CIESC Journal

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MDEA与哌嗪、二乙醇胺混合溶液吸收二氧化碳速率研究

张旭a; 杨燕华a; 张成芳b; 王军c   

  1. a Department of Nuclear Science and System Engineering, Shanghai Jiaotong University,
    Shanghai 200030, China
    b Research Institute of Chemical Technology, East China University of Science and
    Technology, Shanghai 200237, China
    c Department of Environment Engineering, Donghua University, Shanghai 200051, 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: 张旭

Absorption Rate of CO2 into MDEA Aqueous Solution Blended with Piperazine and
Diethanolamine

ZHANG Xua; YANG Yanhuaa; ZHANG Chengfangb; WANG Junc   

  1. a Department of Nuclear Science and System Engineering, Shanghai Jiaotong University,
    Shanghai 200030, China
    b Research Institute of Chemical Technology, East China University of Science and
    Technology, Shanghai 200237, China
    c Department of Environment Engineering, Donghua University, Shanghai 200051, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-08-28 Published:2003-08-28
  • Contact: ZHANG Xu

摘要: Absorption rate of CO2 into aqueous solution of N-methyldiethanolamine (MDEA) blended with
di-ethanolamine (DEA) and piperazine (PZ) was studied and a kinetic model was established.
It is shown thathomogeneous activation mechanism could explain this absorption process. The
absorption rate coefficients of car-bon dioxide into MDEA aqueous solution blended with
DEA, PZ or DEA+PZ were compared with each other. Theresults demonstrated that the different
activation effect of DEA, PZ and DEA+PZ on the carbon dioxide absorptioncomes from the
difference in CO2 combination rate, transport of PZ and DEA to MDEA and the regeneration
rateof PZ and DEA.

关键词: absorption;kinetics;N-methyldiethanolamine;piperazine;diethanolamine

Abstract: Absorption rate of CO2 into aqueous solution of N-methyldiethanolamine (MDEA) blended with
di-ethanolamine (DEA) and piperazine (PZ) was studied and a kinetic model was established.
It is shown thathomogeneous activation mechanism could explain this absorption process. The
absorption rate coefficients of car-bon dioxide into MDEA aqueous solution blended with
DEA, PZ or DEA+PZ were compared with each other. Theresults demonstrated that the different
activation effect of DEA, PZ and DEA+PZ on the carbon dioxide absorptioncomes from the
difference in CO2 combination rate, transport of PZ and DEA to MDEA and the regeneration
rateof PZ and DEA.

Key words: absorption, kinetics, N-methyldiethanolamine, piperazine, diethanolamine