Packed-Bed Adsorption: Oper. Conds Tab

PBAdsorptionOperConds.jpg
Variable Definitions, Ranges and Default Values

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

 

Adsorbed?
Check this box to specify a binding percentage for the corresponding component.

No

Yes/No

Binding %
The adsorbed amount of the corresponding component, expressed as percentage of the component’s mass in the feed stream.

0.0

0-100

Overall Binding Efficiency (%)
The overall binding efficiency of the bed.

0.0

0-100

Number of Units in Simultaneous Operation
The number of units that operate in parallel.

1

Positive

Breakthrough Time (min)
The actual duration of loading (per cycle).

120.0

Positive

Regeneration Time (min)
The actual duration of regeneration (per cycle).

60.0

Positive

Regeneration Solvent Inlet Stream
Indicates the input port that is connected to the regeneration inlet stream. If an input stream is already present at the selected port, then the button next to the selection is active. Click on the button to bring up the attached stream’s simulation dialog in order to provide the composition of the material being charged.

<None>

Dedicated Input Port

Regeneration Solvent per Bed Volume (g/L)
The required amount of regeneration solvent expressed as mass per volume of bed.

500.0

Positive

Regeneration Solvent per Mass Adsorbate (kg/kg)
The required amount of regeneration solvent expressed as mass per mass of adsorbate.

5.0

Positive

Power Type
Indicates the power type that is used by the operation. Click on the list box to bring up a list of available power types in order to select one.

<Std Power>

Any Power Type

Fan/Pump Efficiency (%)
The efficiency of the fan/pump employed during the operation.

80

0-100

Power (kW)
The power consumed for the operation (per cycle).

0.0

Positive

Linear Velocity (cm/h)
The linear velocity of gas in the bed.

0.0

Positive

Symbol Key: User-specified value (always input); Calculated value (always output); Sometimes input, sometimes output

Specification Choices / Comments

The following list describes the available specification choices in this tab; for more details on how these are implemented, see Packed-Bed Adsorption: Modeling Calculations.

Component Binding Data...

Specify the components that are adsorbed by checking the ‘Adsorbed?’ box and specify the adsorption (binding) percentage for these components.

Regeneration Solvent Requirements...

You may specify either the Regeneration Solvent Per Bed Volume or the Regeneration Solvent Per Mass Adsorbate.