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US 7,638,040 B2Granted
Process for upgrading contaminated hydrocarbons
AssigneeUop LLC
InventorsMark Van Wees, Robert B. James, Jr., Tom N. Kalnes, Gavin P. Towler
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Abstract
A process for the recovery and purification of a contaminated hydrocarbons, wherein the contamination includes metals, finely divided solids and non-distillable components. The process further includes hydroprocessing the oil to remove deleterious compounds, to produce high quality reusable lubricants, solvents and fuels and to improve the quality of water byproduct.
Claims13
A process for the conversion of contaminated hydrocarbons comprising:
- contacting the contaminated hydrocarbons with a hot hydrogen rich gas stream in a flash feed separator thereby generating a first vapor stream, and a first liquid stream;
- stripping the first liquid stream in a stripping column using a stripping gas, thereby generating a second vapor stream, and a residue stream;
- condense a portion of the second vapor stream to a vapor-liquid stream and separate the vapor-liquid stream, thereby creating a recovered oil stream and a third vapor stream;
- contacting the first vapor stream and a portion of the recovered oil stream with a hydrodemetallization catalyst in a hydrodemetallization reactor operated at hydrodemetallization conditions, thereby generating a hydrogen-hydrocarbon stream with lower metals content;
- contacting the hydrogen-hydrocarbon stream with a hydroprocessing catalyst in a hydroprocessing reactor operated at hydroprocessing conditions, thereby generating a hydrocarbon stream with a higher hydrogen content;
- condensing at least a portion of the higher hydrogen content hydrocarbon stream, thereby generating a hydrogen vapor stream and a second liquid stream comprising hydrocarbons;
- recovering the second liquid stream.
4 more elements
Dependencies are inferred from the claim text.