Study on the synergistic high-temperature corrosion mechanism of NH3-H2S on different water wall tube materials under a strongly reducing atmosphere in an ammonia-coal co-firing environment

Key Points

• High-temperature corrosion was significantly affected by NH3-H2S interactions within the reducing atmosphere.
• The study revealed specific corrosion rates on different tube materials under simulated conditions.
• Observational analysis under strongly reducing atmospheres was used to assess corrosion behaviors.
• These findings may enable improved material selection for enhancing durability in ammonia-coal co-firing systems.