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Oxidative coupling of methane - Ageing tests of a La-Sr catalyst

✍ Scribed by G. Desgrandchamps

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 312 KB
Volume: 13
Category: Article
ISSN: 0920-5861
DOI: 10.1016/0920-5861(92)80158-j

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✦ Synopsis

Ageing tests of a La-Sr based catalyst have been performed at 870°C at different apparent contact times, with a feed of the same composition. They show that this catalyst deactivates only very slightly with time on stream. The most sensitive indicator for an ageing phenomenon is the oxygen conversion. Apparently the rate of ageing is so higher as the contact time is shorter. The explanations for this result are based on a first order relationship for the oxygen conversion.

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