Mass transfer prediction in a mechanically stirred gas-liquid reactor containing solid particles

0541914 - ÚH 2022 RIV DE eng J - Journal Article
Kracík, T. - Moucha, T. - Petříček, Radim - Tamaškovičová, D.
Mass transfer prediction in a mechanically stirred gas-liquid reactor containing solid particles.
Chemical Engineering & Technology. Roč. 44, č. 4 (2021), s. 752-760. ISSN 0930-7516. E-ISSN 1521-4125
Institutional support: RVO:67985874
Keywords : gas-liquid-solid system * mass transfer * mass transfer coefficient * prediction
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 2.215, year: 2021
Method of publishing: Limited access
https://onlinelibrary.wiley.com/doi/full/10.1002/ceat.202000532

Microorganisms are used in various fermentation processes for the production of biochemicals and food. These types of processes take place predominantly in mechanically agitated vessels. An important transport characteristic is the volumetric mass transfer coefficient kLa. Many correlations are available in the literature to estimate parameters in a gas-liquid system. However, three-phase systems are not sufficiently described. The experiments were carried out under laboratory conditions in a single-impeller mechanically agitated vessel with an internal diameter of 0.29 m. The solid phase was either cellulose, with two different particle sizes, or glass beads. An updated correlation is proposed that could be adopted in the design and scale-up of agitated devices operating in the presence of solid particles.
Permanent Link: http://hdl.handle.net/11104/0319411