Chemistry Reference
In-Depth Information
Fig. 31 Influence of working point on the CPF fractionation effect with respect to the molecular
weight (a) and the chemical composition (b) for a copolymer having an initial distribution given
by (
16
). The
stars
represent the values of the sol fraction and the
crosses
the values from the gel
fractions
the dilution effect. However, increasing the amount of extraction agent leads to a
decrease in the polymer amount present in the column and hence in the produced
fraction. In this situation, a compromise between high fractionation effect and the
amount of copolymer in the fractions has to be found.
The next operative parameter, which can be optimized by simulation, is the
cooling temperature at the condenser. This parameter is also optimized by simula-
tions of the CPF column, where a copolymer is fractionated with a feed distribution
