Process for the treatment of a hydrocarbon feedstock

Details Process for the treatment of a hydrocarbon feedstock Process for the treatment of a hydrocarbon feedstock

2005-08-02

2008-11-18

Caldarola, Glenn (Department: 1797)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With subsequent treatment of products

C208S100000, C208S101000, C208S102000, C208S103000, C208S105000, C208S341000, C208S342000, C208S343000, C208S346000

Reexamination Certificate

active

07452458

ABSTRACT:
Process for treatment of a hydrocarbon feedstock that comprises a hydrocarbon-containing liquid phase and hydrogen, in which the feedstock is separated under a pressure P1into a liquid L1and a gas G1, that is compressed and brought into contact with a portion of L1under a pressure P2>2×P1to recover a liquid L2and a hydrogen-rich gas G2; L2is fractionated to obtain a stabilized liquid L4athat is free of LPG and lighter products, a liquid stream of LPG, and a gas stream G4that is recycled, and in which one of gas streams: recompressed G1and G4is in counter-current contact with an unstabilized liquid AL that is obtained from or extracted from L1or L2, whereby this unstabilized liquid is supercooled by at least 10° C. below its bubble point at pressure P2.

REFERENCES:
patent: 4212726 (1980-07-01), Mayes
patent: 4333820 (1982-06-01), Scheifele, Jr. et al.

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