Projekt

• Fundamental analysis of carbon dioxide absorption from biogas in rotating packed beds

Partner

• Lodz University of Technology
• Technical University of Berlin

Popis

The rotating packed bed is a technology designed to intensify processes applicable not only to CO₂ capture but also for distillation and mixing of substances. The principle of this device is to create a large interfacial area between fluids, typically a liquid and a gas. Figure 1 below illustrates a typical counter-current configuration of the rotating packed bed, where liquid is introduced onto the inner surface of a rotating porous packing, through which it flows, atomizes into droplets, and forms a liquid film and other liquid structures. Upon exiting the packing, the ejected droplets are propelled into the outer cavity before impinging on the casing. In this section, an air inlet is also located, allowing air to flow through the packing in a counter-current direction to the liquid due to pressure differences.

Our research focuses on investigating the hydrodynamics (Brno) within the entire device in conjunction with chemical processes (Lodz, Berlin), aimed at developing a system applicable for biogas upgrading – specifically, the removal of CO₂ from a methane mixture. Due to a unique transparent model of rotating packed bed, designed during a previous international project (GF21-45227L), we can use visualization techniques (such as a high-speed camera and high-resolution camera) and laser-based methods (phase Doppler anemometry) to characterize the hydrodynamics, as shown in Figure 2. Combined with computational fluid dynamics, this approach provides a comprehensive understanding of liquid and gas behaviour throughout the entire apparatus.

 

Contakt

prof. Ing. Jan Jedelský, Ph.D.
Energy Institute, FME BUT
e-mail: jedelsky@fme.vutbr.cz
tel.: +420 541 143 266