Char gasification in steam at 1123 K catalyzed by K, Na, Ca and Fe—effect of H2, H2S and COS

✍ Scribed by Shiro Matsumoto; Philip L. Walker Jr.

• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 820 KB
• Volume: 24
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(86)90228-9

✦ Synopsis

Potassium, Na and Ca are excellent catalysts for the gasification of Saran char by steam. Hydrogen inhibits catalysis by K, Na and Ca but promotes catalysis by Fe. The extent of the effect of H,S (or COS) on inhibiting char gasification by steam depends upon whether it is added to wet N, or wet HZ. The inhibitory effect is much more marked in wet Hz in all cases. Likewise, the time required to recover catalyst activity, following exposure to H,S or COS, is much greater in the presence of wet H, than in the presence of wet N!.