Hydrogen-producing fuel processing assemblies, heating assemblies, and methods of operating the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C01B-003/36
C01B-003/00
C10K-003/06
C10K-003/00
B01J-007/00
H01M-008/06
H01M-008/04
H01M-008/18
H01M-008/12
출원번호
UP-0226810
(2005-09-13)
등록번호
US-7632322
(2009-12-24)
발명자
/ 주소
Edlund, David J.
출원인 / 주소
Idatech, LLC
대리인 / 주소
Dascenzo Intellectual Property Law, P.C.
인용정보
피인용 횟수 :
10인용 특허 :
121
초록▼
Combustion-based heating assemblies and hydrogen-producing fuel processing assemblies that include at least a reforming region adapted to be heated by the heating assemblies. The heating assembly may include at least one fuel chamber and at least one heating and ignition source. The at least one fue
Combustion-based heating assemblies and hydrogen-producing fuel processing assemblies that include at least a reforming region adapted to be heated by the heating assemblies. The heating assembly may include at least one fuel chamber and at least one heating and ignition source. The at least one fuel chamber may be adapted to receive at least one fuel stream at a first temperature. The fuel stream may include a liquid, combustible, carbon-containing fuel having an ignition temperature greater than the first temperature at which the fuel stream is delivered to the fuel chamber. The at least one heating and ignition source may be adapted to heat at least a portion of the fuel chamber to raise the temperature of at least a portion of the carbon-containing fuel to a second temperature at least as great as the ignition temperature and to ignite the carbon-containing fuel. Methods of use are also disclosed.
대표청구항▼
The invention claimed is: 1. A fuel processing assembly, comprising: a reforming region adapted to receive at least one feed stream comprising a carbon-containing feedstock and to produce therefrom a mixed gas stream comprising hydrogen gas as a majority component; and a heating assembly in thermal
The invention claimed is: 1. A fuel processing assembly, comprising: a reforming region adapted to receive at least one feed stream comprising a carbon-containing feedstock and to produce therefrom a mixed gas stream comprising hydrogen gas as a majority component; and a heating assembly in thermal communication with the reforming region, wherein the heating assembly comprises: at least one fuel chamber that includes an at least substantially open top and is adapted to receive at least one liquid fuel stream at a first temperature, the at least one liquid fuel stream comprising a liquid, combustible, carbon-containing fuel having an ignition temperature greater than said first temperature, wherein the at least one fuel chamber is further adapted to retain the liquid, combustible, carbon-containing fuel therein during combustion thereof; and at least one heating and ignition source positioned to ignite fuel vapor formed from and above the liquid, combustible, carbon-containing fuel that is retained in the at least one fuel chamber; wherein the at least one heating and ignition source is adapted to heat at least a portion of the fuel chamber to raise the temperature of at least a portion of the fuel vapor formed from and above the liquid, combustible, carbon-containing fuel that is retained in the at least one fuel chamber to a second temperature at least as great as the ignition temperature and to ignite the fuel vapor formed from and above the liquid, combustible, carbon-containing fuel that is retained in the at least one fuel chamber. 2. The fuel processing assembly of claim 1, wherein the feed stream and the at least one liquid fuel stream each comprise at least one common carbon-containing component. 3. The fuel processing assembly of claim 1, wherein the feed stream and the at least one liquid fuel stream each comprise at least 25 vol % water and at least one water-miscible carbon-containing component. 4. The fuel processing assembly of claim 3, wherein the at least one water-miscible carbon-containing component includes methanol. 5. The fuel processing assembly of claim 3, wherein the at least one water-miscible carbon-containing component includes ethanol. 6. The fuel processing assembly of claim 1, wherein the heating and ignition source comprises an electrical resistance heating element adapted to be heated to a heating element ignition temperature at which the heating element is adapted to ignite the fuel vapor formed from and above the liquid, combustible, carbon-containing fuel that is retained in the at least one fuel chamber. 7. The fuel processing assembly of claim 6, wherein the electrical resistance heating element includes a localized heat source. 8. The fuel processing assembly of claim 1, wherein the heating assembly further comprises a transport medium disposed in the fuel chamber. 9. The fuel processing assembly of claim 8, wherein the transport medium is adapted to at least temporarily absorb the liquid, combustible, carbon-containing fuel that is retained in the at least one fuel chamber. 10. The fuel processing assembly of claim 8, wherein the transport medium is adapted to define a flame-holding surface for the liquid, combustible, carbon-containing fuel that is retained in the at least one fuel chamber. 11. The fuel processing assembly of claim 1, wherein the at least one fuel chamber includes a liquid fuel region and a fuel vapor region, and wherein at least a portion of the heating and ignition source is disposed in the fuel vapor region. 12. The fuel processing assembly of claim 11, wherein the heating and ignition source is disposed above the liquid fuel region and between the liquid fuel region and the reforming region. 13. The fuel processing assembly of claim 1, wherein the at least one fuel chamber is adapted to receive a predetermined volume of the liquid, combustible, carbon-containing fuel. 14. The fuel processing assembly of claim 13, wherein the predetermined volume of the liquid, combustible, carbon-containing fuel comprises at least enough fuel to heat the reforming region to a predetermined temperature but not enough fuel to maintain the reforming region at the predetermined temperature while the reforming region is producing the mixed gas stream. 