اختلاط گاز در راكتور بستر سيال در دماهاي بالا

A Series of experiments have been conducted to study gas phase hydrodynamic in a fluidized bed reactor. Experimental results show that under bubbling conditions around the gas injection devices, bubbles tend to keep their identity, forming the train of bubbles around the nozzle wall. In this investigation, the gas mixing was studied by measuring the radial and axial dispersion of a gas tracer injected to a hot fluidized bed reactor of FCC particles. In addition, the effect of gas injection devices on tracer gas mixing was examined experimentally.