Mathematical Modeling of Dispersed CO2 Dissolution in Ionic Liquids: Application to Carbon Capture

Parsa Amin*, Alireza Memarian, Eveliina Repo, Martin Andersson, Seyed Soheil Mansouri, Sohrab Zendehboudi, Nima Rezaei

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

As an example of a carbon capture approach, we have developed 2D CFD model in Comsol Multiphysics in which we investigated CO2 absorption in an ionic liquid ([Bmim][TCM]). Factors such as pressure (1–20 bar), temperature (278–330 K), inlet gas velocity (0.0001–1ms-1), sparger diameter to column diameter ratio (0.1–0.5), and column height to diameter ratio (1–3) were investigated. A quadratic model for absorption behavior (p-value < 0.0001 and R2 0.98) was developed. Four sparger geometries were considered, and the optimal values for column height to diameter and sparger diameter to column diameter were computed. The maximum CO2 concentration was obtained at a pressure of 18.26 bar, temperature of 309.5 K, velocity of 0.825 ms-1, sparger diameter to column diameter of 0.414, and column height to diameter of 2.5.
Original languageEnglish
Article number124486
JournalJournal of Molecular Liquids
Volume402
ISSN0167-7322
DOIs
Publication statusPublished - 2024

Keywords

  • CFD modelling
  • Carbon capture
  • Computer-aided design
  • Ionic liquids
  • Sparging

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