IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0042231
(2008-03-04)
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등록번호 |
US-8652694
(2014-02-18)
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발명자
/ 주소 |
- Jahnke, Fred C.
- Daly, Joseph M.
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출원인 / 주소 |
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대리인 / 주소 |
Cowan, Liebowitz & Latman, P.C.
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인용정보 |
피인용 횟수 :
0 인용 특허 :
10 |
초록
▼
A water transfer assembly for use in a fuel cell system having an anode and a cathode, the anode being adapted to receive fuel and to output anode exhaust and the cathode being adapted to receive oxidant gas and to output cathode exhaust, the water transfer assembly comprising a first cooling assemb
A water transfer assembly for use in a fuel cell system having an anode and a cathode, the anode being adapted to receive fuel and to output anode exhaust and the cathode being adapted to receive oxidant gas and to output cathode exhaust, the water transfer assembly comprising a first cooling assembly adapted to receive the cathode exhaust and to quench cool the cathode exhaust to recover a first portion of water including non-volatile contaminants from the cathode exhaust and to output cleansed cathode exhaust and the first water portion, and a second cooling assembly adapted to receive the cleansed cathode exhaust and to recover a second water portion from the cleansed cathode exhaust, the second water portion being suitable for humidifying the fuel supplied to the anode.
대표청구항
▼
1. A water transfer assembly incorporated into a molten carbonate fuel cell system having an anode and a cathode, said anode being structured to receive fuel and to output anode exhaust and said cathode being structured to receive oxidant gas and to output cathode exhaust, said water transfer assemb
1. A water transfer assembly incorporated into a molten carbonate fuel cell system having an anode and a cathode, said anode being structured to receive fuel and to output anode exhaust and said cathode being structured to receive oxidant gas and to output cathode exhaust, said water transfer assembly comprising: a first cooling assembly comprising a cooling path that receives said cathode exhaust and spray water and quench cools the cathode exhaust using the spray water, an injector for injecting the spray water into the cathode exhaust in the cooling path, and a first separating member for separating a first water portion and non-volatile contaminants from said cathode exhaust and outputting cleansed cathode exhaust and said first water portion, wherein said first cooling assembly processes the first water portion to remove the non-volatile contaminants from the first water portion and recycles the first water portion after processing for use as the spray water; anda second cooling assembly comprising a cooling member that receives said cleansed cathode exhaust and cools the cleansed cathode exhaust, and a second separating member that separates a second water portion from said cleansed cathode exhaust, said second water portion being suitable for humidifying said fuel supplied to said anode, and said cooling member comprising one of an air fan and a heat exchanger recovering waste heat from the cleansed cathode exhaust,wherein the cleansed cathode exhaust has a temperature below 200° F. before being conveyed to the cooling member of the second cooling assembly, andwherein the water transfer assembly is part of a molten carbonate fuel cell system. 2. The water transfer assembly in accordance with claim 1, wherein said first cooling assembly further comprises a blowdown assembly for removing said non-volatile contaminants from said first water portion outputted by said first separating member and then outputting the processed first water portion as said spray water to said cooling path. 3. The water transfer assembly in accordance with claim 2, wherein said first separating member is adapted to receive at least one of a portion of said second water portion and supplemental water for quenching and cleansing said cathode exhaust to produce said cleansed cathode exhaust. 4. The water transfer assembly in accordance with claim 2, wherein said first cooling assembly further comprises a heat exchanger for cooling said spray water before adding said spray water to said cathode exhaust. 5. The water transfer assembly in accordance with claim 2, wherein said first separating member is adapted to receive supplemental water for quenching and cleansing said cathode exhaust to produce said cleansed cathode exhaust, the water transfer assembly, further comprising a filter for removing chlorine and volatile contaminants from said supplemental water. 6. The water transfer assembly in accordance with claim 1, wherein each of said first separating member and said second separating member comprises a knock out pot. 7. The water transfer assembly in accordance with claim 1, wherein a first portion of said second water portion separated by said second separating member is provided to said first separating member for quenching said cathode exhaust and a second portion of said second water portion is provided to a humidifier for humidifying said fuel for said anode. 8. The water transfer assembly in accordance with claim 1, further comprising a filter for removing chlorine and volatile contaminants from said second water portion used for humidifying said fuel supplied to said anode. 9. The water transfer assembly in accordance with claim 1, wherein said non-volatile contaminants comprise electrolyte. 10. The water transfer assembly in accordance with claim 1, wherein the cooling member comprises an air fan and the cooling member cools the cleansed cathode exhaust to a temperature of about 110 to 120° F. during high-power operation of the molten carbonate fuel cell system and to a temperature of about 88° F. during zero or low power operation of the molten carbonate fuel cell system. 11. A molten carbonate fuel cell system comprising: at least one molten carbonate fuel cell including an anode for receiving fuel and outputting anode exhaust and a cathode for receiving oxidant gas and outputting cathode exhaust;a humidifier assembly for humidifying said fuel supplied to said anode; anda water transfer assembly comprising a first cooling assembly including a cooling path that receives said cathode exhaust and spray water and quench cools the cathode exhaust using the spray water, an injector for injecting the spray water into the cathode exhaust in the cooling path, and a first separating member for separating a first water portion and non-volatile contaminants from said cathode exhaust and outputting cleansed cathode exhaust and said first water portion, wherein said first cooling assembly processes the first water portion to remove the non-volatile contaminants from the first water portion and recycles the first water portion after processing for use as the spray water; and a second cooling assembly including a cooling member that receives said cleansed cathode exhaust and cools the cleansed cathode exhaust, and a second separating member that separates a second water portion from said cleansed cathode exhaust, said second water portion being suitable for humidifying said fuel supplied to said anode and said cooling member comprising one of an air fan and a heat exchanger recovering waste heat from the cleansed cathode exhaust,wherein the cleansed cathode exhaust has a temperature below 200° F. before being conveyed to the cooling member of the second cooling assembly. 