This tab appears on the interface dialog of the following operation:
● Packed Bed Adsorption (PBA) Column Loading
The following table shows a brief description of the variables appearing in this tab. The table also displays their default values and their generally acceptable range:
Variable |
Default Value |
Range |
|
||
○ Binding Capacity (g/L) |
20.0 |
Positive |
● Capacity Utilization (%) |
100.0 |
0 - 100 |
◙ Loading Time (min) |
30.0 |
Positive |
◙ Linear Velocity (cm/h) |
300.0 |
Positive |
◙ Absolute Flowrate (L/h) |
0.0 |
Positive |
◙ Relative Flowrate (BV/min) |
30.0 |
Positive |
◙ Empty Bed Contact Time (h) |
0.0 |
Positive |
● Absolute Loading Volume (per Cycle, per Unit) (L) |
0.0 |
Positive |
● Relative Loading Volume (per Cycle, per Unit) (BV) |
0.0 |
Positive |
○ Retained % |
0.0 |
0 – 100 |
● Retained Amt (kg) |
0.0 |
Positive |
○ Ignore in Sizing? |
No |
Yes/No |
○ Outlet Stream Name |
Out #8 |
Any Output Port |
Symbol Key: ○ User-specified value (always input); ● Calculated value (always output); ◙ Sometimes input, sometimes output
The following list describes the available specification choices in this tab; for more details on how these are implemented, see PBA Column Loading: Modeling Calculations.
•Loading Time Options...
The loading time can be either set by the user or calculated by the program based on the loading flowrate.
•Loading Flowrate Options...
If the loading time is calculated based on loading flowrate, then you can choose among four different options for specifying the loading flowrate: you can specify the feed’s linear velocity, or its volumetric flowrate, or its relative flowrate (in bed volumes) in the bed, or the empty bed contact time (the amount of time it takes for a feed volume of material to flow through an empty bed). Any variable that is not specified will be calculated by the program.