Mineral oils: processes and products – Refining – Sulfur removal
Patent
1975-07-10
1976-08-17
Crasanakis, G. J.
Mineral oils: processes and products
Refining
Sulfur removal
208216, 208217, 208216, C10G 2302
Patent
active
039752593
ABSTRACT:
A hydrocarbon feedstock, such as a residum from atmospheric or vacuum distillation columns containing large quantities of sulfur is combined with a hydroconversion catalyst having a nominal particle size of less than 10 microns to form a suspension. The resulting suspension and a hydrogen-containing gas are fed upwardly through a contact zone in plug-flow at an elevated temperature and pressure and at a weight hourly space velocity of between 200 and 50,000 kg. of oil per kg. of catalyst per hour. The resulting product containing the catalyst suspended therein is continuously withdrawn from the contact zone. The normally gaseous materials are separated from the liquid product having a substantially reduced sulfur content. The catalyst is carried through the entire process suspended in liquid in a single pass without the necessity of recycling or regeneration and remains in the desulfurized product.
REFERENCES:
patent: 2892773 (1959-06-01), Hirsch et al.
patent: 2968614 (1961-01-01), Brooks et al.
patent: 3558474 (1971-01-01), Gleim et al.
patent: 3785967 (1974-01-01), VAN Klinken
patent: 3849292 (1974-11-01), Gleim
Air Products and Chemicals Inc.
Crasanakis G. J.
Dannells, Jr. Richard A.
Moyerman Barry
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