Liquid-phase hydrogenation of citral over an immobile silica fibre catalyst

Tapio Salmi*, Päivi Mäki-Arvela, Esa Toukoniitty, Ahmad Kalantar Neyestanaki, Lasse Pekka Tiainen, Lars Eric Lindfors, Rainer Sjöholm, Ensio Laine

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

44 Citations (Scopus)


A new knitted silica fibre catalyst was introduced into liquid-phase hydrogenation of organic compounds. The fibre catalyst combines the advantages of catalyst slurries and large catalyst particles: diffusional limitations are suppressed and the catalyst is immobile. Nickel-impregnated silica fibres were used in the hydrogenation of citral to citronellal and citronellol in a tubular glass reactor where the catalyst was packed in two layers. The liquid phase was recirculated while the gas phase was flowing concurrently through the reactor to the vent. The highest selectivities to the desired product, citronellol, exceeded 90%. The catalyst performance was competitive with a conventional crushed nickel catalyst.

Original languageEnglish
Pages (from-to)93-102
Number of pages10
JournalApplied Catalysis A: General
Issue number1
Publication statusPublished - 27 Mar 2000
MoE publication typeA1 Journal article-refereed


  • Citral hydrogenation
  • Liquid phase
  • Nickel
  • Silica fibre catalyst


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