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Hydrodynamics in a 76mm i.d., 10.2m high circulating fluidized bed (CFB) riser and a 76mm i.d., 5.8m high CFB downer were studied for superficial gas velocities ranging from 2 to 5m/s and solid circulation rates up to 100kg/(m2s). Solid holdup, particle velocity and solid flux profiles in the radial and axial positions were presented. Under these operating conditions, axial solid holdup profiles in...
Catalytic ozone decomposition reaction was used to study the performance of a 76mm i.d. and 5.8m high gas–solid circulating fluidized bed (CFB) downer reactor. Optical fiber probes and an ultraviolet (UV) ozone analyzer were used to obtain comprehensive information about local solids holdup and ozone concentration profiles at different axial and radial positions at superficial gas velocity of 2–5m/s...
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