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For deep-shaft systems the height-to-diameter ratio may be increased up to 100.(a) True(b) FalseI got this question in my homework.This intriguing question originated from Bioreactor Configurations topic in portion Reactor Engineering of Bioprocess Engineering

Answer»

Right answer is (a) True

For explanation I WOULD say: Large airlift reactors with capacities of thousands of CUBIC metres have been constructed. Tall internal-loop AIRLIFTS built underground are known as deep- shaft reactors; very high hydrostatic PRESSURE at the bottom of these vessels considerably improves gas-liquid mass-transfer. The height of airlift reactors is typically about 10 times the diameter; for deep-shaft systems the height-to-diameter RATIO may be increased up to 100.


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