Patent ID: 8715617
Filing Date: 2014-05-06
Classification: C01B

Abstract:
1. A hydrogen production process comprising: introducing reactants comprising steam and a hydrocarbon feed into a first reactor wherein the hydrocarbon feed comprises methane and at least one C2-C5 hydrocarbon, reacting the reactants in the presence of a reforming catalyst under reaction conditions sufficient to form a reformate comprising H introducing an oxygen-containing stream and the reformate from the first reactor into a second reactor, reacting the oxygen and the reformate in the presence of a second reforming catalyst under reaction conditions sufficient to form additional H recovering heat from the reformate from the second reactor thereby cooling the reformate; reacting the cooled reformate in the presence of a shift catalyst under reaction conditions sufficient to shift the reformate to form additional H recovering heat from the shifted reformate thereby cooling the shifted reformate; removing H separating the water-depleted reformate into a CO separating the pressure swing adsorber feed stream in a plurality of at least 4 pressure swing adsorption beds, each adsorption bed containing an adsorbent selective for the secondary gas components thereby forming a H introducing a first portion of the tail gas stream into at least one of the first reactor, and the second reactor; and introducing a second portion of the tail gas stream into at least one of the plurality of pressure swing adsorption beds.