Optimization strategies for amine regeneration process with heat-stable salt removal unit

Jesung Lee, Jonghun Lim, Hyungtae Cho, Junghwan Kim

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


In this study, we simulated an amine regeneration process with heat-stable salts removal unit. We derived the optimal operating conditions considering the flow rate of waste, the removal rate of heat-stable salts, and the loss rate of MDEA (methyl diethanolamine). In the amine regeneration process that absorbs and removes acid gas, heat-stable salt impairs the absorption efficiency of process equipment and amine solution. An ion exchange resin method is to remove heat-stable salts through neutralization by using a strong base solution such as NaOH. The acid gas removal process was established using the Radfrac model, and the equilibrium constant of the reaction was calculated using Gibbs free energy. The removed amine solution is separated and flows to the heat-stable salts remover which is modeled by using the Rstoic model with neutralization reaction. Actual operation data and simulation results were compared and verified, and also a case study was conducted by adjusting the inflow mass of removal unit followed by suggesting optimal conditions.

Original languageEnglish
Pages (from-to)575-580
Number of pages6
JournalApplied Chemistry for Engineering
Issue number5
Publication statusPublished - 2020 Oct

Bibliographical note

Publisher Copyright:
© 2020, Korean Society of Industrial Engineering Chemistry. All rights reserved.

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)


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