Modeling CO2 absorption and desorption by aqueous monoethanolamine solution with Aspen rate-based model

Ying Zhang, Chau Chyun Chen

Research output: Contribution to journalConference article

56 Scopus citations

Abstract

Nineteen data sets of CO2 absorption by aqueous monoethanolamine solution (0.3g/g monoethanolamine in water) from the recent pilot plant studies at the University of Kaiserslautern have been simulated with Aspen rate-based model. The simulation study was performed with both the rigorous rate-based model and the traditional equilibriumstage model. The results show the rate-based model yields reasonable predictions on all key performance measurements including CO2 removal percentage in the absorber, temperature and CO2 concentration profiles in the absorber and the desorber, and the desorber reboiler duty. In contrast, the equilibrium-stage model fails to reliably predict these key performance variables.

Original languageEnglish
Pages (from-to)1584-1596
Number of pages13
JournalEnergy Procedia
Volume37
DOIs
StatePublished - 2013
Event11th International Conference on Greenhouse Gas Control Technologies, GHGT 2012 - Kyoto, Japan
Duration: Nov 18 2012Nov 22 2012

Keywords

  • Aqueous monoethanolamine solution
  • Equilibrium-stage model
  • Process simulation
  • Rate-based model

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