Fuel cell power plant used as reformate generator
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0058665
(2002-01-28)
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발명자
/ 주소 |
- Margiott,Paul R.
- Rohrbach,Carl
- Gorman,Michael E.
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
5 |
초록
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A method for operating a fuel cell power plant to provide end-use electricity, end-use heat and end-use reformate includes the steps of providing a fuel cell power plant that consumes reformate to provide electricity and heat, said fuel cell power plant having a nominal reformate flow rate and inclu
A method for operating a fuel cell power plant to provide end-use electricity, end-use heat and end-use reformate includes the steps of providing a fuel cell power plant that consumes reformate to provide electricity and heat, said fuel cell power plant having a nominal reformate flow rate and including a fuel processor system for generating reformate from a hydrocarbon fuel; operating the fuel processor system so as to provide a reformate flow at a rate greater than the nominal reformate flow rate; operating the fuel cell power plant using a first portion of the reformate flow to generate the electricity and the heat, the first portion being less than or equal to the nominal reformate flow rate; and providing a second portion of the reformate flow as the end-use reformate.
대표청구항
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What is claimed is: 1. A method for operating a fuel cell power plant to provide end-use electricity, end-use heat and end-use reformate, comprising the steps of: providing a fuel cell power plant that consumes reformate to provide electricity and heat, said fuel cell power plant having a nominal r
What is claimed is: 1. A method for operating a fuel cell power plant to provide end-use electricity, end-use heat and end-use reformate, comprising the steps of: providing a fuel cell power plant that consumes reformate to provide electricity and heat, said fuel cell power plant having a nominal reformate flow rate and including a fuel processor system for generating reformate from a hydrocarbon fuel; operating said fuel processor system so as to provide a reformate flow at a rate greater than said nominal reformate flow rate; operating said fuel cell power plant using a first portion of said reformate flow to generate said electricity and said heat, said first portion being less than or equal to said nominal reformate flow rate; and providing a second portion of said reformate flow as said end-use reformate, wherein said fuel cell power plant includes a fuel cell stack, and said second portion is separated from said first portion upstream of said fuel cell stack. 2. A method for operating a fuel cell power plant to provide end-use electricity, end-use heat and end-use reformate, comprising the steps of: providing a fuel cell power plant that consumes reformate to provide electricity and heat, said fuel cell power plant having a nominal reformate flow rate and including a fuel processor system for generating reformate from a hydrocarbon fuel; operating said fuel processor system so as to provide a reformate flow at a rate greater than said nominal reformate flow rate; operating said fuel cell power plant using a first portion of said reformate flow to generate said electricity and said heat, said first portion being less than or equal to said nominal reformate flow rate; and providing a second portion of said reformate flow as said end-use reformate, wherein said second portion is selectively provided as end use reformate and further comprising the steps of sensing when said second portion is being provided as end-use reformate and selectively operating said fuel processor system to provide a first reformate flow rate when said second portion is not being provided as end use reformate, and to provide a second reformate flow rate greater than said first reformate flow rate when said second portion is being provided as end use reformate. 3. The method of claim 2, wherein said fuel cell power plant includes a fuel cell and wherein said second portion is separated from fuel cell power plant exhaust gas downstream of said fuel cell. 4. The method of claim 1, further comprising the step of storing said second portion. 5. A method for operating a fuel cell power plant to provide end-use electricity, end-use heat and end-use reformate, comprising the steps of: providing a fuel cell power plant that consumes reformate to provide electricity and heat, said fuel cell power plant having a nominal reformate flow rate and including a fuel processor system for generating reformate from a hydrocarbon fuel; operating said fuel processor system so as to provide a reformate flow at a rate greater than said nominal reformate flow rate; operating said fuel cell power plant using a first portion of said reformate flow to generate said electricity and said heat, said first portion being less than or equal to said nominal reformate flow rate; and providing a second portion of said reformate flow as said end-use reformate, wherein said fuel processor system includes a shift converter and said fuel cell power plant includes a fuel cell stack, and further comprising the step of separating said second portion from said first portion downstream of said shift converter and upstream of said fuel cell stack. 6. The method of claim 2, wherein said second portion contains water vapor, and further comprising the step of separating said water vapor from said second portion to provide said end use reformate and a recovered water portion, and returning at least a portion of said recovered water portion to said fuel cell power plant. 7. A fuel cell power plant for providing end-use electricity, end-use heat and end-use reformate, comprising: a fuel cell that consumes a reformate to provide electricity and heat; a fuel processor system for generating said reformate from a hydrocarbon fuel, said fuel cell being communicated to receive said reformate from said fuel processor system; and a bleed flow path downstream of said fuel processor system and upstream of the fuel cell for conveying a portion of said reformate to an end use application. 8. The fuel cell power plant of claim 7, further comprising a control member adapted to detect flow in said bleed flow path, said control member being adapted to increase output of said fuel processor system upon detecting flow in said bleed flow path. 9. The fuel cell power plant of claim 7, further comprising a water recovery device positioned along said bleed flow path and communicated with said fuel cell power plant for returning recovered water to said fuel cell power plant.
이 특허에 인용된 특허 (5)
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Cownden Ryan,CAX ; Eiche Michael,CAX ; Louie Craig,CAX ; Watkins David S.,CAX, Fuel cell electric power generation system.
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Sederquist ; Richard A., Fuel cell power plant and method for operating the same.
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Scheffler Glenn W. (Tolland CT), Fuel cell power plant fuel control.
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Eisman Glenn A ; McElroy James F. ; Peschke Norman, Fuel cell system with hydrogen purification subsystem.
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Leonard J. Bonville, Jr. ; Ned E. Cipollini ; Jay Garow ; Roger R. Lesieur ; Donald F. Szydlowski ; Zebulon D. Vance ; Douglas J. Wheeler, Reformate fuel treatment system for a fuel cell power plant.
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