CIESC Journal

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MDEA吸收CO2稳态模型的数值求解方法

钟战铁; 李伟; 施耀; 何锋; 周明华   

  1. Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2003-08-28 发布日期:2003-08-28
  • 通讯作者: 钟战铁

A New Method to Solve Film Model for CO2 Absorption with Aqueous Solution of N-
Methyldiethanolamine

ZHONG Zhantie; LI Wei; SHI Yao; HE Feng; ZHOU Minghua   

  1. Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-08-28 Published:2003-08-28
  • Contact: ZHONG Zhantie

摘要: The shooting method and the difference method are used for numerical simulation of CO2
absorptionwith aqueous solution of methyldiethanolamine (MDEA). It is demonstrated that
these methods are available forthe steady-state model, which may be expressed as a set of
differential algebraic equations (DAEs) with two-pointboundary values. This method makes it
possible not only to obtain the concentration profiles for MDEA system, butalso to reveal
the effect of CO2 interfacial concentration on the enhancement factor. With this numerical
simulation,the mass transfer process with multicomponent diffusion and reactions can be
better understood.

关键词: film model;numerical simulation;carbon dioxide;methyldiethanolamine

Abstract: The shooting method and the difference method are used for numerical simulation of CO2
absorptionwith aqueous solution of methyldiethanolamine (MDEA). It is demonstrated that
these methods are available forthe steady-state model, which may be expressed as a set of
differential algebraic equations (DAEs) with two-pointboundary values. This method makes it
possible not only to obtain the concentration profiles for MDEA system, butalso to reveal
the effect of CO2 interfacial concentration on the enhancement factor. With this numerical
simulation,the mass transfer process with multicomponent diffusion and reactions can be
better understood.

Key words: film model, numerical simulation, carbon dioxide, methyldiethanolamine