The inÑuence of the acidity of ultrastable Y (USY) zeolite-supported tungsten or nickel sulÐde catalysts, prepared at di †erent pH values, on thiophene hydrodesulfurization activity has been studied. The acidity a †ects the catalystsÏ deactivation. The results of the initial activity clearly show a
✦ LIBER ✦
Characterization of Tungsten-Modified Ultrastable Y Zeolite Catalysts and Their Activity in Thiophene Hydrodesulfurization
✍ Scribed by R. Cid; J. Neira; J. Godoy; J.M. Palacios; S. Mendioroz; A.L. Agudo
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 769 KB
- Volume
- 141
- Category
- Article
- ISSN
- 0021-9517
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## Abstract A series of cobalt‐molybdenum‐alumina catalysts was fabricated using as carriers λ‐Al~2~O~3~ doped with various amounts of sodium. Over these surfaces the H.D.S. of thiophene has been studied. A considerable decrease in the catalytic activity was observed with increasing Na^±^ content.