Process for the treatment of a hydrocarbon feedstock
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United States of America Patent
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Nov 18, 2008
Grant Date -
Feb 2, 2006
app pub date -
Aug 2, 2005
filing date -
Aug 2, 2004
priority date (Note) -
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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 P1 into a liquid L1 and a gas G1, that is compressed and brought into contact with a portion of L1 under a pressure P2>2.times.P1 to recover a liquid L2 and a hydrogen-rich gas G2; L2 is fractionated to obtain a stabilized liquid L4a that is free of LPG and lighter products, a liquid stream of LPG, and a gas stream G4 that is recycled, and in which one of gas streams: recompressed G1 and G4 is in counter-current contact with an unstabilized liquid AL that is obtained from or extracted from L1 or L2, whereby this unstabilized liquid is supercooled by at least 10.degree. C. below its bubble point at pressure P2.
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