This paper examines the ongoing significance of pulverized coal-fired steam plants in global power generation, focusing on technological advancements and strategies for improving efficiency and reducing CO2 emissions. It traces the development of Ultra-Supercritical (USC) plants with steam temperatures around 600°C and explores immediate opportunities for further efficiency enhancements, including the innovative Master Cycle. The potential for increasing steam temperatures to 650°C using new steels and to 700°C with nickel-based AD 700 technology is discussed. The paper outlines a comprehensive strategy for CO2 emission reduction: maximizing plant efficiency, co-firing with CO2-neutral fuels, and integrating with district heating/cooling or industrial heat consumers. Carbon capture and storage techniques are presented as a final step in this multi-faceted approach to sustainable power generation.

carbon capture, carbon dioxide emission, carbon storage techniques, nickel alloys, pulverized coal-fired steam plants, steam temperature, steel
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2011
ASM International
Topics
Steel Coal-fired boilers Nickel alloys
Issue Section:
Plenary Session