Catalytic semipermeable membrane - challenge and possibilities

• Autorzy: Noworyta A.
• Języki publikacji: EN

Abstrakty

EN

Equations describing a multi-phase bioreactor with a catalytic membrane located on the boundary of phases, of which one is a substrate reservoir, are formulated. A model analysis of the process was carried out and the effect of main operating parameters of such a reactor, i.e. the catalytic layer thickness and the coefficients of diffusion mass transport in both phases, was determined. Two periods with different methods of supplying the catalytic layer can be distinguished in the process. There is also a characteristic thickness of the catalyst layer and when it is exceeded the process duration is no longer shortened although not always full substrate conversion from the supply stream has a place. It is recommended to apply thin layers, because then the catalyst activity is fully used. The analyse of the influence of mass transfer showed that substrate mass transfer in acceptor phase to the catalyst layer has a slight effect on the process rate when the intensification of its transfer in donor phase could have a significance influence on process rate.

Słowa kluczowe

EN

biocatalyst layer; catalytic membrane; process modelling; multiphase reactor

PL

biokatalizator; błona katalityczna; modelowanie procesów; reaktor wielofazowy

• Wydawca: Nałęcz Institute of Biocybernetics and Biomedical Engineering of the Polish Academy of Sciences ; Elsevier
• Czasopismo: Biocybernetics and Biomedical Engineering
• Rocznik: 2008
• Tom: Vol. 28, no. 2
• Strony: 35--47
• Opis fizyczny: Bibliogr. 11 poz., rys., tab., wykr.

Twórcy

autor

Noworyta A.

• Wrocław University of Technology, Division of Chemical and Biochemical Processes, ul. Norwida 4/6, 50-373 Wrocław, Poland,

Bibliografia

• 1. Bramucci M.G., Nagarajan V.: Industrial wastewater bioreactors: sources of novel microorganisms for biotechnology, TIBTECH, 2000, 18, 501-505.
• 2. Linko Y.-Y. et al.: Biodegradable products by lipase biocatalysis, J. Biotechnol. 1998, 66, 41-50.
• 3. Lee K.K.B. et al.: Terpene ester production in a solvent phase using a reverse micelle-encapsulated lipase, Enzyme Microb. Technol. 1998, 23, 253-260.
• 4. Shimada Y. et al.: Enzymatic alcoholysis for biodiesel fuel production and application of the reaction to oil processing, J. Mol. Catal. B: Enzymatic 2002, 17, 133-142.
• 5. Giorno L. , Drioli E.: Biocatalytic membrane reactors: applications and perspectives, TIBTECH 2000, 18, 339-349.
• 6. Trusek-Holownia A.: Membrane contactors, in: A. Noworyta, A. Trusek-Holownia, (Eds.) Membrane separations, 2001, Argi, Wroclaw, Poland, 215-235.
• 7. Trusek-Holownia A., Noworyta A.: Catalytic membrane preparation for enzymatic hydrolysis reactions carried out in the membrane phase contactor, Desalination 2002, 144, 427-432.
• 8. Trusek-Holownia A., Noworyta A.: A catalytic membrane for hydrolysis reaction carried out in the two-phase system - Process modeling. J. Membrane Sci. 2005, 259, 85-90.
• 9. Noworyta A., Kozioł A.: Model of catalytic membrane for the reaction carried out in biphase system, Inz. Apar. Chem. 2002, 3s, 110-111.
• 10. Trusek-Holownia A.: Process of esters hydrolysis in enzyme layer immobilized on polymeric membrane, Conference proceedings of First International Symposium on Process Intensification and Miniaturisation, Newcastle 2003.
• 11. Trusek-Holownia A., Noworyta A.: Mass transfer in the membrane phase contactor with an enzyme gel layer immobilized on membrane surface, Desalination 2004, 162, 335-342.