High-Resolution Single-Molecule Fluorescence Imaging of Zeolite Aggregates within Real-Life Fluid Catalytic Cracking Particles

Fluid catalytic cracking (FCC) is a major process in oil refineries to produce gasoline and base chemicals from crude oil fractions. The spatial distribution and acidity of zeolite aggregates embedded within the 50–150 μm‐sized FCC spheres heavily influence their catalytic performance. Single‐molecu...

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Vydané v:Angewandte Chemie International Edition Ročník 54; číslo 6; s. 1836 - 1840
Hlavní autori: Ristanović, Zoran, Kerssens, Marleen M., Kubarev, Alexey V., Hendriks, Frank C., Dedecker, Peter, Hofkens, Johan, Roeffaers, Maarten B. J., Weckhuysen, Bert M.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Weinheim WILEY-VCH Verlag 02.02.2015
WILEY‐VCH Verlag
Wiley Subscription Services, Inc
Vydanie:International ed. in English
Predmet:
Acidity
Aggregates
Brønsted acidity
Catalysis
Catalysts
Catalytic activity
Chemical reactions
Communications
Crude oil
Fluid catalytic cracking
Fluorescence
Gasoline
Imaging
Microscopy, Fluorescence - methods
Nanostructure
Oil refineries
Refineries
single-molecule microscopy
Spatial distribution
Zeolites
Zeolites - chemistry
Brønsted acidity
zeolites
single-molecule microscopy
fluid catalytic cracking
fluorescence
ISSN:1433-7851, 1521-3773, 1521-3773
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Shrnutí:Fluid catalytic cracking (FCC) is a major process in oil refineries to produce gasoline and base chemicals from crude oil fractions. The spatial distribution and acidity of zeolite aggregates embedded within the 50–150 μm‐sized FCC spheres heavily influence their catalytic performance. Single‐molecule fluorescence‐based imaging methods, namely nanometer accuracy by stochastic chemical reactions (NASCA) and super‐resolution optical fluctuation imaging (SOFI) were used to study the catalytic activity of sub‐micrometer zeolite ZSM‐5 domains within real‐life FCC catalyst particles. The formation of fluorescent product molecules taking place at Brønsted acid sites was monitored with single turnover sensitivity and high spatiotemporal resolution, providing detailed insight in dispersion and catalytic activity of zeolite ZSM‐5 aggregates. The results point towards substantial differences in turnover frequencies between the zeolite aggregates, revealing significant intraparticle heterogeneities in Brønsted reactivity. Real‐life fluid catalytic cracking (FCC) catalyst particles have been studied with a combination of single‐molecule fluorescence nanoscopy and stochastic optical fluctuation imaging methods. Zeolite ZSM‐5 aggregates and their reactivity could be mapped with unprecedented spatiotemporal resolution and sensitivity, revealing significant differences in turnover frequencies of the embedded individual zeolite particulates.
Bibliografia:B.M.W. acknowledges the Netherlands Organisation for Scientific Research (NWO) Gravitation program (Netherlands Center for Multiscale Catalytic Energy Conversion, MCEC) and an European Research Council (ERC) advanced grant (grant number 321140). M.B.J.R. and J.H. thank the "Fonds voor Wetenschappelijk Onderzoek" (grant number G0197.11), the KU Leuven Research Fund (grant number OT/12/059), Belspo (grant number IAP-VII/05), and the Flemish government (long-term structural funding-Methusalem funding CASAS grant number METH/08/04). M.B.J.R. acknowledges the ERC for financial support (starting grant number 307523). Albemarle is acknowledged for providing the FCC catalyst particles.
KU Leuven Research Fund - No. OT/12/059
Funded Access
Fonds voor Wetenschappelijk Onderzoek - No. G0197.11
Belspo - No. IAP-VII/05
ark:/67375/WNG-LGD9TKD6-K
ERC - No. 307523
Netherlands Organisation for Scientific Research
European Research Council - No. 321140
Flemish government - No. METH/08/04
istex:58461EF0311E52D74A50445146B2746ED3D71A3B
ArticleID:ANIE201410236
B.M.W. acknowledges the Netherlands Organisation for Scientific Research (NWO) Gravitation program (Netherlands Center for Multiscale Catalytic Energy Conversion, MCEC) and an European Research Council (ERC) advanced grant (grant number 321140). M.B.J.R. and J.H. thank the “Fonds voor Wetenschappelijk Onderzoek” (grant number G0197.11), the KU Leuven Research Fund (grant number OT/12/059), Belspo (grant number IAP‐VII/05), and the Flemish government (long‐term structural funding—Methusalem funding CASAS grant number METH/08/04). M.B.J.R. acknowledges the ERC for financial support (starting grant number 307523). Albemarle is acknowledged for providing the FCC catalyst particles.
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B.M.W. acknowledges the Netherlands Organisation for Scientific Research (NWO) Gravitation program (Netherlands Center for Multiscale Catalytic Energy Conversion, MCEC) and an European Research Council (ERC) advanced grant (grant number 321140). M.B.J.R. and J.H. thank the “Fonds voor Wetenschappelijk Onderzoek” (grant number G0197.11), the KU Leuven Research Fund (grant number OT/12/059), Belspo (grant number IAP-VII/05), and the Flemish government (long-term structural funding—Methusalem funding CASAS grant number METH/08/04). M.B.J.R. acknowledges the ERC for financial support (starting grant number 307523). Albemarle is acknowledged for providing the FCC catalyst particles.
ISSN:1433-7851
1521-3773
1521-3773
DOI:10.1002/anie.201410236