Authors: Erwan Le Guludec Laetitia Oliviero Jean Pierre Gilson Françoise Maugé Michaël Rebeilleau Valentina De Grandi Sander van Donk
Publish Date: 2012/04/07
Volume: 142, Issue: 6, Pages: 736-743
Abstract
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/H2As compared to the classical gas phase H2S/H2 the liquid phase sulfidation high pressure feed dimethyldisulfide changes drastically the spectrum of CO adsorbed on the CoMo/Al2O3 the band attributed to CO in interaction with CoMoS sites is downward shifted −17 cm−1 while its intensity is decreased
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