Enhancement of three-phase kinetic studies of complex reaction systems by semibatch reactor technology

• Authors: T. Salmi , D. Murzin , P. Mäki-Arvela , J. Wärnå , K. Eränen , J.-P. Mikkola , A. Denecheau , K. Alho
• Languages of publication: EN

Abstracts

EN

A semibatch reactor concept was proposed for the determination of the kinetics in complex catalytic liquid and gas-liquid systems with reactions of highly varying rates. The method is based on continuous removal of liquid phase from the reactor, while the catalyst remains inside the reactor. The concept was demonstrated by catalytic hydrogenation of citral on Ni catalyst. The primary product (citronellal) is formed very rapidly, while the secondary (citronellol) and tertiary (3,7-dimethyloctanol) products appear much more slowly. With the proposed semibatch concept, the formation of the ultimate products was considerably accelerated and all of the rate parameters were successfully estimated by nonlinear regression analysis. The proposed approach can be extended to fixed beds with recycling as demonstrated by computer simulations.

• Publisher: Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
• Journal: Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia
• Year: 2008
• Volume: 63
• Pages: 257-270

Dates

published

1 - 1 - 2008

online

5 - 3 - 2010

Contributors

author

T. Salmi

• Åbo Akademi, Process Chemistry Centre, FI-20500 Turku/Åbo, Finland

author

D. Murzin

• Åbo Akademi, Process Chemistry Centre, FI-20500 Turku/Åbo, Finland

author

P. Mäki-Arvela

• Åbo Akademi, Process Chemistry Centre, FI-20500 Turku/Åbo, Finland

author

J. Wärnå

• Åbo Akademi, Process Chemistry Centre, FI-20500 Turku/Åbo, Finland

author

K. Eränen

• Åbo Akademi, Process Chemistry Centre, FI-20500 Turku/Åbo, Finland

author

J.-P. Mikkola

• Åbo Akademi, Process Chemistry Centre, FI-20500 Turku/Åbo, Finland

author

A. Denecheau

• Åbo Akademi, Process Chemistry Centre, FI-20500 Turku/Åbo, Finland

author

K. Alho

• Åbo Akademi, Process Chemistry Centre, FI-20500 Turku/Åbo, Finland

References

• J. Aumo, J. Wärnå, T. Salmi, D. Yu. Murzin, Chemical Engineering Science, 61, 814 (2006).
• H. Haario, Modest, Profmath Oy.
• D. Murzin, T. Salmi, Catalytic Kinetics, Elsevier 2005.
• P. Mäki-Arvela, J. Hajek, T. Salmi, D. Yu. Murzin, Applied Catalysis A: General, 292, 1 (2005).
• P. Mäki-Arvela, L.-P. Tiainen, A. Kalantar Neyestanaki, R. Sjöholm, T. -K. Rantakylä, E. Laine, T. Salmi, D. Yu. Murzin, Applied Catalysis A: General, 237, 181 (2002).
• P. Mäki-Arvela, L. -P. Tiainen, R. Gil, T. Salmi, Kinetics of the hydrogenation of citral over supported Ni catalyst, Studies in Surface Science and Catalysis, H. U. Blaser, A. Baiker, R. Prins (Eds.), Vol. 108, p. 273, Elsevier, Amsterdam 1997.

Identifiers

DOI

10.2478/v10063-009-0014-2