In order to explore the dynamic behavior and process control of reactor temperature, a modified two-phase dynamic model for gas phase propylene copolymerization in a fluidized bed reactor is developed in which the entrainment of solid particles is considered.
With regard to the dynamic behavior of gas phase, the large-scale column was found to have a relatively small correlation dimension because of the coherent gross circulation flow structure induced by the bias in the bubble formation on the distributor.
These data served as input to model the thermo- and fluid dynamic processes of the gas phase above the bed inside the combustion chamber.
For many situations the dynamic behavior of the gas phase and pellet temperatures was found to have only a minor influence on the dynamics of the remainder of the system and could be neglected.
Since adsorbed species are in a dynamic equilibrium with the gas phase [3, 4], and since the voltage shift is proportional to the number of adsorbed gas species per surface unit, work function variation measurements can be used to monitor the gas concentration.
Dynamic inhibition is observed where the gas phase NH3 and NO concentrations are high, driving rapid NH3 coverage buildup and SCR.
The basic fluid dynamic equations are solved for the gas phase inside the channel using a novel technique based on the solution of the same set of equations everywhere in the system including the porous medium.
The oxidation of ethanal was carried out in gas phase in a dynamic-differential reactor at 300 °C at atmospheric pressure.
Oil-wetting pore throats that are mainly composed of oil-wetting grains also improve the dynamic conditions that favor the migration of gas phase.
In addition, the composition in the bulk gas phase is synchronized with the dynamic reaction events occurring on the surface.
Traveling wave ion mobility enables gas phase electrophoretic separation by creating a dynamic pulse of alternating voltages that result in a "travelling wave" of ions.
