IECM 14.0 beta User Manual > Modules Included with the IECM > Low-Carbon Hydrogen Production & Transport > SET PARAMETERS > Flue Gas CO2 Capture > MEA >

Capture cont.

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The Capture cont. parameter screen is a continuation of the Capture screen, which provides inputs for the MEA-based absorber and regenerator. The following parameters are available:

•Regenerator Heat Requirement: This is the total amount of heat energy required in the reboiler for sorbent regeneration. This parameter is read-only and is shown for reference.

•Rich Solution Pumping Pres.: This parameter defines the pressure increase of the rich solvent solution. This parameter is read-only and is shown for reference.

•Lean Solution Pumping Pres.: This parameter defines the pressure increase of the lean solvent solution. This parameter is read-only and is shown for reference.

•Pump Efficiency: Pumps in the MEA unit are used to recirculate the MEA solution in the system. Pump Efficiency measures how effectively the pump converts mechanical energy from the shaft into fluid pressure. An ideal pump would be reversable, and adiabatic means 100% efficient. Real pumps have turbulence, internal fluid friction, and recirculation losses.

•Pump Driver Efficiency: A driver is the electric motor used for spinning the pump shaft. Its efficiency determines how effectively the motor converts electric energy into mechanical shaft energy.

•Percent Solids in Reclaimer Waste: This is the amount of solids typically present in the reclaimer waste.

•Flue Gas CO2 Capture Cooling Duty: This is the total amount of cooling water normalized by the CO2 product. This parameter is read-only and is shown for reference.

•Number of Absorber Intercoolers: This number indicates how many intercoolers are needed for absorbers to reject reaction heat, lower the solution temperature, and enhance CO2 removal efficiency. An absorber intercooler is only used for a CO2 capture rate of 99%.