Stability of Pd/Sibunit and Pd-M/Sibunit (M: Zn, Ag) catalysts for gas-phase acetylene hydrogenation

Stability of Pd/Sibunit and Pd-M/Sibunit (M: Zn, Ag) catalysts for gas-phase acetylene hydrogenation Full article

Conference

VI Всероссийская научная молодежная школа-конференция «Химия под знаком СИГМА: исследования, инновации, технологии"
18-20 May 2020 , Омск

Journal

AIP Conference Proceedings
ISSN: 0094-243X , E-ISSN: 1551-7616

Output data

Year: 2020, Volume: 2301, Article number : 030005, Pages count : 4 DOI: 10.1063/5.0032868

Authors

Glyzdova D.V. ¹ , Afonasenko T.N. ¹ , Talsi V.P. ¹ , Shlyapin D.A. ¹

Affiliations

1	Center of New Chemical Technologies BIC, Boreskov Institute of Catalysis

Funding (1)

Ministry of Science and Higher Education of the Russian Federation

46.2.5

Pd/Sibunit and Pd-M/Sibunit (M: Zn, Ag) catalysts were investigated in the selective gas-phase acetylene hydrogenation. It was found that modified Pd-Zn/Sibunit and Pd-Ag/Sibunit catalysts have stable properties for 10 hours at 85°C, while the activity of monometallic Pd/Sibunit sample is gradually decreased from 791 to 717 ml(C2H4)/g•min. Using the DTA method, it was shown that light carbonaceous deposits, based on acetylene oligomerization products, form on the surface of Pd/Sibunit and Pd-M/Sibunit catalysts during the reaction. It was found by the NMR method that the oligomers trapped by Pd/Sibunit surface is C8 hydrocarbons. It is assumed that the differences in the resistance to deactivation of Pd/Sibunit and modified systems can be associated with different localization of carbon deposits on the surface of studied catalysts.

Glyzdova D.V. , Afonasenko T.N. , Talsi V.P. , Shlyapin D.A.
Stability of Pd/Sibunit and Pd-M/Sibunit (M: Zn, Ag) catalysts for gas-phase acetylene hydrogenation
AIP Conference Proceedings. 2020. V.2301. 030005 :1-4. DOI: 10.1063/5.0032868 Scopus РИНЦ OpenAlex

Published print:

Dec 8, 2020

Scopus:	2-s2.0-85098069554
Elibrary:	45098870
OpenAlex:	W3111218201

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