Analysis Research Of Operation Optimizing For Oxy-chloridation Reactor

In view of so high gas velocity and multiple baffles of our reactor DC201, this subject is introduced on based on other research achievements in fluidized-bed reactors of oxychlorination, rationally selection of phase-phase-three-zone model Kunii-Levenspiel in consideration of trailing vortex effects on the reaction process. The dynamical equation developed by Gel'Perin is adopted to such a model for oxychlorination of ethylene, in which it is corrected by assessed operating data on reactor in order to determine parameters to be introduced to the kinetic model for more accuracy; the physical constants and transfer parameters in the model equation are calculated from the empirical formal, thereby establishing such a model simulating actual reaction process of operating fluidized-bed multi-reactor system of oxychlorination. Calculations for concentration contributions of materials can be worked out from this model zone by zone, so that the concentrations and conversion graphics of materials along reactor beds could be achieved from it.Corresponding calculations and conclusions can be deduced from the dew point temperature of the resultant gas of oxychlorination reaction and the dew point temperature profile in the reactor, thus developing optimal actions for operations.Further, a cold model test is done so as to simulate the flow condition between gas distributor and 3rd baffle in the simulated fluidizing bed; the root cause for corrosion to cooling pipes and solution to this issue are identified on the basis of analyses on inlet heat transfer and reaction process of fluidized beds.So it plays an important guiding role in actual production management andtechnical improvements.