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2 176 659

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Application

2000101154/04, 2000-01-13

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Start date

2000-01-13

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Actual filing date

2000-01-13

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Published

2001-12-10

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Inventor

Khajrudinov I.R.Sultanov F.M.Mingaraev S.S.Ismagilov M.A.Tsegel'Skij V.G.Teljashev Eh.G.

(73)

Holder

Institut Problem Neftekhimpererabotki An Respubliki Bashkortostan

METHOD OF DEASPHALTIZATION OF PETROLEUM RESIDUES Russian patent published in 2001 - IPC

Abstract RU 2176659 C2

FIELD: production of oils and raw materials during catalytic cracking, particularly, petroleum refining industry. SUBSTANCE: petroleum residues are treated with propane, butane or mixtures thereof. Solvent is then regenerated from deasphaltizate and asphalt solutions. Solvent residues are steamed in stripping towers and gaseous part of solvent is subsequently compressed in jet compressor working body of which is some stream of liquid solvent fed into extraction column by pump out of liquid solvent container. EFFECT: simplified process flowsheet due to elimination of use of high-pressure pump operating at elevated pressure. 1 dwg

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RU 2 176 659 C2

Authors

Khajrudinov I.R.

Sultanov F.M.

Mingaraev S.S.

Ismagilov M.A.

Tsegel'Skij V.G.

Teljashev Eh.G.

Dates

2001-12-10—Published

2000-01-13—Filed

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