Mineral oils: processes and products – Refining – Gum or gum former removal
Patent
1977-09-30
1978-08-29
Crasanakis, George
Mineral oils: processes and products
Refining
Gum or gum former removal
208144, C10G 2302
Patent
active
041102053
ABSTRACT:
A process for hydrotreating (hydroprocessing) hydrocarbons and mixtures of hydrocarbons utilizing a catalytic composite comprising a combination of a nickel component and a tungsten component with a silica-alumina carrier material wherein said carrier material is co-gelled silica-alumina consisting of from about 43 percent to about 57 percent by weight of alumina and from about 57 percent to 43 percent by weight silica and wherein said components are present in amounts sufficient to result in the composite containing, on an elemental basis, about 2 to about 10 percent by weight of the nickel component and about 8 to about 20 percent by weight of the tungsten component, in which process there is effected a chemical consumption of hydrogen. Key features of the subject composite are the criticality of the alumina content of the carrier material and the facility of using a co-gelled silica-alumina carrier material. The principal utility of the subject composite is in the hydrocracking of hydrocarbons. A specific example of the catalyst disclosed is a combination of nickel and tungsten with a co-gelled silica-alumina carrier material containing 50 weight percent alumina in amounts sufficient to result in the composite containing, on an elemental basis, about 7 to about 9 weight percent nickel and about 17 to about 19 weight percent tungsten. Other hydrocarbon hydroprocesses are directed toward the hydrogenation of aromatic nuclei, the ring-opening of cyclic hydrocarbons, desulfurization, denitrification, hydrogenation, etc.
REFERENCES:
patent: 2953519 (1960-09-01), Bercik et al.
patent: 3696160 (1972-10-01), Chomyn
patent: 3931048 (1976-01-01), Hilfman
patent: 3953323 (1976-04-01), Nolan, Jr. et al.
Crasanakis George
Cutts, Jr. John G.
Hoatson Jr. James R.
Page II William H.
UOP Inc.
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