Treatment and separation of petroleums and related materials

Details Treatment and separation of petroleums and related materials Treatment and separation of petroleums and related materials

1984-05-08

1985-05-07

Gantz, Delbert E.

Mineral oils: processes and products

Fractionation

Deasphalting

208251R, C10C 300, C10C 308

Patent

active

045156859

ABSTRACT:
Herein are disclosed a method and apparatus whereby all petroleums and/or related materials, including natural materials (such as, petroleum gas, crude oils, bitumens, crude oils from oil sands and oil shales, tars from sands, etc.), fraction or fractions derived from said natural materials, and refinery streams and products, are refined and separated to remove their asphaltic constituents (asphaltenes, resins, etc.) and/or nonhydrocarbon constituents (metals, heteroatoms, etc.), by contacting said petroleums and/or said related materials with added asphaltenes, precipitating said constituents together with said added asphaltenes, and then separating the mixture of the resultant precipitates and said added asphaltenes to recover an oil (and/or gas) having a reduced concentration of said constituents.
Said mixture can also be separated to remove its residual volatile constituents to produce asphalts; or it can be treated by a low molecular weight paraffinic solvent to recover asphaltenes, which would have numerous potential usages although they have not been available commerically.

REFERENCES:
patent: 2189844 (1940-02-01), Starr
patent: 2793168 (1957-05-01), Corneil et al.
patent: 2853426 (1958-09-01), Peet
patent: 2895902 (1959-07-01), Peet
patent: 3380912 (1968-04-01), Paterson
patent: 3798157 (1974-03-01), Manzanilla et al.

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