15. A fuel processing assembly, comprising: a reforming region adapted to receive at least one feed stream comprising a carbon-containing feedstock and to produce an output stream comprising hydrogen gas as a majority component; and a heating assembly adapted to heat the reforming region; wherein the heating assembly comprises: at least one fuel chamber that includes an at least substantially open top and is adapted to receive at least one liquid fuel stream comprising a liquid, combustible, carbon-containing fuel having an ignition partial pressure that is greater than an initial partial pressure of fuel vapor formed from and above the liquid, combustible, carbon-containing fuel that is initially received in the at least one fuel chamber, wherein the at least one fuel chamber is further adapted to retain the liquid, combustible, carbon-containing fuel therein during combustion thereof; and at least one heating and ignition source positioned to ignite the fuel vapor formed from and above the liquid, combustible, carbon-containing fuel that is retained in the at least one fuel chamber; wherein the at least one heating and ignition source is adapted to heat at least a portion of the at least one fuel chamber to raise the partial pressure of the fuel vapor formed from and above the liquid, combustible, carbon-containing fuel that is retained in the at least one fuel chamber to a second partial pressure at least as great as the ignition partial pressure and to ignite the fuel vapor formed from and above the liquid, combustible, carbon-containing fuel that is retained in the at least one fuel chamber. 16. The fuel processing assembly of claim 15, wherein the feed stream and the at least one liquid fuel stream each comprise at least one common carbon-containing component. 17. The fuel processing assembly of claim 16, wherein the feed stream and the at least one liquid fuel stream each comprise at least 25 vol % water and at least one water-miscible carbon-containing component. 18. The fuel processing assembly of claim 17, wherein the at least one water-miscible carbon-containing component includes methanol. 19. The fuel processing assembly of claim 17, wherein the at least one water-miscible carbon-containing component includes ethanol. 20. The fuel processing assembly of claim 18, wherein the at least one heating and ignition source comprises an electrical resistance heating element adapted to be heated to a heating element ignition temperature at which the heating element is adapted to ignite the fuel vapor formed above and from the liquid, combustible, carbon-containing fuel that is retained in the at least one fuel chamber. 21. The fuel processing assembly of claim 15, wherein the heating assembly further comprises a transport medium disposed in the at least one fuel chamber. 22. The fuel processing assembly of claim 15, wherein the at least one fuel chamber includes a liquid fuel region and a fuel vapor region, and wherein at least a portion of the heating and ignition source is disposed in the fuel vapor region. 23. The fuel processing assembly of claim 22, wherein the heating and ignition source is disposed above the liquid fuel region and between the liquid fuel region and the reforming region. 24. The fuel processing assembly of claim 15, wherein the at least one fuel chamber is adapted to receive a predetermined volume of liquid, combustible, carbon-containing fuel. 25. The fuel processing assembly of claim 24, wherein the predetermined volume of liquid, combustible, carbon-containing fuel comprises at least enough fuel to heat the reforming region to a predetermined temperature, but not enough fuel to maintain the reforming region at the predetermined temperature while the reforming region is producing the output stream. 26. The fuel processing assembly of claim 1, wherein the at least one fuel chamber includes an ignition region separated from a combustion region, wherein the at least one heating and ignition source is disposed in the ignition region and is adapted to directly heat the ignition region to raise the temperature of the at least a portion of the fuel vapor formed from and above the liquid, combustible, carbon-containing fuel that is retained in the at least one fuel chamber to the second temperature and to ignite the fuel vapor in the ignition region so combustion thereof propagates to and across the combustion region. 27. The fuel processing assembly of claim 26, wherein the at least one fuel chamber includes an at least partially enclosed ignition chamber defining the ignition region. 28. The fuel processing assembly of claim 15, wherein the at least one fuel chamber includes an ignition region separated from a combustion region, wherein the at least one heating and ignition source is disposed in the ignition region and is adapted to directly heat the ignition region to raise the partial pressure of the fuel vapor formed from and above the liquid, combustible, carbon-containing fuel that is retained in the at least one fuel chamber in the ignition region to the second partial pressure and to ignite the fuel vapor in the ignition region so combustion thereof propagates to and across the combustion region. 29. The fuel processing assembly of claim 28, wherein the at least one fuel chamber includes an at least partially enclosed ignition chamber defining the ignition region. 30. A fuel processing assembly, comprising: a reforming region adapted to receive at least one feed stream comprising a carbon-containing feedstock and to produce therefrom a mixed gas stream comprising hydrogen gas as a majority component; and a heating assembly in thermal communication with the reforming region, wherein the heating assembly includes: means for receiving and retaining liquid fuel, wherein the liquid fuel is received at a first temperature and has an ignition temperature greater than the first temperature, wherein the means for receiving and retaining includes a chamber with an at least substantially open top; means for heating at least a portion of the means for receiving and retaining to raise the temperature of at least a portion of fuel vapor formed from and above the liquid fuel that is retained in the means for receiving and retaining to at least the ignition temperature; and means for igniting the at least a portion of the fuel vapor formed from and above the liquid fuel that is retained in the means for receiving and retaining. 31. The fuel processing assembly of claim 30, wherein the means for receiving and retaining is means for receiving and retaining a predetermined volume of liquid fuel that includes at least enough fuel to heat the reforming region to at least a reforming temperature but not enough fuel to maintain the reforming region at or above the reforming temperature while the reforming region is producing the mixed gas stream.
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이 특허에 인용된 특허 (121)
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