ALUMINA-SUPPORTED SULFIDED CATALYSTS .5. EFFECT OF P AND F ON THE CATALYTIC ACTIVITY OF HYDRODESULFURIZATION SULFIDED CATALYSTS

Citation
An. Startsev et al., ALUMINA-SUPPORTED SULFIDED CATALYSTS .5. EFFECT OF P AND F ON THE CATALYTIC ACTIVITY OF HYDRODESULFURIZATION SULFIDED CATALYSTS, Kinetics and catalysis, 35(4), 1994, pp. 552-558
Citations number
33
Categorie Soggetti
Chemistry Physical
Journal title
ISSN journal
00231584
Volume
35
Issue
4
Year of publication
1994
Pages
552 - 558
Database
ISI
SICI code
0023-1584(1994)35:4<552:ASC.EO>2.0.ZU;2-#
Abstract
Phosphorus and fluorine additives incorporated into the Ni-Mo/Al2O3 su lfided catalysts on various stages of their preparation considerably l ower the activation energy of the thiophene hydrogenolysis reaction. T he interaction of promoting additives with the active component of the hydrodesulfurization catalysts is proved by XPS and P-31 NMR. The eff ect of additives is discussed in terms of a synchronous mechanism invo lving interaction of reacting molecules in the coordination sphere of a bimetallic sulfide compound.