Influence of process variables on foaming ability of surfactants: Experimental study and dimensional analysis

By applying the dimensional analysis approach to a lab-scale stirred tank process, influence of process parameters on foamability three model surfactants: SLES, Tween 20 and Brij L23 is investigated modelled. For validation law, theoretical complemented with an experimental work varying such as agitator rotational speed rate (N), mixing time (tm) bottom clearance (Cb). The foam expansion surfactant solutions correlated success two dimensionless numbers: Reynolds number number. observed mainly governing amount formed foam. A clear difference between intermediate flow regime (Re < 105) turbulent one > leading different law for each regime. Master curves are finally drawn can be used helping predict final volumes in studied domain according both numbers.