Fig. 7

Conversion of glycerol, TA purity, TA selectivity and bottom column temperature at various pressures (1 rectifying stage, 30 reactive stages, 1 stripping stage, an acetic acid to glycerol molar feed ratio of 3:1 and a reflux ratio of 3:1).
Conversion of glycerol, TA purity, TA selectivity and bottom column temperature at various pressures (1 rectifying stage, 30 reactive stages, 1 stripping stage, an acetic acid to glycerol molar feed ratio of 3:1 and a reflux ratio of 3:1).