In this study, the staging effect of the multistage column crystallizer and the effect of the operating parameters on the particle size distribution were experimentally and theoretically investigated.
We suggest that a multistage column experiment, which tests over the whole range of practical flow velocities, should be conducted to help alleviate inadequate hypothesized models.
From an economic viewpoint, the multistage column crystallizer has been developed to replace a cascade of MSMPR crystallizers, which requires a large installation area and high operating cost because some crystallizers are connected in a series.
The calculation results of particle size distribution fairly coincide with the experimental results, which indicates the particle size distribution in the multistage column crystallizer can be roughly predicted by this theoretical model.
Based on this model for the phase equilibrium, a multistage column model representing the desorber was set up.
In the multistage column crystallizer, a narrower particle size distribution was obtained compared to that obtained in the standard column crystallizer.
The CPLC devices containing 1, 2, 4 and 5 multistage columns (each column was divided into 26 stages) have been designed, fabricated and tested; experiments were conducted to test the chromatographic behavior of organic (monocarboxylic) and mineral acids.
An experimental investigation was carried out in order to test the suitability of fluid-dynamic models for the interpretation of data for multistage mixer columns of the RDC and Mixco types.
The periodic control of a continuous multistage distillation column is investigated from the viewpoint of optimality.
The volumetric mass transfer coefficients, kLa, were measured by a steady state method in the first stage of a multistage countercurrent column 20 cm in diameter.
