General aspects Flow regimes, liquid holdup, two-phase pressure drop, and wetting efficiency

1 General aspects Flow regimes, liquid holdup, two-phase pressure drop, and wetting efficiency 

Two-phase downflow fixed-bed reactors operate in a variety of flow r )mes ranging from gas-continuous to liquid-continuous patterns. They usually fall into two broad categories referred to as low and high interaction r )mes. The low interaction r )me (trickling flow) manifests at low gas and liquid flow rates and is characterized by a weak gas-liquid interfacial 

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