Recent advances in high temperature catalytic combustion

✍ Scribed by Koichi Eguchi; Hiromichi Arai

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 587 KB
• Volume: 29
• Category: Article
• ISSN: 0920-5861
• DOI: 10.1016/0920-5861(95)00308-8

✦ Synopsis

Catalytic combustion of methane has been investigated for the application to gas turbines. As the combustion is operated at high temperatures and high space velocity, heterogeneous reaction and surface-initiated gas phase reaction proceed concurrently. Thermal resistance to maintain large surface area is, therefore, requested to attain high combustion efficiency above 1000°C. Hexaaluminate compounds were effective in maintaining large surface area. On the other hand, palladium catalysts were generally employed for the combustion of methane below 1000°C. The prototype catalyst combustors were successfully tested with their high combustion efficiency and low NO x emission by using Pd based-and/or hexaaluminate catalysts.