IECM 12.0 beta User Manual > Modules Included with the IECM > Pulverized Coal (PC) Plant > GET RESULTS > CO2 Capture, Transport & Storage >

2. Auxiliary Boiler System

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An auxiliary natural gas-fired boiler can be added to some CCS systems in PC and NGCC plants; the screens for both are described here. When used, the original steam cycle of the power plant remains undisturbed and the net power generation capacity of the power plant is not adversely affected. The auxiliary boiler comes at an additional cost of capital requirement for the boiler (and turbine) and the cost of supplemental fuel. Also, the auxiliary boiler adds to the CO2 and NOx emissions. When an auxiliary boiler is added, an additional process type, Auxiliary Boiler System, is added.