4.5 Article

From Gas to Liquid Phase Sulfidation: An IR Spectroscopy Study

Journal

CATALYSIS LETTERS
Volume 142, Issue 6, Pages 736-743

Publisher

SPRINGER
DOI: 10.1007/s10562-012-0813-5

Keywords

Hydrotreatment; Sulfide catalyst structure; Liquid phase sulfidation; Effect of carbon; Carbon monoxide adsorption; Thiophene HDS

Funding

  1. Total France
  2. ANRT

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A side by side characterization of gas and liquid phase activation of a CoMo/Al2O3 hydrodesulfurization (HDS) catalyst is reported using thiophene HDS as a test reaction and CO adsorption monitored by infrared spectroscopy. The liquid phase sulfidation (high pressure, dimethyldisulfide) leads to the formation of CoMoS sites with higher intrinsic activity compared to the gas phase (H2S/H-2).

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