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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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Research of Trickle Bed Reactor Hydrodynamics with Conductive Method. Part 1
Jiřičný, Vladimír ; Staněk, Vladimír ; Hanika, Jiří ; Vychodilová, Hana ; Stavárek, Petr ; Vlček, Dalibor ; Karfík, David ; Tukač, V. ; Lederer, J. ; Ondráček, Jakub
The conductive method has been modified for hydrodynamic study in trickle bed reactor. Method for RTD measurements in liquid phase (steady state flow) has been developed and tested in glass laboratory scale TBR. The method for evaluation of experimental data was developed and RTD and liquid hold up calculated. The agreement between experiment and calculated results is good.
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Transition Events in Trickle Bed Reactor under Conditions of Steady State and Pulse Regime
Jiřičný, Vladimír ; Staněk, Vladimír ; Hanika, Jiří ; Lederer, V. ; Ondráček, Jakub ; Vychodilová, Hana ; Šimek, J. ; Křišťál, Jiří ; Stavárek, Petr ; Vlček, Dalibor ; Karfík, David
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.The hydrodynamics maps have been determined in the form pressure drop dependences for wide range of gas and liquid flow rates.
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Characteristics of Two-Phase Gas-Liquid Pulsing Flow in Trickle Bed
Stavárek, Petr ; Vychodilová, Hana ; Staněk, Vladimír ; Jiřičný, Vladimír
Results of the experimental study of two-phase co-current flow in trickle bedare presented.. Observed parameters were material of the bed, physical and chemical properties of liquid phase, flow rates and split value under conditions of pulsing inlet velocity of liquid. Results reflect a possibility of development of an arbitrary pulsing flow of liquid under conditions of constant inlet velocities of both phases. These arbitrary pulsations of liquid flow were observed under conditions of periodic inlet velocities too.
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Transition Phenomena in Trickle Bed Reactor under Steady Stay Gas/liquid Downflow. Part 1
Jiřičný, Vladimír ; Staněk, Vladimír ; Ondráček, Jakub ; Vychodilová, Hana ; Křišťál, Jiří ; Stavárek, Petr ; Vlček, Dalibor ; Karfík, David ; Lederer, J. ; Šimek, J.
Experimental measurement of co current gas/liquid downflow under conditions of steady state. Measurement of the effect of liqud physical properties and type od packing on pressure drop profile along the packed bed layer.
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