Performance Testing of Hydrodesulfurization Catalysts Using a Single-Pellet-String Reactor

Roel Moonen*, Erik Jan Ras, Clare Harvey, Jeroen Alles, Jacob A. Moulijn

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)
76 Downloads (Pure)


Small-scale parallel trickle-bed reactors were used to evaluate the performance of a commercial hydrodesulfurization catalyst under industrially relevant conditions. Catalyst extrudates were loaded as a single string in reactor tubes. It is demonstrated that product sulfur levels and densities obtained with the single-pellet-string reactor are close to the results obtained in a bench-scale fixed-bed reactor operated under the same conditions. Moreover, parallel single-pellet-string reactors show high reproducibility. To study the hydrodynamic effects of the catalyst-bed packing, the catalyst-bed length was varied by loading different amounts of catalysts, and crushed catalyst was also loaded.

Original languageEnglish
Pages (from-to)2025-2034
Number of pages10
JournalChemical Engineering and Technology
Issue number11
Publication statusPublished - 1 Nov 2017


  • Catalysts
  • Fixed bed
  • Hydrodesulfurization
  • Reactors
  • Single-Pellet String


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