Perspective on catalyst development for glycerol reduction to C3 chemicals with molecular hydrogen

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44 Citations (Scopus)

Abstract

Recent developments in catalytic reduction with H2 of glycerol, which is a by-product of biodiesel manufacture, and the involved chemistry are summarized and reviewed. There are more than ten potential C3 products of glycerol reduction. Among them, 1,2-propanediol can be obtained in very high yield and the production from glycerol is now commercialized. Production of 1,3-propanediol, allyl alcohol and propylene are now possible in > 60%, > 90% and > 80% yield, respectively. Key reaction steps are metal-catalyzed dehydrogenation/hydrogenation, acid-catalyzed dehydration, carbonyl-induced dehydration, metal-catalyzed direct hydrogenolysis and deoxydehydration. The 2-Propanol and small-ring compounds (oxetane, propylene oxide) cannot be produced from glycerol by combinations of these key reaction steps, and no catalytic system is known at present, although the conversion reactions have minus ∆G°.

Original languageEnglish
Pages (from-to)3879-3903
Number of pages25
JournalResearch on Chemical Intermediates
Volume44
Issue number7
DOIs
Publication statusPublished - 2018 Jul 1

Keywords

  • Biodiesel
  • Catalysis
  • Glycerol
  • Hydrodeoxygenation

ASJC Scopus subject areas

  • Chemistry(all)

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