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Thiophene hydrodesulfurization activity of alumina supported heteropoly compounds: nickel effect |
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| Authors: | Radostina Palcheva Alla Spojakina Georgi Tyuliev Kveta Jiratova and Lachezar Petrov |
| Institution: | (1) Institute of Catalysis, Bulgarian Academy of Sciences, Acad,G. Bonchev str., Bl.11, 1113 Sofia, Bulgaria;(2) Institute of Catalysis, Bulgarian Academy of Sciences, Acad,G. Bonchev str., Bl.11, 1113 Sofia, Bulgaria;(3) Institute of Catalysis, Bulgarian Academy of Sciences, Acad,G. Bonchev str., Bl.11, 1113 Sofia, Bulgaria;(4) Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic,, 165 02 Prague 6, Czech Republic;(5) Institute of Catalysis, Bulgarian Academy of Sciences, Acad,G. Bonchev str., Bl.11, 1113 Sofia, Bulgaria |
| Abstract: | Summary Hydrotreating nickel tungsten catalysts have been prepared by impregnation of g-alumina with solutions of H3PW12O40 acid and its Ni salt. It is shown that the initial heteropolyanion, its lacunar analog, nickel substituted heteropolyanion and other new formed phases are present on the surface. The thiophene conversion is related to the presence of mixed NiWS phase and to the close cooperation between WS2 and NiSx phases. |
| Keywords: | IR HDS H3PW12O40 XPS |
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