Top of page. Skip to main contents. Skip to main menu. Skip to footer.

IGCC (Integrated coal Gasification Combined Cycle Power Plants) [ Thermal Power Plant ] [ ENERGY ]

  • Linkedin
IGCC

The IGCC is a highly efficient and environmentally friendly next-generation thermal power system achieved through coal gasification.

Air-blown IGCC

Air-blown IGCC systems use air for coal gasification.
First, coal is processed into coal gas in the gasifier, where the air is used as the gasification agent. Coal gas undergoes desulfurization and de-dusting treatment in the gas clean-up unit to comply with the standards for gas turbine fuel and exhaust gas. The “cleaned gas” is supplied to the GTCC facility.
The GTCC facility burns the “cleaned gas” as fuel to spin the gas turbine to generate power. Furthermore, the heat from the exhaust gas is recovered at the heat recovery steam generator (HRSG) and is exchanged with water, making steam, which in turn is used by the steam turbine for additional power generation.
Placed downstream from the gasifier, the heat exchanger cools the hot coal gas. The steam generated at that time is merged into the HRSG and used for power generation by the steam turbine, further enhancing efficiency in power generation.

Schematic of the Air-blown IGCC System

Oxygen-blown IGCC

Oxygen-blown IGCC systems use oxygen for coal gasification. First, coal is processed into coal gas in the gasifier, where oxygen is used as the gasification agent. Coal gas undergoes desulfurization and de-dusting treatment in the gas clean-up unit to comply with the standards for gas turbine fuel and exhaust gas. The “cleaned gas” is supplied to the GTCC facility.

The GTCC facility burns the “cleaned gas” as fuel to spin the gas turbine to generate power. Furthermore, the heat from the exhaust gas is recovered at the heat recovery steam generator (HRSG) and is exchanged with water, making steam, which in turn is used by the steam turbine for additional power generation.

Placed downstream from the gasifier, the heat exchanger (or the syngas cooler (SGC)) cools the hot coal gas. The steam generated at that time is merged into the HRSG and used for power generation by the steam turbine, further enhancing efficiency in power generation.



System Configuration of the Oxygen-blown IGCC System

PRODUCTS

RECENTLY VIEWED