Dehydrogenation of ethane over CaSnO3 as a precursor of the catalyst

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Direct and oxidative (by O2 from air) dehydrogenation of ethane over CaSnO3 as a precursor of the catalyst Sn0 was carried out. On the base of the physicochemical methods, the structure and phase composition of the catalyst before and after the reactions were determined. Under the reaction conditions, partial reduction of Sn+4 to the metallic state occurs.

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作者简介

I. Mishanin

N.D. Zelinsky Institute of Organic Chemistry RAS

编辑信件的主要联系方式.
Email: mishanin@ioc.ac.ru
俄罗斯联邦, Leninsky Prosp., 47, Moscow, 119991

T. Bogdan

Lomonosov Moscow State University, Department of Chemistry; N.D. Zelinsky Institute of Organic Chemistry RAS

Email: mishanin@ioc.ac.ru
俄罗斯联邦, GSP-1, Leninskie Gory, 1, build. 3, Moscow, 119991; Leninsky Prosp., 47, Moscow, 119991

N. Mashchenko

N.D. Zelinsky Institute of Organic Chemistry RAS

Email: mishanin@ioc.ac.ru
俄罗斯联邦, Leninsky Prosp., 47, Moscow, 119991

K. Azarov

N.D. Zelinsky Institute of Organic Chemistry RAS

Email: mishanin@ioc.ac.ru
俄罗斯联邦, Leninsky Prosp., 47, Moscow, 119991

T. Fedoseev

N.D. Zelinsky Institute of Organic Chemistry RAS

Email: mishanin@ioc.ac.ru
俄罗斯联邦, Leninsky Prosp., 47, Moscow, 119991

V. Bogdan

N.D. Zelinsky Institute of Organic Chemistry RAS

Email: mishanin@ioc.ac.ru
俄罗斯联邦, Leninsky Prosp., 47, Moscow, 119991

参考

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2. Scheme 1. Ethane dehydrogenation scheme in the presence of an oxidant (a) and in its absence (b).

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3. Scheme 2. Scheme of CaSnO3 reduction during ethane dehydrogenation.

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4. Fig. 1. Ethylene yield vs. time during direct and oxidative ethane dehydrogenation over CaSnO3 at 700°C.

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5. Fig. 2. SEM micrographs of the catalyst before reaction (a), after oxidative (b, c) and direct (d, e) ethane dehydrogenation.

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6. Fig. 3. Distribution of oxygen (a) and calcium (b) on CaSnO3 surface after direct ethane dehydrogenation at 700°C according to SEM-EDS.

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7. Fig. 4. XRD patterns of CaSn(OH)6: calcined at 500°C (1), initial (2), after direct (3) and oxidative (4) dehydrogenation.

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