Patent ID: 7452458

Claim:
A process for the treatment of a hydrocarbon feedstock comprising a hydrocarbon-containing liquid phase and a hydrogen-rich gaseous phase, said process comprising a) separating the feedstock into a liquid L 1 and a gas G 1 , under a pressure P 1 , b) compressing at least a portion of G 1 to obtain a gas stream G 1 * and contacting said gas stream G 1 * with at least a portion of L 1 under a pressure P 2 >2×P 1 , so as to recover a liquid L 2 and a hydrogen-rich gas G 2 , c) fractionating at least a fraction of L 2 to obtain at least: a stabilized liquid L 4 a that is essentially free of LPG (liquid petroleum gases) and lighter products, a light liquid stream L 4 b that essentially comprises LPG, and a gas stream G 4 that is at least partly recycled, and wherein gas G 1 *, optionally precooled by itself or mixed with a portion of L 1 to carry out a first recovery of LPG, is subjected to counter-current contact with an unstabilized liquid AL 1 comprising at least in part of L 1 , AL 1 being cooled to below +10° C. and supercooled by at least 30° C. below its bubble point at the contact pressure.