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Rojo-Gama D, Mentel L, Kalantzopoulos GN, et al. Deactivation of Zeolite Catalyst H-ZSM-5 during Conversion of Methanol to Gasoline: Operando Time- and Space-Resolved X-ray Diffraction. J Phys Chem Lett. 2018;9(6):1324-1328doi: 10.1021/acs.jpclett.8b00094.
Rojo-Gama, D., Mentel, L., Kalantzopoulos, G. N., Pappas, D. K., Dovgaliuk, I., Olsbye, U., Lillerud, K. P., Beato, P., Lundegaard, L. F., Wragg, D. S., & Svelle, S. (2018). Deactivation of Zeolite Catalyst H-ZSM-5 during Conversion of Methanol to Gasoline: Operando Time- and Space-Resolved X-ray Diffraction. The journal of physical chemistry letters, 9(6), 1324-1328. https://doi.org/10.1021/acs.jpclett.8b00094
Rojo-Gama, Daniel, et al. "Deactivation of Zeolite Catalyst H-ZSM-5 during Conversion of Methanol to Gasoline: Operando Time- and Space-Resolved X-ray Diffraction." The journal of physical chemistry letters vol. 9,6 (2018): 1324-1328. doi: https://doi.org/10.1021/acs.jpclett.8b00094
Rojo-Gama D, Mentel L, Kalantzopoulos GN, Pappas DK, Dovgaliuk I, Olsbye U, Lillerud KP, Beato P, Lundegaard LF, Wragg DS, Svelle S. Deactivation of Zeolite Catalyst H-ZSM-5 during Conversion of Methanol to Gasoline: Operando Time- and Space-Resolved X-ray Diffraction. J Phys Chem Lett. 2018 Mar 15;9(6):1324-1328. doi: 10.1021/acs.jpclett.8b00094. Epub 2018 Mar 05. PMID: 29494162.
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J Phys Chem Lett. 2018 Mar 15;9(6):1324-1328. doi: 10.1021/acs.jpclett.8b00094. Epub 2018 Mar 05.

Deactivation of Zeolite Catalyst H-ZSM-5 during Conversion of Methanol to Gasoline: Operando Time- and Space-Resolved X-ray Diffraction.

The journal of physical chemistry letters

Daniel Rojo-Gama, Lukasz Mentel, Georgios N Kalantzopoulos, Dimitrios K Pappas, Iurii Dovgaliuk, Unni Olsbye, Karl Petter Lillerud, Pablo Beato, Lars F Lundegaard, David S Wragg, Stian Svelle

Affiliations

  1. Center for Materials Science and Nanotechnology (SMN), Department of Chemistry , University of Oslo , P.O. Box 1033, Blindern , N-0315 Oslo , Norway.
  2. Haldor Topsøe A/S , Haldor Topsøes Allé 1 , 2800 Kgs. Lyngby , Denmark.
  3. Swiss-Norwegian Beamline, The European Synchrotron , European Synchrotron Radiation Facility , 6, Rue Jules Horowitz , 38000 Grenoble , France.

PMID: 29494162 DOI: 10.1021/acs.jpclett.8b00094

Abstract

The deactivation of zeolite catalyst H-ZSM-5 by coking during the conversion of methanol to hydrocarbons was monitored by high-energy space- and time-resolved operando X-ray diffraction (XRD) . Space resolution was achieved by continuous scanning along the axial length of a capillary fixed bed reactor with a time resolution of 10 s per scan. Using real structural parameters obtained from XRD, we can track the development of coke at different points in the reactor and link this to a kinetic model to correlate catalyst deactivation with structural changes occurring in the material. The "burning cigar" model of catalyst bed deactivation is directly observed in real time.

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