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Styrene Hydrogenation in Bench and Pilot Plant Trickle Bed Reactor.
Tukač, V. ; Hanika, Jiří ; Chyba, V. ; Šimíčková, M. ; Lederer, J. ; Kolena, J. ; Šimek, J. ; Jiřičný, Vladimír ; Staněk, Vladimír ; Stavárek, Petr
Paper brings data on styrene hydrogenation using palladium catalyst measured using two trickle bed reactors of different dimensions. The data were applied to formulation and solution dynamic models of reactor under forced periodic feed rate modulation of reaction mixture. Adequate agreement between model solution and pilot plant adiabatic trickle bed reactor has been confirmed.
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Transition Events in Trickle Bed Reactor under Conditions of Steady State and Pulse Regime. Part 2
Jiřičný, Vladimír ; Staněk, Vladimír ; Hanika, Jiří ; Vychodilová, Hana ; Stavárek, Petr ; Vlček, Dalibor ; Karfík, David ; Tukač, V. ; Lederer, J. ; Chyba, V.
Transition events in trickle bed reactor under conditions of steady state and pulse regime has been studied experimentally in pilot plant trickle bed reactor at elevated pressures 2 and 5bar and temperatures 20 and 50oC. From hydrodynamic dependencies of pressure drops on gas and liquid velocities the transients lines between film and pulse regime have been determined. The effects of various variables flow rates, temperature, pressure, length of period and spilt have been verified with respect to pressure drop and pressure drop profile along trickle bed reactor operated in pulse regime.
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Selectivity of Wet Oxidation in Trickle Bed Reactor under Periodically Modulated Feed Rate
Chyba, V. ; Tukač, V. ; Hanika, Jiří
Wet air oxidation of phenol in water solution using active carbon catalyst pellets was used as a model reaction of the process. Experiments were made using bench scale stainless steal trickle bed reactor at temperature 125 ů 170 oC and pressure 1 ů 7 MPa intervals. The higher reactor throughput at periodically modulated liquid feed rate in comparison to the continuous reactor regime was observed. The optimal reactor control parameters ůperiod length and split- were determined in the study.
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