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Catalytic water vapour gasification of carbon: Importance of melting and wetting behaviour of the ‘catalyst’

✍ Scribed by Klaus J. Hüttinger; Roland Minges

Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
416 KB
Volume
64
Category
Article
ISSN
0016-2361

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✦ Synopsis

The melting and wetting behaviour of various alkali compounds (carbonates: Li,CO,, Na&O,, K2C03, Cs,CO,; halides: KF, KCI, KBr, NaCI; single potassium salts: KNO,, K2S04) without and with additives (V,O,, FeS04.7H20) on a polished surface of a polycrystalline graphite of high purity was studied during heating at 4 K min-' to 900°C in different atmospheres. It was found that all those catalyst raw materials which showed catalytic activity in earlier studies are low-melting and wet the graphite surface. This is esbeciallv true of mixtures of alkali chlorides (NaCI, KCI) with V205 and of K2S04 with FeS0,.7H;O or other iron salts.

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