Volatile feedstock delivery system and fuel processing system incorporating the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C01B-003/24
C01B-003/00
B01J-008/00
출원번호
US-0636814
(2000-08-10)
발명자
/ 주소
Edlund,David J.
Herron,Thomas G.
출원인 / 주소
IdaTech, LLC
대리인 / 주소
Kolisch Hartwell, P.C.
인용정보
피인용 횟수 :
20인용 특허 :
72
초록▼
A fuel processing assembly adapted to produce hydrogen gas from a volatile feedstock. The fuel processing assembly includes a fuel processor, such as a steam reformer. The fuel processing assembly further includes a feed assembly adapted to deliver a volatile feedstock, such as propane, to the fuel
A fuel processing assembly adapted to produce hydrogen gas from a volatile feedstock. The fuel processing assembly includes a fuel processor, such as a steam reformer. The fuel processing assembly further includes a feed assembly adapted to deliver a volatile feedstock, such as propane, to the fuel processor. In some embodiments, the fuel processing system includes a fuel cell stack that includes at least one fuel cell adapted to produce electrical power from hydrogen gas produced by the fuel processor.
대표청구항▼
We claim: 1. A fuel processing system, comprising: a volatile carbon-containing feedstock feed assembly, and a fuel processor fluidly connected with the feed assembly, wherein the feed assembly comprises: a plurality of heated reservoirs to receive and store under pressure a volume of a volatile ca
We claim: 1. A fuel processing system, comprising: a volatile carbon-containing feedstock feed assembly, and a fuel processor fluidly connected with the feed assembly, wherein the feed assembly comprises: a plurality of heated reservoirs to receive and store under pressure a volume of a volatile carbon-containing feedstock from a supply; a heating assembly to selectively heat the plurality of heated reservoirs; and a delivery system in fluid communication with the plurality of heated reservoirs to selectively deliver a heated output stream containing the volatile carbon-containing feedstock from a selected one of the reservoirs; and a fuel processor in fluid communication with the delivery system to receive the heated output stream and to produce a product stream primarily containing hydrogen gas therefrom. 2. The system of claim 1, wherein the heating assembly heats the reservoirs by heat exchange with a heated fluid stream. 3. The system of claim 2, wherein the heating assembly selectively apportions the heated fluid stream between the plurality of heated reservoirs. 4. The system of claim 3, wherein the heating assembly selectively apportions the heated fluid stream between the plurality of heated reservoirs to control the pressure of the volatile carbon-containing feedstock in the reservoirs. 5. The system of claim 1, wherein the heating assembly includes a burner that produces an exhaust stream, and further wherein the heating assembly heats the reservoirs through heat exchange with the exhaust stream from the burner. 6. The system of claim 1, wherein at least one of the reservoirs includes a shell at least partially surrounding the reservoir and spaced-apart from that reservoir to define a cavity, and further wherein the heating assembly heats at least one of the reservoirs by delivering a heated fluid stream to the cavity. 7. The system of claim 1, further including a supply assembly that selectively delivers the volatile carbon-containing feedstock to the plurality of heated reservoirs. 8. The system of claim 7, wherein the supply assembly includes a vent assembly in communication with each of the plurality of heated reservoirs, and further wherein the vent assembly selectively vents the corresponding reservoir when the supply assembly delivers the volatile carbon-containing feedstock to the reservoir. 9. The system of claim 8, wherein the vent assembly is disposed to prevent venting of each of the reservoirs except when the supply assembly is delivering the volatile carbon-containing feedstock to the reservoirs. 10. The system of claim 8, wherein the supply assembly includes a supply reservoir that stores a volume of the volatile carbon-containing feedstock for selective delivery to the plurality of heated reservoirs. 11. The system of claim 1, further including a control system that controls the pressure of the volatile carbon-containing feedstock in the reservoirs. 12. The system of claim 11, wherein the control system controls the operation of the heating assembly. 13. The system of claim 11, wherein the control system controls the reservoir from which the delivery system draws the output stream. 14. The system of claim 1, further including a separation region that increases the purity of hydrogen in the product stream via a pressure-driven separation process. 15. The system of claim 14, wherein the fuel processor receives water and produces the product stream from the water and the output stream via a steam reforming reaction. 16. The system of claim 14, further including a fuel cell stack that receives the product stream and which includes at least one fuel cell that produces electrical power therefrom. 17. The system of claim 1, wherein the delivery system delivers the output stream at a selected pressure. 18. The system of claim 17, wherein the selected pressure is approximately 100-300 psig. 19. The system of claim 17, wherein the selected pressure includes a range of pressures. 20. The system of claim 1, wherein the heated output stream is a liquid heated output stream when drawn from the selected one of the reservoirs. 21. A fuel processing system, comprising: a fuel processor that produces a product gas stream primarily containing hydrogen gas from a feedstock; a feed assembly that delivers the feedstock at a selected pressure to the fuel processor, wherein the feed assembly includes a volatile feedstock feed system, comprising: a plurality of reservoirs that receive and store under pressure a volume of a volatile carbon-containing feedstock from a supply; a delivery system that draws a feed stream from a selected one of the reservoirs as a heated liquid stream, wherein the delivery system includes a delivery valve assembly that selectively delivers to the fuel processor the feed stream containing volatile carbon-containing feedstock from the selected one of the reservoirs at a pressure at least as great as the selected pressure; a supply system including a supply valve assembly that selectively fills the reservoirs with the volatile carbon-containing feedstock; and a heating assembly adapted that selectively heats the plurality of reservoirs to maintain the pressure of the volatile carbon-containing feedstock in the reservoirs at or above the selected pressure. 22. The system of claim 21, wherein the supply and delivery valve assemblies selectively deliver volatile carbon-containing feedstock from one of the reservoirs while supplying volatile carbon-containing feedstock to another one of the reservoirs. 23. The system of claim 21, further including a fuel cell stack that receives the product stream and which includes at least one fuel cell that produces electrical power therefrom. 24. The system of claim 21, further including a control system which controls the pressure of the volatile carbon-containing feedstock in the feed stream. 25. The system of claim 24, wherein the control system controls the operation of the heating assembly to control the temperature of the reservoirs. 26. The system of claim 24, wherein the control system controls the operation of the supply system to control the volume of the volatile carbon-containing feedstock in the reservoirs. 27. The system of claim 24, wherein the control system controls the operation of the delivery system to control the delivery of the feed stream. 28. The system of claim 24, wherein the control system includes a controller in communication with a sensor assembly. 29. The system of claim 28, wherein the sensor assembly includes temperature sensors that measure the temperature in the reservoirs. 30. The system of claim 28, wherein the sensor assembly includes level sensors that measure the volume of the volatile carbon-containing feedstock in the reservoirs. 31. The system of claim 28, wherein the sensor assembly includes pressure sensors that measure the pressure of the volatile carbon-containing feedstock in the reservoirs. 32. The system of claim 21, wherein the selected pressure is approximately 100-300 psig. 33. The system of claim 21, wherein the selected pressure includes a range of pressures.
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이 특허에 인용된 특허 (72)
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