Korean Journal of Chemical Engineering

The Korean Institute of Chemical Engineers (한국화학공학회)
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Numerical Simulation of the Effects of the Design Feature of a Cyclone and the Inlet Flow Velocity on the Separation of $CO_2$ Particles from a $CO_2$-$COF_2$ Mixture

  • Park, Young-Geun (Samsung Electro Mechanics) ;
  • Yun, Chang-Yeon (School of Chemical Engineering, Institute of Chemical Processes, Seoul National University) ;
  • Yi, Jong-Heop (School of Chemical Engineering, Institute of Chemical Processes, Seoul National University) ;
  • Kim, Hong-Gon (Reaction Media Research Center, Korea Institute of Science and Technology)
  • Published : 2005.09.30
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Abstract

In synthesizing $COF_2$ from CO, a considerable amount of $CO_2$ is produced. A method of solidifying $CO_2$ at low temperature and separating $CO_2$ particles from the $COF_2$ gas using a cyclone was designed and the separation efficiency according to the cyclone feature was studied. Optimal sizing and operation conditions of the cyclone were investigated by reviewing the flow velocity profile and the particle trajectory using a numerical analysis with computational fluid dynamics (CFD). The effects of the inlet flow velocity and the ratio of the cyclone diameter to the cone length (D/L) on the recovery efficiency were estimated. Results revealed that the separation efficiency increases with an increase in the ratio of D/L and a decrease in the cyclone size. The recovery efficiency of $CO_2$ increases with the increase in the inlet flow velocity. Based on these results, we could propose a concept and methodology to design the optimal features and sizing of a cyclone suitable for separating solid $CO_2$ from gaseous $COF_2$ at low temperature.

Keywords

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