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We present a novel \({\text {CO}}_2\) capture system for industrial effluents based on heterogeneous \({\text {CO}}_2\) nucleation on solid particles exploiting the temperature decrease in a gaseous supersonic flow. The particles are subsequently separated from the gas using a centered expansion, which causes a sudden gas flow deviation while preventing a temperature increase of the flow. The paper presents the models used to simulate and optimize these flows along with typical results for an industrial-scale facility. Specifically, we will describe the parameters that promote rapid nucleation and subsequent particle growth, as well as those favouring gas-particle separation over the shortest distances.

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Using Supersonic Flows for Separating Carbon Dioxide from Industrial Gaseous Effluents

  • 会议论文

  • 发表日期：

    2025年

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  • M. Eldakamawy,
  • D. Chartrand,
  • A. Gagné,
  • G. Vézina,
  • M. Brouillette

摘要

We present a novel \({\text {CO}}_2\) capture system for industrial effluents based on heterogeneous \({\text {CO}}_2\) nucleation on solid particles exploiting the temperature decrease in a gaseous supersonic flow. The particles are subsequently separated from the gas using a centered expansion, which causes a sudden gas flow deviation while preventing a temperature increase of the flow. The paper presents the models used to simulate and optimize these flows along with typical results for an industrial-scale facility. Specifically, we will describe the parameters that promote rapid nucleation and subsequent particle growth, as well as those favouring gas-particle separation over the shortest distances.