Catalytic gasification of carbon with steam, carbon dioxide and hydrogen

✍ Scribed by Yasukatsu Tamai; Haruo Watanabe; Akira Tomita

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 509 KB
• Volume: 15
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(77)90024-0

✦ Synopsis

A~~~-Nine

t~nsition metals in Group VIII were examined as catalysts for the carbon gasification with steam, carbon dioxide and hydrogen. Metal-doped carbons were heated up to 950°C at a constant rate of 2OO"C/hr in a flowing reactant gas. The relative activities of metal catalysts are nearly the same for all gases regardless of their quite different chemical nature. Metals like Ru, Rh, Ir and Pt are invariably active, whereas Fe, Co and Pd have small activities. The reaction pattern differs from catalyst to catalyst. Only four metals (e.g. Ni, Ru, Rh and OS) exhibit the maximum reactivity in the low-temperature region, and this behavior is common to three gases. It is soectdated from these observations that the metal-carbon interaction is more important than the metal-gas interaction in determining the reaction profile.