Patent ID: 6436352
Filing Date: 2002-08-20
Classification: B01D,C01B,Y02C,Y02P

Abstract:
An apparatus for the removal of gaseous impurities from an impure hydrogen gas stream contaminated with carbon monoxide, and with one or more additional impurities selected from the group consisting of carbon dioxide, oxygen, nitrogen, water, methane, and mixtures thereof, to produce thereby a purified gas stream; said apparatus comprising:A. a first reaction zone containing elemental nickel and nickel-carbonyl supported on a carrier selected from the group consisting of silicate, titanium silicate and silica; B. means for maintaining said first reaction zone under nickel-carbonyl forming conditions to convert thereby substantially all the carbon monoxide to nickel carbonyl, thereby producing an effluent stream from the first reaction zone which effluent stream is a partially purified hydrogen gas stream; C. a second reaction zone containing Ti2Ni; D. means for conveying the partially purified hydrogen gas stream from the first reaction zone to the second reaction zone; and E. means for maintaining the second reaction zone under methane reacting conditions to produce a purified hydrogen gas stream.