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88. The stability of intermediate surface complexes in water vapour gasification of carbon without and with catalyst

✍ Scribed by G Hermann; K.J Hüttinger

Publisher: Elsevier Science
Year: 1984
Tongue: English
Weight: 131 KB
Volume: 22
Category: Article
ISSN: 0008-6223
DOI: 10.1016/0008-6223(84)90305-1

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✦ Synopsis

S. A.). Controlled atmosphere electron microscopy examinations have shown that both tungsten and rhenium are active catalysts for the graphite-oxygen reaction, although the former exhibits only marginal activity. Of the two materials, only rhenium is effective in catalyzing the gasification of graphite in hydrogen.

From a comparison of the bicomponent system with that of its pure constituents, it is concluded that in oxygen, rhenium segregates to the surface, whereas in a reducing environment the surface is enriched with tungsten.

Moreover, it was found that the intrinsic catalytic channeling rate of the mixed system is significantly faster than that of tungsten or rhenium in the graphite-oxygen reaction.

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✍ Klaus J. Hüttinger; Roland Minges 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 441 KB

Previously it was shown that certain mixtures of K2S04 and FeSO, were excellent raw materials for catalytic watervapourgasification of carbon. It was suggested from the results that the iron salt catalyses the reduction of K2S04 to K as the main catalyticly active species of gasification. This paper