GPSA Ch. 21
| Parameter | Recommendation |
|---|---|
| Slip-stream | 10–20% minimum |
| Micron rating | 10 μm nominal |
| Carbon EBCT | 10–20 minutes |
| Filter ΔP change | At 15–20 psi |
Mechanical Filter Sizing:
Where Qcirc = total amine circulation rate (GPM), slip-stream percentage determines the fraction routed through the filter system. Filter area sized based on maximum allowable face velocity for the selected filter type.
Carbon Bed Volume:
Where EBCT = empty bed contact time (minutes). The carbon bed is sized to provide adequate residence time for adsorption of dissolved surfactants, degradation products, and heat-stable salts.
Filter Arrangement: Mechanical filter is installed upstream of the carbon bed to prevent particulate loading and premature carbon fouling. The slip-stream is typically taken from the lean amine return downstream of the lean/rich exchanger.
Understand amine filtration design, mechanical filter selection, and activated carbon bed sizing principles
It sizes mechanical filters and activated carbon beds for amine system filtration, calculating filter area, cartridge count, carbon bed volume, EBCT, and annual operating costs.
The calculator follows GPSA Chapter 21 methodology for amine filtration system sizing.
EBCT (Empty Bed Contact Time) is the time the amine solution spends in contact with the activated carbon bed, which is critical for effective contaminant removal.