Deep hydrodesulfurization of hydrocarbon feedstreams

Mineral oils: processes and products – Refining – Sulfur removal

Reexamination Certificate

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C208S20800M, C208S209000, C208S213000, C208S21600R, C208S243000, C208S244000

Reexamination Certificate

active

07959795

ABSTRACT:
The distillate catalytic hydrodesulfurization of hydrocarbon fuels wherein the optimum hydrogen treat gas rate to maximize desulfurization is determined and introduced into the reaction zone to maintain a controlled amount of hydrogen at the surface of the catalyst during hydrodesulfurization.

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Ho, T.C. (2003). Journal of Catalysis, 219, 442-451.
Brune, M.; Sawady W.; Reimert, R., “Desulfurization of liquid fuels using partial vaporization and associated hydrogenation in the gas phase Entschwefelung flussiger brennstoffe mittels partieller verdampfung und anschliessender hydrierung in der gasphase”, Chemie-Ingenieur-Technik 78/9, 1324 (Sep. 2006). ISSN: 0009-286X.
Murali, C.; Voolapalli, R.K.; Ravichander, N.; Gokak, D.T.; Choudary, N.V., “Trickle bed reactor model to simulate the performance of commercial diesel hydrotreating unit”, Fuel 86 (2007) pp. 1176-1184.
Collins, George M.; Hess, Richard K.; Hook, Bruce D.; Akgerman, Aydin, “Modeling of Trickle Bed Reactors at High Temperatures and Pressures with Volatile Feeds”, Kinetics, Catalysis and Reaction Engineering Laboratory, Department of Chemical Engineering, Texas A&M University.

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