Hydrodesulfurization of dibenzothiophene over Mo-based dispersed catalysts
- Pennsylvania State Univ., University Park, PA (United States); and others
The hydrodesulfurization (HDS) and hydrocracking (HC) activity and selectivity of several Mo-based catalyst precursors have been examined in model compound reactions of dibenzothiophene (DBT). Reactions were carried out at 400{degrees}C with 6.9 MN of H{sub 2} for 30 min. A metal loading of 0.5 mol% (based on DBT) in tridecane as solvent resulted in a low conversion rate and only hydrogenation products. Even the addition of sulfur to the catalyst in a 4:1 molar ratio only led to a minor increase in conversion and HDS. However, a change in the molar ratio of solvent to model compound from 1:1 to 19:1 and a metal loading of 33.16 mol% lead to a dramatic increase in conversion, HDS, and HC. Furthermore, the use of higher boiling point solvents such as hexadecane and octadecane had a beneficial effect on both HDS and HC. The addition of sulfur in a 6:1 ratio of S:metal to the higher-metal-loaded runs had varying effects that were dependent upon the catalyst used.
- OSTI ID:
- 214746
- Report Number(s):
- CONF-950801-; TRN: 96:000922-0218
- Resource Relation:
- Conference: 210. national meeting of the American Chemical Society (ACS), Chicago, IL (United States), 20-25 Aug 1995; Other Information: PBD: 1995; Related Information: Is Part Of 210th ACS national meeting. Part 1 and 2; PB: 1866 p.
- Country of Publication:
- United States
- Language:
- English
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