Mathematical modeling of ethanol production by immobilizedZymomonas mobilis in a packed bed fermenter
- 20 February 1987
- journal article
- research article
- Published by Wiley in Biotechnology & Bioengineering
- Vol. 29 (3), 370-382
- https://doi.org/10.1002/bit.260290314
Abstract
A mathematical model which describes ethanol production in a packed bed fermenter containing. Zymomonas mobilis entrapped in small spheres of calcium alginate within a packed bed fermenter has been developed. The equations combine simultaneous diffusion and reaction as well as a complex flow pattern to calculate glucose and ethanol profiles in the column type reactor. As part of the study, diffusivity values for glucose and ethanol in cell‐loaded calcium alginate were determined. Also a freecell kinetic expression for Z. mobilis at 33°C and ph 6.0 was developed. Comparison of the model with actual experimental results were made showing average deviations of ca. 30–40%.This publication has 5 references indexed in Scilit:
- Pore size and properties of spherical Ca-alginate biocatalystsApplied Microbiology and Biotechnology, 1983
- Ethanol production by immobilizedSaccharomyces cerevisiae,Saccharomyces uvarum, andZymomonas mobilisBiotechnology & Bioengineering, 1982
- Fermentation pattern of sucrose to ethanol conversions byZymomonas mobilisBiotechnology & Bioengineering, 1981
- Effectiveness Factor for Porous Catalysts. Langmuir-Hinshelwood Kinetic ExpressionsIndustrial & Engineering Chemistry Fundamentals, 1965
- Classical thermodynamics of non-electrolyte solutions, H. C. Van Ness, Pergamon Press, New York(1964)AIChE Journal, 1965