Abstract: The low-temperature dehydrogenation of propane with O2 and H2 on H3PMo12O40-modified Pt catalysts has been studied and improvement of the catalyst performance achieved with the aid of promoters and operating conditions. Introduction of phosphoric acid into the catalysts results in a more uniform distribution of heteropoly acid and enables the content of Pt to be decreased to 0.05 wt.% without affecting catalyst productivity at the low temperature (200 °C). With Ag as the promoter, the propane combustion to CO2 can be further lowered and selectivity to propene enhanced to 94%. The best results were obtained when the consumption of H2 and O2 along the catalyst bed was compensated with a new portion of the reagents (two reactors in line); propene selectivity was still near 90% at overall propane conversion of 7.5% and propene space-time yield of 370 g kgcat−1 h−1. The catalysts showed little deactivation and maintained their conversion and selectivity values for the time of the measurements (5–10 h).

Cite: Kuznetsova N.I. , Popova G.Y. , Kuznetsova L.I. , Zaikovskii V.I. , Koscheev S.V. , Andrushkevich T.V. , Lisitsyn A.S. , Likholobov V.A. , Han S.
Improving the Performance of Pt-H3PMo12O40 Catalysts in the Selective Dehydrogenation of Propane with O2 and H2.
Catalysis Today. 2015. V.245. N1. P.179-185. DOI: 10.1016/j.cattod.2014.07.018 WOS Scopus РИНЦ ANCAN OpenAlex

Dates:

Submitted:	Dec 1, 2013
Accepted:	Jul 7, 2014
Published online:	Sep 11, 2014
Published print:	May 1, 2015

Identifiers:

Web of science:	WOS:000349997100027
Scopus:	2-s2.0-84923249901
Elibrary:	24009617
Chemical Abstracts:	2014:1510665
Chemical Abstracts (print):	162:388288
OpenAlex:	W2019529783

Citing:

DB	Citing
Web of science	4
Scopus	7
Elibrary	7
OpenAlex	7

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