Реферат: Properties of Pt/SiO2 catalysts modified by a heteropoly acid (HPA) were studied in oxidative dehydrogenation of propane with an O2 and H2 mixture. The catalysts were characterized with N2 adsorption, IRS, XPS, and HAADF-STEM coupled with EDX, and the possibility for Pt and HPA to be highly dispersed and well-mixed on the silica surface has been shown. In the presence of O2 and H2, propene could be obtained at temperatures as low as 150 °C, but heating to 200 °C provided much better selectivity (up to 94–96% at propane conversion of 2–4%). The process probably proceeded through oxidation of propane with peroxo species to C3-alcohols on Pt sites, followed by dehydration of the alcohols on the acid sites of HPA. The catalytic properties were strongly dependent both on the feed composition (the C3H8/H2/O2/N2 ratio) and on the composition of catalysts, optimum HPA loading being 20–30 wt.% at 0.2–1 wt.% of Pt. Under optimal operating conditions, a space time yield of propene was at a level of 420 g kgcat−1 h−1, without a tendency to decline with time on stream.

Библиографическая ссылка: Kuznetsova N.I. , Popova G.Y. , Kuznetsova L.I. , Zaikovskii V.I. , Koscheev S.V. , Chesalov Y.A. , Andrushkevich T.V. , Lisitsyn A.S. , Likholobov V.A. , Han S.
Selective Dehydrogenation of Propane to Propene with O2-H2 on Bifunctional Pt-H3PMo12O40 Catalysts
Applied Catalysis A: General. 2014. V.477. P.1-7. DOI: 10.1016/j.apcata.2014.03.001 WOS Scopus РИНЦ CAPlusCA OpenAlex

Даты:

Поступила в редакцию:	26 авг. 2013 г.
Принята к публикации:	1 мар. 2014 г.
Опубликована online:	11 мар. 2014 г.
Опубликована в печати:	5 мая 2014 г.

Идентификаторы БД:

Web of science:	WOS:000336468800001
Scopus:	2-s2.0-84897899494
РИНЦ:	21871498
Chemical Abstracts:	2014:676124
Chemical Abstracts (print):	160:636908
OpenAlex:	W1963804209

Цитирование в БД:

БД	Цитирований
Web of science	10
Scopus	10
РИНЦ	10
OpenAlex	10

Альметрики: