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A comparative temperature-programmed sulfiding study of the HDS catalysts MoO sub 3 /Al sub 2 O sub 3 and WO sub 3 /Al sub 2 O sub 3

Conference · · American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA)
OSTI ID:5111827

The most important HDS catalysts are Co-Mo/Al{sub 2}O{sub 3}, Ni-Mo/Al{sub 2}O{sub 3} and Ni-W/Al{sub 2}O{sub 3}. These catalysts are usually prepared as alumina-supported oxides and are sulfided in situ. This process of sulfiding is not completely understood up to now. To understand the sulfiding processes on commercial catalysts it is crucial to investigate the sulfiding process of MoO{sub 3}/Al{sub 2}O{sub 3} and WO{sub 3}/Al{sub 2}O{sub 3}. The TPS technique was chosen because it mimics the practical sulfiding process, and sulfiding of all species is observed quantitatively. The first TPS experiments were performed by Nag et al. Recently, TPS has been successfully applied to MoO{sub 3}/Al{sub 2}O{sub 3}, CoO/Al{sub 2}O{sub 3}, CoO-MoO{sub 3}/Al{sub 2}O{sub 3}, NiO-WO{sub 3}/Al{sub 2}O{sub 3} and Re{sub 2}O{sub 7}/Al{sub 2}{sub 3}.

OSTI ID:
5111827
Report Number(s):
CONF-8704347--
Journal Information:
American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA), Journal Name: American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA) Vol. 32:2; ISSN 0569-3799; ISSN ACPCA
Country of Publication:
United States
Language:
English