IECM 12.0 beta User Manual > Modules Included with the IECM > Integrated Gasification Combined Cycle (IGCC) Plant > SET PARAMETERS > CO2 Capture, Transport & Storage > 2. Selexol CO2 Capture >

Performance

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Inputs for the performance of the Selexol CO2 capture system are entered on the Performance parameter screen . The following parameters are shown:

•Carbon Dioxide Removal Unit:

•CO2 Removal Efficiency: CO2 removal is specified by the user and is used to determine the solvent makeup flow, capital cost, and operating and maintenance costs.

•H2S Removal Efficiency: H2S is naturally removed with CO2. This parameter specifies the amount that is captured.

•Max Syngas Capacity per Train: Each train contains one absorber vessel that has a maximum flow rate. This parameter determines the maximum flow rate through the vessel.

•Number of Operating Absorbers: This is the total number of operating absorber vessels. The calculated value is determined by comparing the total flow rate of syngas through the Selexol process and the
maximum syngas capacity per train. The value must be an integer.

•Number of Spare Absorbers: This is the total number of spare absorber vessels. It is used primarily to calculate capital costs.

•CO2 Product Compressor Used?: This determines whether a CO2 product compressor will be used.

•Power Requirement: This is the electricity used by the Selexol CO2 Capture System for internal use. It is expressed as a percent of the gross plant capacity.