phase that is moving upward transfers momentum to the slurry phase that is either stagnant or moving slower than the gas. Therefore, the hydrodynamics of SBCRs are controlled mainly by the gas flow. It has been reported that the operating conditions and design as well as the geometry of the column strongly affect the hydrodynamics of the SBCRs. References Sources External links Modeling of mass transfer characteristics of bubble column reactor with surfactant present Chemical reactors