Thermal Processing Techniques to Improve Metal Sulfide Mixed Alcohol Catalyst Performance

Jesse Hensley, Martin Menart, Kellen Costelow, Jason Thibodeaux, Matt Yung

Research output: Contribution to conferencePaperpeer-review


Thermal history has been shown to be an important factor in the performance of bulk-precipitated alkali promoted cobalt molybdenum sulfide (K-CoMoSx) mixed alcohol catalysts. Sulfide catalyst precursors derived from ammonium tetrathiomolybdate were decomposed at various temperatures and dwell times, and with/without potassium promoters. When combined with temperature programmed decomposition studies, results suggested that precursors treated at milder conditions yielded more active and selective catalysts, in general. Precursors decomposed in the presence of alkali promoter yielded highly selective catalysts, with lower activity in general. X-ray diffraction showed important differences in materials decomposed with/without alkali promoter, but failed to provide correlations between catalyst morphology and performance in mixed alcohol synthesis.

Original languageAmerican English
Number of pages14
StatePublished - 2011
Event2011 AIChE Annual Meeting, 11AIChE - Minneapolis, MN, United States
Duration: 16 Oct 201121 Oct 2011


Conference2011 AIChE Annual Meeting, 11AIChE
Country/TerritoryUnited States
CityMinneapolis, MN

NREL Publication Number

  • NREL/CP-5100-51258


  • alcohol
  • calcination
  • catalyst research
  • oxidation
  • reduction
  • thermal treatment


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