Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Study of Catalyst Deactivation in Liquid-Phase Hydrogenation of 3-Nitrostyrene Over Au/Al2O3 Catalyst in Flow Reactor. / Nuzhdin, A. L.; Reshetnikov, S. I.; Bukhtiyarova, G. A. и др.
в: Catalysis Letters, Том 147, № 2, 02.2017, стр. 572-580.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Study of Catalyst Deactivation in Liquid-Phase Hydrogenation of 3-Nitrostyrene Over Au/Al2O3 Catalyst in Flow Reactor
AU - Nuzhdin, A. L.
AU - Reshetnikov, S. I.
AU - Bukhtiyarova, G. A.
AU - Moroz, B. L.
AU - Gerasimov, E. Yu
AU - Pyrjaev, P. A.
AU - Bukhtiyarov, V. I.
PY - 2017/2
Y1 - 2017/2
N2 - 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.
AB - 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.
KW - 3-Nitrostyrene
KW - Au/AlO catalyst
KW - Deactivation
KW - Flow reactor
KW - Heterogeneous catalysis
KW - Kinetic modeling
KW - Liquid-phase hydrogenation
KW - Selective hydrogenation
KW - GOLD
KW - DESIGN
KW - Au/Al2O3 catalyst
KW - P-CHLORONITROBENZENE
KW - NANOPARTICLES
KW - NITROARENES
KW - PRESSURE
KW - REDUCTION
KW - AU
KW - CHEMOSELECTIVE HYDROGENATION
KW - NITRO
KW - Au/Al2O3catalyst
UR - http://www.scopus.com/inward/record.url?scp=85009252472&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/784f5bd1-a78b-3a0d-a666-01befc852fe6/
U2 - 10.1007/s10562-016-1959-3
DO - 10.1007/s10562-016-1959-3
M3 - Article
AN - SCOPUS:85009252472
VL - 147
SP - 572
EP - 580
JO - Catalysis Letters
JF - Catalysis Letters
SN - 1011-372X
IS - 2
ER -
ID: 10315244