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Chemistry in 5D; Operando Time­resolved 3D­XRD­CT of a Packed­bed Reactor During Methane Partial Oxdiation Тезисы доклада

Конференция EuropaCat-XIII: 13th European Congress on Catalysis
27-31 авг. 2017 , Florence
Сборник 13th European Congress on Catalysis
Сборник, 2017.
Вых. Данные Год: 2017, Номер статьи : 1D.8, Страниц : 2
Авторы Vamvakeros Antonis 1,2 , Jacques Simon D.M. 3 , Middelkoop Vesna 4 , Michiel Macro Di 5 , Ismagilov I.Z. 6 , Beale A.M. 1,2
Организации
1 Research Complex at Harwell, Harwell Science and Innovation Campus, Didcot, Oxon, OX11 0FA, UK.
2 Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
3 School of Materials, University of Manchester, Manchester, Lancashire M13 9PL, UK.
4 Flemish Institute for Technological Research, VITO NV, Boeretang 200, Mol, Belgium
5 ESRF, 6 Rue Jules Horowitz, 38000 Grenoble, France
6 Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia

Реферат: Catalysts respond to their environment necessitating their characterization under real working conditions to properly understand structure-activity relationships. -ray diffraction computed tomography (XRD-CT) has recently been developed as a chemical imaging tool to study catalytic systems under real process conditions; the spatially-resolved signals revealing insight into structural transformation lost in bulk measurements. However, the temporal resolution of the XRD-CT technique is its main drawback. Herein, we use a new data collection strategy which minimizes the “dead time” during an XRD-CT scan, in conjunction with a “noisefree” photon counting detector to yield 2D data in seconds. This combination has been used to obtain a 3D ‘chemical’ image of a multicomponent Ni/Pd catalyst supported on ZrO2-CeO2/Al2O3packed-bed reactor during activation and partial oxidation of methane. The time-resolved chemical profiles reveal the variability in structural composition on a particle basis but also reveal differences as a function in bed height allowing a more complete understanding of the correlation between catalyst structure and function.
Библиографическая ссылка: Vamvakeros A. , Jacques S.D.M. , Middelkoop V. , Michiel M.D. , Ismagilov I.Z. , Beale A.M.
Chemistry in 5D; Operando Time­resolved 3D­XRD­CT of a Packed­bed Reactor During Methane Partial Oxdiation
В сборнике 13th European Congress on Catalysis. 2017. – C.169-170.
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