TABLE 10-1 Advanced Coal-Based Power Systems Supported by DOE

Technology (target year for commercial design)

Design Efficiency (percent)

Coal Conversion Components

Power Generation Components

Particulate Control System

SO2 Control System

NOx Control System

New pulverized coal (commercial baseline)

38-42

Supercritical boiler

3,500 to 4,500 psi steam turbine

ESP or fabric filter

Wet lime or limestone FGD

Low NOx burners + SCR

GROUP 1 SYSTEMS

LEBS (2000)

42

Supercritical boiler

4,500 psi steam turbine

Advanced flue gas cleanup + combustion controlsa

PFBC-1 (2003)

-40

Bubbling and circulating bed PFBC units

1,800 psi steam turbine + gas turbine

Cyclones + fabric filter

In-bed limestone or dolomite

Combustion controls

IGCC-1 (1997)

-40

O2-blown entrained- bed gasifiers

2350°F gas turbine +HRSG/turbine

Cold gas quenching

Cold gas H2S absorption

Cold gas cleanup + steam injection

GROUP 2 SYSTEMS

EFCC (1997)

45

Slagging combustor + 2300°F heat exchanger

2350°F gas turbine + HRSG/turbine

Fabric filter

Wet FGD

Combustion controls (+ SCR if needed)

PFBC-2 (2005)

45

Circulating PFBC + coal pyrolyzer

2350°F gas turbine + 2,400 psi steam turbine

Hot gas filtration

In-bed limestone or dolomite

Combustion controls (+ SCR if needed)

IGCC-2 (2002)

45

Oxygen- or air-blown fluidized- bed gasifier

2350°F or 2500+ ºF gas turbine + HRSG/turbine

Hot gas filtration

Hot gas desulfurization + in-bed limestone (optional)

Combustion controls(+ SCR if needed)



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