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

Purification

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Inputs for the membrane system's purification unit are entered on the Purification parameter screen. This screen is only shown in the 2-Step w/ Air Sweep configuration.

The following parameters are shown, depending on the purity selected on the Config screen:

•CO2 Recovery Rate: This parameter is shown for reference only in the Low Purity configuration. In the ~95% Purity and 99.99% Purity configurations, the minimum, maximum and actual CO2 recovery rates are shown below this parameter. The actual recovery rate will be different from the specified rate if the specified rate is out of range.

•CO2 Product Purity: This parameter is shown for reference only in the Low Purity and 99.99% Purity configurations. In the ~95% Purity configuration, the minimum, maximum and actual purity are shown below this parameter. The actual purity will be different from the specified purity if the specified purity is out of range.

•CO2 Product Pressure: The product CO2 must be separated from the water vapor (dried) and compressed to liquid form in order to transport it over long distances. The multi-stage compression unit with inter-stage cooling and drying yields a final CO2 product at the nominal pressure of 2000 psig. This area is a function of the CO2 flow rate.

•CO2 Compressor Efficiency: This is the compressor efficiency.

•Unit CPU Energy: This is the electrical energy required to purify a unit mass of CO2 product stream.

•CPU Energy: This is the total energy required to purify the CO2 product.