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Nickel Poisoning of a Cracking Catalyst Unravelled by Single-Particle X-ray Fluorescence-Diffraction-Absorption Tomography.
Journal article

Nickel Poisoning of a Cracking Catalyst Unravelled by Single-Particle X-ray Fluorescence-Diffraction-Absorption Tomography.

  • Gambino M Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, The Netherlands.
  • Veselý M Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, The Netherlands.
  • Filez M Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, The Netherlands.
  • Oord R Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, The Netherlands.
  • Ferreira Sanchez D Swiss Light Source, Paul Scherrer Institute, 5232, Villigen, Switzerland.
  • Grolimund D Swiss Light Source, Paul Scherrer Institute, 5232, Villigen, Switzerland.
  • Nesterenko N Total Research and Technology Feluy, Zone Industrielle Feluy C, 7181, Seneffe, Belgium.
  • Minoux D Total Research and Technology Feluy, Zone Industrielle Feluy C, 7181, Seneffe, Belgium.
  • Maquet M Total Research and Technology Gonfreville, Zone Industrielle Carrefour No 4, BP 27, 76700, Harfleur, France.
  • Meirer F Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, The Netherlands.
  • Weckhuysen BM Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, The Netherlands.
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  • 2020-01-01
Published in:
  • Angewandte Chemie (International ed. in English). - 2020
X-ray microscopy
catalyst deactivation
fluid catalytic cracking (FCC)
heterogeneous catalysis
zeolites
English Ni contamination from crude oil in the fluid catalytic cracking (FCC) process is one of the primary sources of catalyst deactivation, thereby promoting dehydrogenation-hydrogenation and speeding up coke growth. Herein, single-particle X-ray fluorescence, diffraction and absorption (μXRF-μXRD-μXAS) tomography is used in combination with confocal fluorescence microscopy (CFM) after thiophene staining to spatially resolve Ni interaction with catalyst components and study zeolite degradation, including the processes of dealumination and Brønsted acid sites distribution changes. The comparison between a Ni-lean particle, exposed to hydrotreated feedstock, and a Ni-rich one, exposed to non-hydrotreated feedstock, reveals a preferential interaction of Ni, found in co-localization with Fe, with the γ-Al2 O3 matrix, leading to the formation of spinel-type hotspots. Although both particles show similar surface zeolite degradation, the Ni-rich particle displays higher dealumination and a clear Brønsted acidity drop.
Language
  • English
Open access status
closed
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Persistent URL
https://sonar.ch/global/documents/1012
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