Patent ID: 7380413
Filing Date: 2008-06-03
Classification: C01B,F25J,Y10S

Abstract:
1. A method which may be used for simultaneously producing hydrogen and carbon monoxide, said method comprising: a) receiving a synthesis as from a synthesis gas production unit, wherein said synthesis gas comprises hydrogen and carbon monoxide; b) decarbonating said synthesis gas in a decarbonation unit; c) desiccating said synthesis gas in a desiccation unit; d) cryogenically separating said desiccated synthesis gas in a cryogenic separation unit; and e) recycling a gas, containing at least about 60% hydrogen, upstream of said decarbonation unit and downstream of said synthesis gas production unit, wherein said gas to be recycled comprises at least one member selected from the group consisting of: further comprising regenerating said desiccation unit with said gas containing at least about 60% hydrogen prior to sending said gas containing at least about 60% hydrogen upstream of said decarbonation unit.