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US 4,810,365 AGranted
Hydrogenation of mineral oils contaminated with chlorinated hydrocarbons
AssigneeVeba Oel AG
InventorsWerner Dohler, Rolf Holighaus, Klaus Niemann
Life of this patent
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Abstract
Halogen-containing oils and hydrocarbons are treated on an industrial scale whereby the mineral base oils comprising the main component of the oils hydrocarbons can be reused. The oils are subjected to a high pressure hydrogenation under typical conditions of liquid phase hydrogenation or of combined liquid-phase and gas-phase hydrogenation, at hydrogen pressures of 20-325 bar, temperatures of 250.degree.-500.degree. C., and gas/oil ratios of 100-300 m.sup.3 per metric ton at STP.
Claims20
A method of reacting a halogen-containing oil or a halogen-containing hydrocarbon feed material, comprising the step of:
- liquid phase hydrogenating said feed material at a hydrogen pressure between about 20-325 bar, a temperature between about 250.degree.-500.degree. C. and a gas/oil ratio of 100-3,000 m.sup.3 per metric ton at STP, wherein said hydrogenating step comprises slurry phase hydrogenation or the combination of slurry phase and catalytic hydrogenation using a fixed bed catalyst.
Dependencies are inferred from the claim text.