What are the effects of the different areas of the airlift reactor on the homogenization process?
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The different areas of the airlift reactor have significant effects on the homogenization process. The presence of a solid phase in the gas-liquid system shortens the homogenization time, especially for lower riser superficial gas velocity (uSGR) and deflector clearance, while reducing the mass transfer coefficient . The use of a helical porous sieve plate in the reactor helps break up large rising bubbles into small bubbles, effectively preventing bubble coalescence and increasing the gas holdup and volumetric mass transfer coefficient . In an industrial-scale center-rising airlift reactor (CRALR), the available jet hole area of the gas distributor gradually increases with the superficial gas velocity, affecting the flow regime and total gas holdup. Gas-liquid oscillations in the gas distributor with a large free gas volume contribute to the transition from a homogeneous regime to a heterogeneous regime .
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