Gas phase hold up in gas-liquid cocurrent upflow packed bed reactors at low Reynold's number

Abstract

Experimental measurements of gas phase hold up in two phase gas–liquid cocurrent upflow packed bed reactors have been made at very low gas ((NRe)g < 55) as well as liquid ((NRe)l < 8) velocities using air–water systems with two different types of packing materials. The gas hold up values thus obtained are correlated in terms of Reg, Rel and ɛ, the voidage.