Patent ID: 7938868
Filing Date: 2011-05-10
Classification: B01D,B01J,C01B

Abstract:
1. A staged system for producing purified hydrogen from a reaction gas mixture comprising a hydrocarbon compound, said staged system comprising at least two respectively upstream/downstream stages each including an optionally catalytic reactor followed by a separator including a space in which the gas mixture flows, in contact with at least one hydrogen extraction membrane and a space for collecting hydrogen, the reactor of the upstream stage being connected to a source of reaction gas mixture, the flow space of the separator of the upstream stage being connected to the reactor of the downstream stage while the hydrogen extraction/collecting spaces of both separators are connected to a hydrogen collecting circuit common to both stages, said staged system further comprising two coaxial enclosures which delimit between them an intermediate space divided into a plurality of annular compartments which form reactors, by annular partitions, in that the inner enclosure is divided into a plurality of gas mixture flow compartments via hydrogen separation modules respectively positioned between couples of corresponding consecutive annular partitions, each of the flow compartments communicating via two opposite ports provided in the inner enclosures, with two consecutive annular compartments.