Water vapor transfer device for fuel cell reformer
First Claim
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1. A fuel processor for the production of hydrogen from a hydrocarbon fuel, comprising:
- (a) a reactor for the production of hydrogen-containing reformate using an oxidant, water and hydrocarbon fuel; and
(b) a water transfer device that transfers water vapor from the reformate produced by said reactor to a reactant used by said reactor, comprising a water-transfer membrane.
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Abstract
A hydrocarbon fuel reformer that is supplied with water vapor extracted from the reformer'"'"'s effluent stream. In particular, the present invention provides a power plant fuel processor for the production of hydrogen from a hydrocarbon fuel, comprising:
- (a) a reactor for the production of hydrogen using an oxidant, water and hydrocarbon fuel; and
- (b) a water transfer device that transfers water vapor from the reformate produced by said reactor to the oxidant used by said reactor, comprising a water-transfer membrane.
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Citations
24 Claims
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1. A fuel processor for the production of hydrogen from a hydrocarbon fuel, comprising:
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(a) a reactor for the production of hydrogen-containing reformate using an oxidant, water and hydrocarbon fuel; and
(b) a water transfer device that transfers water vapor from the reformate produced by said reactor to a reactant used by said reactor, comprising a water-transfer membrane. - View Dependent Claims (2, 3, 4, 5, 7, 10, 24)
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6. A fuel processor for the production of hydrogen from a hydrocarbon fuel, comprising:
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(a) a reactor having a reactant input, and a reformate output; and
(b) a water transfer device comprising (i) a transfer device input connected to said reformate output of the reactor, (ii) a transfer device output connected to said reactant input of the reactor, and (iii) a water-transfer membrane;
wherein said water transfer device transfers water from said reformate output to said reactant input. - View Dependent Claims (8, 9, 11, 12, 13)
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- 14. A method for humidifying a reactant for a fuel processor that makes a hydrogen-containing reformate, comprising the transfer of water vapor from said reformate to said reactant using a water transfer device comprising a water transfer membrane.
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17. A water transfer device for the transfer of water vapor from a primary gas to a secondary gas in a fuel cell power plant, having a primary gas inlet, a primary gas outlet, a secondary gas inlet and a secondary gas outlet, comprising:
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(a) a primary gas inlet;
(b) a primary gas outlet;
(c) a secondary gas inlet;
(d) a secondary gas outlet;
(e) a conduit having an inner void and outer surface, the walls of which comprise a water transfer membrane material, wherein one end of said conduit is connected to said primary gas inlet, and the other end of said conduit is connected to said primary gas outlet so as to allow for the flow of a primary gas through said inner void; and
(f) a housing which encloses and provides a void space around at least a portion of the outer surface of said conduit, wherein said housing has a secondary gas inlet and a secondary gas outlet allowing for the flow of a secondary gas through said void space;
wherein secondary gas flowing through the void space of said housing passes over an outer surface of said conduit, but does not substantially mix with primary gas flowing through the inner void of said conduit. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification