Crystallizer Main Window

The crystallizer models the transformation of a supersaturated solution into a solid/liquid mixture.

Usage

Crystal Shape Factor

The shape factor defaults to 1.0 which indicates cubic crystals. A value of $image\crys01.gif$ indicates spherical crystals.

Solute

Select the component for the dissolved component from the drop down list. Components are defined in the Component Selection Main Window.

Solvent

Select the predominant component of the solvent from the drop down list.

Thermodynamic System

Select the Thermodynamic Method Set to be used by this unit operation.

Calculation Mode

Press this button to open the Crystallizer Calculation Mode Window where you must specify whether the unit will operate in Design or Rating mode and supply the relevant parameters.

Growth and Nucleation Rates

The rate constants for the Nucleation and Growth Rate equations must be supplied in the Crystallizer Growth and Nucleation Rates Window which is opened by pressing this button.

Operating Conditions

By default, the unit will operate at the mixed feed temperature and pressure with a zero recirculation rate. These may be changed in the Crystallizer Operating Conditions Window which is opened by pressing this button.

Products

The products connected to the overhead and bottoms ports on the Process Flow Diagram (PFD) are initially assumed to be the required overhead and bottoms product. They may be changed in the Crystallizer Products Window which is opened by pressing this button.

Print Options

Press this button to open the Print Options Window where you may specify that Crystal Size Distribution should be printed on the output.

How to get to this window

The Crystallizer Main Window is accessed by double clicking on the crystallizer icon on the process flow diagram.

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