Claims
- 1. A reformer installation for generating a hydrogen-rich product gas from a hydrocarbon-containing fluid, the reformer installation comprising:
a housing having an interior; at least one reformer zone disposed in said interior of said housing and having an operating temperature; at least one feed line leading to said housing; and a thermally insulating heat shield causing a reduction of said operating temperature in said at least one reformer zone by 50% to take at least 8 hours.
- 2. The reformer installation according to claim 1, wherein said heat shield causes a reduction of said operating temperature in said at least one reformer zone by 20% to take at least 8 hours.
- 3. The reformer installation according to claim 1, wherein said heat shield causes it to take at least 24 hours for said operating temperature in said at least one reformer zone to drop by 50%.
- 4. The reformer installation according to claim 1, wherein said heat shield causes it to take at least 24 hours for said operating temperature in said at least one reformer zone to drop by 20%.
- 5. The reformer installation according to claim 1, wherein said heat shield has a thermal conductivity of less than 35 W/mK.
- 6. The reformer installation according to claim 1, wherein said heat shield has a thermal conductivity of less than 12 W/mK.
- 7. The reformer installation according to claim 1, wherein said heat shield has a thermal conductivity of less than 5 W/mK.
- 8. The reformer installation according to claim 1, wherein said heat shield has an associated heat accumulator.
- 9. The reformer installation according to claim 8, wherein said heat accumulator is constructed with a phase change material.
- 10. The reformer installation according to claim 8, wherein said heat accumulator is disposed within said heat shield.
- 11. The reformer installation according to claim 1, wherein said heat shield has a vacuum.
- 12. The reformer installation according to claim 1, wherein said at least one reformer zone is a plurality of individual reformer zones, and said heat shield has different thermal conductivities at said individual reformer zones.
- 13. The reformer installation according to claim 12, wherein said plurality of individual reformer zones includes a first reformer zone for partial oxidation and a second reformer zone for steam reforming of a hydrocarbon-containing fluid, and said heat shield has a lower thermal conductivity in said second reformer zone than in said first reformer zone.
- 14. The reformer installation according to claim 13, wherein said plurality of individual reformer zones includes a third reformer zone for purification of the product gas, and said heat shield has a higher thermal conductivity in said third reformer zone than in said second reformer zone.
- 15. The reformer installation according to claim 14, wherein said heat shield has a lower thermal conductivity in said third reformer zone than in said first reformer zone.
- 16. The reformer installation according to claim 14, wherein said third reformer zone provides catalytic purification of the product gas.
- 17. The reformer installation according to claim 1, wherein said heat shield has an associated electric heater.
- 18. The reformer installation according to claim 1, wherein said at least one feed line has a heat shield.
- 19. The reformer installation according to claim 18, wherein said heat shield of said at least one feed line has a heat accumulator filled with phase change material.
- 20. The reformer installation according to claim 1, wherein said at least one feed line has an electric heater.
- 21. The reformer installation according to claim 1, which further comprises at least one honeycomb body being thermally decoupled from said housing and disposed in said interior of said housing.
- 22. The reformer installation according to claim 21, wherein said at least one honeycomb body is at least partially surrounded by an air gap.
- 23. The reformer installation according to claim 22, which further comprises at least one convection barrier extending into said air gap.
- 24. The reformer installation according to claim 21, wherein said at least one honeycomb body has at least one suspension device at least partly formed of ceramic material.
Priority Claims (1)
Number |
Date |
Country |
Kind |
100 61 084.6 |
Dec 2000 |
DE |
|
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application is a continuation of copending International Application No. PCT/EP-01/14416, filed Dec. 7, 2001, which designated the United States and was not published in English.
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/EP01/14416 |
Dec 2001 |
US |
Child |
10457729 |
Jun 2003 |
US |