3D printed CuZnAl2O3-based catalysts for direct CO2 hydrogenation to DME, optimization and scale up

Yoran De Vos, Arie J.J. Koekkoek, Giuseppe Bonura, Serena Todaro, Monika Kus, Alexander Vansant, Gijsbert Gerritsen, Catia Cannilla, Hendrikus C.L. Abbenhuis, Vesna Middelkoop (Corresponding author)

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

This work reports the development, optimization and subsequent scale-up of 3D printed catalyst structures for direct CO2 hydrogenation to DME. To ensure compatibility between the used Cu-ZnO-Al2O3 (CZA) catalyst and the acid form H-ZSM-5 co-catalyst, a new binary polymeric binder system, based on polyethyleneimine (PEI) and methylcellulose (MC), was selected. The 3D-printing paste composition was optimized through 2 successive Design of Experiments (DOE) to achieve (i) good textural properties that ensure catalytic activity and (ii) improved mechanical integrity and printability. The DOE unveiled the critical link between the pH of the printing paste and the preservation of textural properties and catalytical activity of the printed catalysts. Finally, the successful scale-up of the 3D-printed catalyst structures was demonstrated using the optimized printing paste, and the performance of the final catalysts was evaluated by catalytic testing and accompanied X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS) analyses.

Original languageEnglish
Article number117759
Number of pages12
JournalMaterials Science and Engineering: B
Volume310
DOIs
Publication statusPublished - Dec 2024

Bibliographical note

Publisher Copyright:
© 2024 The Authors

Keywords

  • 3D printing
  • Binary catalytic system
  • CO hydrogenation
  • DME
  • Methanol

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