Influence of dry operating conditions: observation of oscillations and low temperature CO oxidation over Co30 4 and Au/Co304 catalysts

Authors:	Cunningham, D.A.H. Kobayashi, T. Kamijo, N.
Keywords:	Co304 Gold CO oxidation Oscillation
Issue Date:	1994
Publisher:	Osaka National Research Institute, AIST, Midorigaoka 1-8-31, lkeda 563, Japan
Citation:	ISIKNOWLEDGE
Abstract:	The effect of dry operating conditions upon the oxidation of CO over Co304 and Au/Co304 has been studied. Under dry conditions (with pretreatment and reaction gases dried at -76~ using molecular sieve traps) oxidation of CO over Co304 can be observed at tempera- tures as low as -54~ However, without sufficient drying Co304 rapidly deactivates. On the other hand, the Au/Co304 catalyst is resistant to the presence of moisture even at low tempera- tures. For both the Co304 and Au/Co304 catalytic systems, strong and periodic oscillations in percentage conversion and catalyst bed temperature have been observed
Description:	Received 21 May 1993; accepted 12 January 1994
URI:	http://repository.vnu.edu.vn/handle/VNU_123/32830
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