Integrated Gasification Combined Cycle
Quick Summary
Integrated Gasification Combined Cycle (IGCC) is an industrial process that converts coal into a synthesis gas (syngas) composed primarily of carbon monoxide and hydrogen. This syngas can then be used to generate electricity in a combined-cycle power plant, which utilizes both gas and steam turbines for increased efficiency.12
Unlike simple combustion, gasification aims to convert solid fuel into combustible gases rather than maximizing heat production through complete oxidation. The process involves reacting coal with oxygen and steam at high temperatures, with the operating temperature influencing how the ash is removed – either as dry ash, partially melted agglomerates, or liquid slag. Advanced gasification systems focus on increasing operating pressures and temperatures to improve efficiency and accommodate various types of coal.2
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