REAL GAS EFFECTS ON NON-EQUILIBRIUM CONDENSATION OF CARBON DIOXIDE CONTRIBUTING TO CARBON CAPTURE AND STORAGE

  • Chuang Wen
  • , Yan Yang
  • , Xiaowei Zhu
  • , Jens Honore Walther
  • , Hongbing Ding
  • , Yuqing Feng
  • , Yuying Yan*
  • *Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

In the present study, we propose a new concept to capture carbon dioxide (CO2) from gas industries using a supersonic separator. We develop and validate a computational fluid dynamics model to evaluate the effect of a real gas model on the non-equilibrium condensation CO2 in high-pressure supersonic flows. The results show that the ideal gas equation of state under-predicts the CO2 condensation with the predicted liquid fraction of approximately 15% of the total mass. The Redlich-Kwong equation of state incorporating with the condensing flow model shifts the onset of the CO2 nucleation process upwards to the nozzle throat, while predicting a liquid fraction up to 28% of the total mass. The study indicates that the CO2 condensation in supersonic flows provides an efficient way to mitigate the CO2 emissions from gas industries.

Original languageEnglish
JournalEnergy Proceedings
Volume5
StatePublished - 2019
Externally publishedYes
Event11th International Conference on Applied Energy, ICAE 2019 - Västerås, Sweden
Duration: 12 Aug 201915 Aug 2019

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • carbon capture and storage
  • carbon dioxide separation
  • non-equilibrium condensation
  • real gas

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