SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2013, Vol. 21 ›› Issue (1): 79-84.DOI: 10.1016/S1004-9541(13)60444-9

• 过程系统工程与过程安全 • 上一篇    下一篇

Three Stage Equilibrium Model for Coal Gasification in Entrained Flow Gasifiers Based on Aspen Plus

孔祥东1, 钟伟民2, 杜文莉1, 钱锋 1   

  1. 1 Key Laboratory of Advanced Control and Optimization for Chemical Processes (Ministry of Education), East China University of Science and Technology, Shanghai 200237, China;
    2 Automation Institute, East China University of Science and Technology, Shanghai 200237, China
  • 收稿日期:2012-07-31 修回日期:2012-11-02 出版日期:2013-02-28 发布日期:2013-02-04
  • 通讯作者: ZHONG Weimin, QIAN Feng
  • 基金资助:

    Supported by the Major State Basic Research Development Program of China (2012CB720500), the National Natural Science Foundation of China (U1162202, 61174118), the National Science Fund for Outstanding Young Scholars (61222303) and Shanghai Leading Academic Discipline Project (B504).

Three Stage Equilibrium Model for Coal Gasification in Entrained Flow Gasifiers Based on Aspen Plus

KONG Xiangdong1, ZHONG Weimin2, DU Wenli1, QIAN Feng 1   

  1. 1 Key Laboratory of Advanced Control and Optimization for Chemical Processes (Ministry of Education), East China University of Science and Technology, Shanghai 200237, China;
    2 Automation Institute, East China University of Science and Technology, Shanghai 200237, China
  • Received:2012-07-31 Revised:2012-11-02 Online:2013-02-28 Published:2013-02-04
  • Supported by:

    Supported by the Major State Basic Research Development Program of China (2012CB720500), the National Natural Science Foundation of China (U1162202, 61174118), the National Science Fund for Outstanding Young Scholars (61222303) and Shanghai Leading Academic Discipline Project (B504).

摘要: A three stage equilibrium model is developed for coal gasification in the Texaco type coal gasifiers based on Aspen Plus to calculate the composition of product gas, carbon conversion, and gasification temperature. The model is divided into three stages including pyrolysis and combustion stage, char gas reaction stage, and gas phase reaction stage. Part of the water produced in the pyrolysis and combustion stage is assumed to be involved in the second stage to react with the unburned carbon. Carbon conversion is then estimated in the second stage by steam participation ratio expressed as a function of temperature. And the gas product compositions are calculated from gas phase reactions in the third stage. The simulation results are consistent with published experimental data.

关键词: coal gasification, Texaco gasifier, equilibrium model, carbon conversion, product gas composition

Abstract: A three stage equilibrium model is developed for coal gasification in the Texaco type coal gasifiers based on Aspen Plus to calculate the composition of product gas, carbon conversion, and gasification temperature. The model is divided into three stages including pyrolysis and combustion stage, char gas reaction stage, and gas phase reaction stage. Part of the water produced in the pyrolysis and combustion stage is assumed to be involved in the second stage to react with the unburned carbon. Carbon conversion is then estimated in the second stage by steam participation ratio expressed as a function of temperature. And the gas product compositions are calculated from gas phase reactions in the third stage. The simulation results are consistent with published experimental data.

Key words: coal gasification, Texaco gasifier, equilibrium model, carbon conversion, product gas composition