemistry and Molecular Engineering College, Zhengzhou University, Zhengzhou 450001, Henan, China
  • Received:2015-07-27 Revised:2015-08-18 Online:2016-03-05 Published:2016-03-05

摘要: 用Aspen Plus 软件模拟了生物质双流化床快速热解生产流程,对流程的干燥、热解、冷凝、燃烧等过程 进行了?分析,找出?利用率较低的可能影响因素,并对其改善。结果表明:流程压降对热解过程?利用率影 响较小;副产物焦炭完全用作燃烧供热时,整个流程热流?损失较大,65%的焦炭用作燃烧供热时,?利用率由 69%提高到75.6%,模拟结果为生物质热解工业化放大过程能耗优化设计提供了参考依据。

关键词: 生物质, 快速热解, Aspen Plus, ?

Abstract: Fast pyrolysis of biomass in a dual fluidized was simulated using Aspen Plus software,and the process included the following unit operations:drying,pyrolysis,bio-oil condensation,and combustion . Based on the simulation results,exergetic analysis of the whole process was performed in order to optimize the overall exergetic efficiency. Analysis results indicated that the exergetic efficiency increased only slightly with a decrement of system pressure drop while increased significantly from 69% to 75.6% when the pyrolysis char combusted was reduced from 100% to 65%. The conclusions are useful for industrial design of biomass fast pyrolysis.

Key words: biomass, pyrolysis, Aspen Plus, exergy

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