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Magnetophoretic Sorting of Single Catalyst Particles.

Miguel Solsona1, Anne-Eva Nieuwelink2, Florian Meirer2

  • 1BIOS lab on a chip group, MESA+ Institute for Nanotechnology, University of Twente, Drienerlolaan 5, Enschede, The Netherlands.

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|July 3, 2018
PubMed
Summary
This summary is machine-generated.

Researchers developed a 3D printed magnetophoretic chip to sort catalyst particles by magnetic moment. This method reveals iron content influences catalyst performance and acid site availability in Fluid Catalytic Cracking (FCC) particles.

Keywords:
fluid catalytic crackingheterogeneous catalysismagnetic propertiesmagnetophoresismicrofluidics

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Area of Science:

  • Materials Science
  • Chemical Engineering
  • Catalysis

Background:

  • Understanding catalyst deactivation is crucial for designing improved catalysts.
  • Inter-particle heterogeneity necessitates single-particle analysis for detailed insights.
  • Microfluidics presents novel opportunities for single-particle catalyst sorting.

Purpose of the Study:

  • To develop a method for sorting catalyst particles based on their magnetic properties.
  • To investigate the relationship between iron content, magnetic moment, and catalytic activity in Fluid Catalytic Cracking (FCC) particles.
  • To establish a foundation for high-throughput catalyst diagnostics.

Main Methods:

  • Fabrication of a 3D printed magnetophoretic chip for particle sorting.
  • Separation of FCC particles utilizing their magnetic moments.
  • Analysis of particle Fe content and Brønsted acid site availability.

Main Results:

  • Demonstrated the capability of a 3D printed magnetophoretic chip to sort catalyst particles by magnetic moment.
  • Identified significant Fe aggregates in 20% of FCC particles with high Fe content.
  • Observed a decrease in Brønsted acid site availability correlating with increased Fe content.

Conclusions:

  • Magnetophoretic sorting is an effective technique for analyzing heterogeneous catalyst particles.
  • Iron content significantly impacts the properties and performance of FCC catalysts.
  • This work enables the development of high-throughput platforms for catalyst diagnostics.