Abstract
Propane dehydrogenation over alumina-supported Pt-Sn catalysts has been studied in an oscillating microbalance reactor (TEOM). The kinetics of coke formation and the deactivation functions for the coking and the dehydrogenation reaction were determined. The selected model describes the formation of coke (measured as the mass increase) on the catalyst well over the entire temperature range studied (450–580°C), independent of whether hydrogen was present in the feed gas or not. A commercial Pt/Al 2 O 3 catalyst (CK 303) showed a higher degree of deactivation although the coking rate was lower. The initial activity is difficult to determine due to rapid initial deactivation. A model based on fitting the turnover frequency against the measured coke deposition (as opposed to time on stream) is found to give improved estimates of the initial activity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
