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Study of Catalyst Deactivation in Liquid-Phase Hydrogenation of 3-Nitrostyrene Over Au/Al2O3 Catalyst in Flow Reactor Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Journal Catalysis Letters
ISSN: 1011-372X , E-ISSN: 1572-879X
Output data Year: 2017, Volume: 147, Number: 2, Pages: 572-580 Pages count : 9 DOI: 10.1007/s10562-016-1959-3
Tags 3-Nitrostyrene, Au/Al2O3 catalyst, Deactivation, Flow reactor, Heterogeneous catalysis, Kinetic modeling, Liquid-phase hydrogenation, Selective hydrogenation
Authors Nuzhdin A.L. 1 , Reshetnikov S.I. 1 , Bukhtiyarova G.A. 1 , Moroz B.L. 1,2 , Gerasimov E.Yu. 1,2 , Pyrjaev P.A. 1 , Bukhtiyarov V.I. 1,2
Affiliations
1 Boreskov Institute of Catalysis SB RAS, Lavrentieva Ave., 5, Novosibirsk, Russia 630090
2 Novosibirsk State University, Pirogova Str., 2, Novosibirsk, Russia 630090

Funding (1)

1 Russian Science Foundation 14-23-00146

Abstract: For the first time, we report the results of the study of dynamics of the Au/Al2O3 catalyst deactivation during the selective liquid-phase 3-nitrostyrene (3-NS) hydrogenation in a fixed bed flow reactor. It is shown that the formation of carbonaceous deposits is the main reason of catalyst deactivation, while the leaching of gold from the Au/Al2O3 catalyst or enlargement of the gold particles has not been detected. The content of the carbon deposits on the spent catalyst at the inlet of the reactor is higher than at the outlet and increases as the initial concentration of 3-NS grows. The character of carbonaceous deposits allocation and analysis of reaction products point out to 3-vinylnitrosobenzene as the main source of the Au/Al2O3 catalyst deactivation coinciding with the speculation arising from the kinetic modeling.
Cite: Nuzhdin A.L. , Reshetnikov S.I. , Bukhtiyarova G.A. , Moroz B.L. , Gerasimov E.Y. , Pyrjaev P.A. , Bukhtiyarov V.I.
Study of Catalyst Deactivation in Liquid-Phase Hydrogenation of 3-Nitrostyrene Over Au/Al2O3 Catalyst in Flow Reactor
Catalysis Letters. 2017. V.147. N2. P.572-580. DOI: 10.1007/s10562-016-1959-3 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Oct 26, 2016
Accepted: Dec 20, 2016
Published online: Jan 12, 2017
Published print: Feb 1, 2017
Identifiers:
publication_identifier.wos_identifier_type WOS:000394359600028
publication_identifier.scopus_identifier_type 2-s2.0-85009252472
publication_identifier.rinz_identifier_type 29471641
publication_identifier.accession_number_identifier_type 2017:88964
publication_identifier.chemical_accession_number_identifier_type 166:352443
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