Mineral oils: processes and products – Refining – Sulfur removal
Patent
1986-07-21
1988-03-01
Davis, Curtis R.
Mineral oils: processes and products
Refining
Sulfur removal
208251H, 208254H, 208217, 208108, 502220, C10G 4504, C10G 4560
Patent
active
047284170
ABSTRACT:
An additive comprising a mixture of at least one decomposable molybdenum compound selected from the group consisting of molybdenum dithiophosphates and molybdenum dithiocarbamates and at least one decomposable nickel compound selected from the group consisting of nickel dithiophosphates and nickel dithiocarbamates is mixed with a hydrocarbon-containing feed stream. The hydrocarbon-containing feed stream containing the additive is then contacted in a hydrofining process with a catalyst composition comprising a support selected from the group consisting of alumina, silica and silica-alumina and a promoter comprising at least one metal selected from Group VIB, Group VIIB and Group VIII of the Periodic Table. The introduction of the inventive additive may be commenced when the catalyst is new, partially deativated or spent with a beneficial result occuring in each case.
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Aldag, Jr. Arthur W.
Kukes Simon G.
Parrott Stephen L.
Davis Curtis R.
Myers Helane
Phillips Petroleum Company
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