Selective hydrodesulfurization of 4,6-dimethyl dibenzothiophene in the major presence of naphthalene over molybdenum based binary and tertiary sulfides catalysts
- Kyushu Univ., Fukuoka (Japan); and others
It has been clarified in previous papers that the sufficient desulfurization of the refractory sulfur species in the diesel fuel such as 4-methyldibenzothiophene and 4,6-dimethyldibenzothiophene (4,6-DMDBT) should be achieved in its sulfur level of 0.05 % which is currently regulated. Such refractory species have been proved to be desulfurized through the hydrogenation of one or both phenyl rings in the substrate to moderate the steric hindrance of methyl groups located in the neighbors of the sulfur atom. Hydrogenation of neighboring phenyl rings should competitive with the aromatic partners in the hydrogenation step, being severely hindered. The diesel fuel tends to be more aromatic due to crude of more aromaticity and more blending of cracked oil. The present study describes the desulfurization of dibenzothiophene over several metal catalysts.
- OSTI ID:
- 460131
- Report Number(s):
- CONF-950801--
- Journal Information:
- Preprints of Papers, American Chemical Society, Division of Fuel Chemistry, Journal Name: Preprints of Papers, American Chemical Society, Division of Fuel Chemistry Journal Issue: 4 Vol. 40; ISSN 0569-3772; ISSN ACFPAI
- Country of Publication:
- United States
- Language:
- English
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