Techno-economic comparison of amine regeneration process with heat-stable amine salt reclaiming units

Jonghun Lim, Jesung Lee, Il Moon, Hyungtae Cho, Junghwan Kim

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


Most factories employ an amine gas sweetening process to remove sulfur compounds. During this process, heat-stable amine salt (HSAS) is generated, which reduces process efficiency. Ion exchange resin and electrodialysis reclamation methods are employed for HSAS removal. However, the equipment cost, electricity, water, and raw material consumption of each unit vary according to the amount of HSAS reclaimed; thus, it is necessary to consider the cost. In this study, we compared the techno-economic aspects of the amine regeneration process for individual HSAS reclaiming units, developed process models to predict operation costs, and verified our simulation results by comparing actual operation and design data. The proposed mathematical models can be employed to calculate various costs incurred during amine regeneration with HSAS reclaiming units. The economic crossover point is derived at 36.6111 kg-mol/d by utilizing the models. This enables economically feasible units to be identified based on the amount of HSAS reclaimed.

Original languageEnglish
Pages (from-to)2529-2543
Number of pages15
JournalEnergy Science and Engineering
Issue number12
Publication statusPublished - 2021 Dec

Bibliographical note

Funding Information:
This work was supported by the Korean Institute of Industrial Technology within the framework of the following projects: “Development of AI Platform Technology for Smart Chemical Process” [grant number JH‐21‐0005] and “Development of complex parameter smart analysis modules for color customering” [grant number EH‐21‐0008]

Publisher Copyright:
© 2021 The Authors. Energy Science & Engineering published by the Society of Chemical Industry and John Wiley & Sons Ltd.

All Science Journal Classification (ASJC) codes

  • Safety, Risk, Reliability and Quality
  • Energy(all)


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