12. The molten carbonate fuel cell system in accordance with claim 11, wherein said first cooling assembly further comprises a blowdown assembly for removing said non-volatile contaminants from said first water portion outputted by said first separating member and then outputting said processed first water portion as spray water to said cooling path. 13. The molten carbonate fuel cell system in accordance with claim 12, wherein said first separating member is adapted to receive at least one of a portion of said second water portion and supplemental water for quenching said cathode exhaust. 14. The molten carbonate fuel cell system in accordance with claim 12, wherein said first cooling assembly further comprises a heat exchanger for cooling said spray water before adding said spray water to said cathode exhaust. 15. The molten carbonate fuel cell system in accordance with claim 12, wherein said first separating member is adapted to receive supplemental water for quenching and said cathode exhaust, and, wherein said water transfer assembly further comprises a filter for removing chlorine and volatile contaminants from said supplemental water. 16. The molten carbonate fuel cell system in accordance with claim 11, wherein each of said first separating member and said second separating member comprises a knock out pot. 17. The molten carbonate fuel cell system in accordance with claim 11, wherein a first portion of said second water portion separated by said second separating member is provided to said first separating member for quenching said cathode exhaust and a second portion of said second water portion is provided to a humidifier for humidifying said fuel for said anode. 18. The molten carbonate fuel cell system in accordance with claim 11, further comprising a filter for removing chlorine and volatile contaminants from said second water portion used for humidifying said fuel supplied to said anode. 19. The molten carbonate fuel cell system in accordance with claim 11, wherein said non-volatile contaminants comprise electrolyte. 20. The molten carbonate fuel cell system in accordance with claim 11, wherein the cooling member comprises an air fan and the cooling member cools the cleansed cathode exhaust to a temperature of about 110 to 120° F. during high-power operation of the molten carbonate fuel cell system and to a temperature of about 88° F. during zero or low power operation of the molten carbonate fuel cell system. 21. A method of transferring water from cathode exhaust outputted by a cathode of a molten carbonate fuel cell comprising: receiving cathode exhaust from said cathode and spray water in a cooling path of a first cooling assembly by injecting the spray water using an injector into the cathode exhaust in the cooling path;quench cooling the cathode exhaust using the spray water in the cooling path;separating a first water portion and non-volatile contaminants from said cathode exhaust in a first separating member of said first cooling assembly and outputting cleansed cathode exhaust and said first water portion,processing the first water portion to remove the non-volatile contaminants from the first water portion and recycling the first water portion for use as the spray water;receiving said cleansed cathode exhaust in a cooling member of a second cooling assembly and cooling said cleansed cathode exhaust, said cooling member comprising one of an air fan and a heat exchanger recovering waste heat from the cleansed cathode exhaust; andseparating a second water portion from said cleansed cathode exhaust in a second separating member of said second cooling assembly, said second portion of water being suitable for humidifying fuel supplied to the anode of said fuel cell,wherein the cleansed cathode exhaust has a temperature below 200° F. before being received in said cooling member of the second cooling assembly, andwherein said method of transferring water from cathode exhaust is employed in the molten carbonate fuel cell system. 22. The method of transferring water from cathode exhaust in accordance with claim 21, wherein: said processing comprises removing said non-volatile contaminants from said first water portion output in the separating step and then outputting the processed first water portion as said spray water to said cathode exhaust. 23. The method of transferring water from cathode exhaust in accordance with claim 22, wherein: said separating said second water portion includes receiving at least one of a portion of said second water portion and supplemental water for quenching said cathode exhaust. 24. The method of transferring water from cathode exhaust in accordance with claim 23, further comprising removing chlorine and volatile contaminants from at least one of said supplemental water and said second water portion. 25. The method of transferring water from cathode exhaust in accordance with claim 21, further comprising cooling said spray water before adding said spray water to said cathode exhaust. 26. The method of transferring water from cathode exhaust in accordance with claim 21, wherein: said separating said first water portion and said separating said second water portion are each carried out with a knock out pot. 27. The method of transferring water from cathode exhaust in accordance with claim 21, wherein: a first portion of said second water portion is received in said separating said first water portion for quenching said cathode exhaust and a second portion of said second water portion is provided to a humidifier for humidifying said fuel for said anode. 28. The method of transferring water from cathode exhaust in accordance with claim 21, wherein: said non-volatile contaminants comprise electrolyte. 29. The method of transferring water from cathode exhaust in accordance with claim 21, wherein the cooling member comprises an air fan and the cooling member cools the cleansed cathode exhaust to a temperature of about 110 to 120° F. during high-power operation of the molten carbonate fuel cell system and to a temperature of about 88° F. during zero or low power operation of the molten carbonate fuel cell system.
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