Numerical Analysis of Rotating Zigzag Bed Separator in Cryogenic Condition for Removing Carbon Dioxide

Abstract

Carbon dioxide (CO₂) is a greenhouse gas that occurs naturally, but since the industrial revolution, the quantity of CO₂ in the atmosphere has increased by roughly 50%. This increase in CO₂ changes the earth’s climate. Carbon capture and storage is a significant countermeasure to climate change. Membrane filtering techniques, absorption, adsorption, and cryogenic separation techniques are often used to handle carbon dioxide separation from natural gas. Distillation columns are sophisticated pieces of equipment used to separate mixtures of liquids and gases. A major difficulty with distillation columns is the collection of pollutants on the column’s surfaces, which can diminish the separation process’s efficiency. The objective of this study is to investigate the rotating separator in cryogenic conditions by using computational methods. The design of RZB was simulated in transient-state, multiphase Eulerian model with the renormalization group (RNG) k − ε model equations with standard wall function. The simulation shows how both phases of cryogenic temperatures had an impact. The separation effectiveness was strongly impacted by the cryogenic temperature. Results of methane and carbon dioxide show 97% separations in liquid outlets and gas outlets.