Influence of the support on sulfur poisoning and regeneration of Ru catalysts probed by sulfur K-edge X-ray absorption spectroscopy

Influence of Sulfuric Acid on the Performance of Ruthenium‐based Catalysts in the Liquid‐Phase Hydrogenation of Levulinic Acid to γ‐Valerolactone

“…The ability of ZrO 2 to scavenge S‐containing compounds was previously observed for SO 2 and H 2 S . For H 2 S, a comparison of Ru/C and Ru/ZrO 2 showed the formation of Ru sulfides and fast catalyst deactivation on Ru/C, and both sulfide and sulfate formation and slower deactivation for Ru/ZrO 2 .…”

X-ray spectroscopy for chemistry in the 2-4 keV energy regime at the XMaS beamline: ionic liquids, Rh and Pd catalysts in gas and liquid environments, and Cl contamination in γ-Al2O3

“…Developing methods (see, for instance, Tamenori, 2010Tamenori, , 2013Tamenori et al, 2011) or sample environment suitable for the study of any given process at these energies is therefore subject to considerably more constraints (both in terms of design and materials) than is the case at high energies. However, several examples exist for the study of gas-solid chemistry and catalysis (see, for example, van der Eerden et al., 2000;Hayter et al, 2002;Dathe et al, 2005;Nurk et al, 2013;Bolin et al, 2013;Kö nig et al, 2014) and studies using a liquid media (Brown et al, 2012;Fulton et al, 2012;Pin et al, 2013).…”

“…Developing methods (see, for instance, Tamenori, 2010Tamenori, , 2013Tamenori et al, 2011) or sample environment suitable for the study of any given process at these energies is therefore subject to considerably more constraints (both in terms of design and materials) than is the case at high energies. However, several examples exist for the study of gas-solid chemistry and catalysis (see, for example, van der Eerden et al., 2000;Hayter et al, 2002;Dathe et al, 2005;Nurk et al, 2013;Bolin et al, 2013;Kö nig et al, 2014) and studies using a liquid media (Brown et al, 2012;Fulton et al, 2012;Pin et al, 2013).The XMaS beamline at the ESRF was originally conceived as an instrument to study X-ray magnetic scattering (Paul et al, 1995;Brown et al, 2001) and is situated on the soft end of an ESRF dipole magnet (critical energy = 9.8 keV). At this time there was much interest in the scattering community for actinide magnetism (see, for example, Isaacs et al, 1989) and for resonant diffraction at the U M 5 absorption edge ($ 3.55 keV).…”

Integrated Desulfurization and Methanation Concepts for SNG Production

“…The particle size of the Ru/Al 2 O 3 catalyst that was used in the reported studies on periodic regeneration [50,51] was rather large (>20 nm), and thus utilization of Ru was low. The particle size of the Ru/Al 2 O 3 catalyst that was used in the reported studies on periodic regeneration [50,51] was rather large (>20 nm), and thus utilization of Ru was low.…”