Bubble column fermenter modeling: A comparison, for pressure effects

✍ Scribed by S. Shioya; N.D.P. Dang; I.J. Dunn

• Publisher: Elsevier Science
• Year: 1978
• Tongue: English
• Weight: 551 KB
• Volume: 33
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(78)85006-4

✦ Synopsis

Two models which describe the oxygen transfer oxygen uptake, and axial mixing in a bubble column fermenter are described Model I includes no pressure effects and can be solved analytically Model II incorporates the influence of hydrostatic pressure on oxygen solubility and gas expansion and must be solved numerically The Itquid phase oxygen concentration profiles as obtained from both models are compared to ascertann for what parametric conditions and for what maximum column hesght Model I is valid The results show that for many situations Model I can approximate the oxygen profiles in a (10 \mathrm{~m}) column within (20 %) As the transfer and uptake rates increase the deviation of Model I can reach (80 %) for a (10 \mathrm{~m}) column