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Fixed-bed reactor for catalytic studies on low-surface area materials.

Dennis C A Ivarsson1, Ioannis G Aviziotis1, Toni Keilhauer1

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Summary

A novel flow-reactor bridges the gap between surface science and industrial catalysis. This new reactor enables detailed catalytic studies on various materials under industrially relevant conditions.

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Area of Science:

  • Catalysis
  • Surface Science
  • Chemical Engineering

Background:

  • Comparability of data from different methods is crucial for advancing heterogeneous catalysis knowledge.
  • Bridging the pressure and material gaps between surface science and industrial catalysis is essential for deeper understanding.

Purpose of the Study:

  • To develop and validate a new flow-reactor design.
  • To enable comparison between surface science insights and industrial catalysis performance.
  • To facilitate catalytic investigations of low-surface area materials under relevant conditions.

Main Methods:

  • Development of a novel flow-reactor capable of handling temperatures up to 500 °C and pressures up to 10 bar.
  • Catalytic testing using pressed pills of Pd11Bi2Se2 for acetylene semi-hydrogenation.
  • Catalytic testing using oriented single-crystalline InPd slabs for methanol steam reforming.

Main Results:

  • Demonstrated high conversion of acetylene with inert sample transfer in the Pd11Bi2Se2 system.
  • Observed higher catalytic activity for the (110) surface of InPd compared to (100) and (111) surfaces in methanol steam reforming.
  • Validated the reactor's capability to bridge pressure and material gaps.

Conclusions:

  • The new flow-reactor design is viable for detailed catalytic investigations.
  • This reactor opens new avenues for studying diverse materials and catalytic systems.
  • It facilitates the integration of surface science techniques with industrial catalysis research.