IECM 12.0 beta User Manual > Modules Included with the IECM > Pulverized Coal (PC) Plant > SET PARAMETERS > CO2 Capture, Transport & Storage > 1. Membrane System >

Capture (2-Step w/ Air Sweep)

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Capture parameters for the membrane system are entered on the Capture parameter screen. Its content depends on the System Configuration chosen on the Config screen. This page describes the 2-Step w/ Air Sweep configuration. (The other options are NETL 2-Step w/ Sweep and 2-Stage Cascade.)

The following parameters are shown:

•Membrane Operation Temperature: This is the operation temperature of the membrane system.

•CO2 Permeance (S.T.P.): This is the CO2 permeance.

•CO2/N2 Selectivity (S.T.P.): This is the CO2/N2 selectivity.

•CO2/H2O Selectivity (S.T.P.): This is the CO2/H2O selectivity.

•CO2/O2 Selectivity (S.T.P.): This is the CO2/O2 selectivity.

•CO2/Ar Selectivity (S.T.P.): This is the CO2/Ar selectivity

•Stage Cut @ Crossflow: This is the fraction of feed gas that permeates the cross-flow membrane.

•Stage Cut @ Counterflow: This is the fraction of feed gas that permeates the counter-flow membrane.

•Pressure Drop @ Crossflow: This is the feed-side pressure drop in the cross-flow module. This value is shown for reference only.

•Vacuum Pressure in Cross-Flow Membrane: This is the permeate-side vacuum pressure in the cross-flow module.

•Vacuum Pump Efficiency: This is the efficiency of the permeate-side vacuum pump.

•Added Cooling Duty for CO2 Capture: This is the total amount of cooling water normalized by CO2 product.