Reactor vessel and liner

1. A reactor vessel liner system comprising:

a liner having a plurality of first conduits and a plurality of second conduits operable to convey a coolant, wherein the plurality of second conduits is located at least partially within corresponding ones of the plurality of first conduits.

2. The reactor vessel liner system as recited in claim 1 , wherein the plurality of first conduits comprises outer tubes and the plurality of second conduits comprises inner tubes that extend at least partially within corresponding ones of the outer tubes.

3. The reactor vessel liner system as recited in claim 2 , wherein the outer tubes each include an annular passage between the outer tube and the corresponding inner tube, and each of the inner tubes includes an internal passage.

4. The reactor vessel liner system as recited in claim 1 , wherein the plurality of first conduits, the plurality of second conduits, or both comprise a metal.

5. The reactor vessel liner system as recited in claim 4 , wherein the metal comprises a cobalt alloy.

6. The reactor vessel liner system as recited in claim 1 , wherein the plurality of first conduits, the plurality of second conduits, or both comprise a ceramic matrix composite.

7. The reactor vessel liner system as recited in claim 6 , wherein the ceramic matrix composite comprises silicon carbide.

8. The reactor vessel liner system as recited in claim 1 , wherein the plurality of first conduits comprise a non-slag coating.

9. The reactor vessel liner system as recited in claim 8 , wherein the coating comprises at least one of a metal alloy or a ceramic material.

10. The reactor vessel liner system as recited in claim 9 , wherein the coating is the ceramic material, and the ceramic material comprises a ramming compound.

11. The reactor vessel liner system as recited in claim 1 , wherein at least a portion of the plurality of first conduits comprise projections extending therefrom.

12. The reactor vessel liner system as recited in claim 1 , further comprising a ceramic sheath that extends at least partially around the plurality of first conduits.

13. The reactor vessel liner system as recited in claim 1 , wherein the plurality of first conduits comprises first hollow tubes and the plurality of second conduits comprises second hollow tubes that are within corresponding ones of the first hollow tubes.

14. The reactor vessel liner system as recited in claim 1 , wherein the plurality of first conduits comprises first hollow tubes and the plurality of second conduits comprises second hollow tubes, and each second hollow tube is at least partially within a corresponding one of the first hollow tubes and is coaxial with that corresponding first hollow tube.

15. The reactor vessel liner system as recited in claim 1 , wherein the plurality of first conduits comprises outer hollow tubes and the plurality of second conduits comprises inner hollow tubes.

16. The reactor vessel liner system as recited in claim 1 , wherein the plurality of first conduits comprises first hollow tubes and the plurality of second conduits comprises second hollow tubes, and each second hollow tube is within a corresponding one of the first hollow tubes such that there are annular open passages between the second hollow tubes and the corresponding first hollow tubes.

17. A reactor vessel liner system comprising:

a liner having a plurality of first conduits and a plurality of second conduits for conveying a coolant, wherein the plurality of second conduits is located at least partially within corresponding ones of the plurality of first conduits, the plurality of first conduits comprises outer tubes and the plurality of second conduits comprises inner tubes that extend at least partially within corresponding ones of the outer tubes, the outer tubes each include an annular passage between the outer tube and the corresponding inner tube, and each of the inner tubes includes an internal passage, and wherein the annular passage of each outer tube is fluidly connected with the internal passage of the corresponding inner tube.

18. A reactor vessel liner system comprising:

a liner having a plurality of first conduits and a plurality of second conduits for conveying a coolant, wherein the plurality of second conduits is located at least partially within corresponding ones of the plurality of first conduits, wherein the plurality of first conduits comprises outer tubes and the plurality of second conduits comprises inner tubes that extend at least partially within corresponding ones of the outer tubes, and wherein each of the outer tubes includes an end cap.

19. The reactor vessel liner system as recited in claim 2 , wherein the outer tubes are arranged in a ring formation such that lengthwise directions of the outer tubes are approximately parallel.

20. The reactor vessel liner system as recited in claim 19 , further including a support member extending circumferentially around the ring formation and bonded to at least a portion of the outer tubes.

21. A reactor vessel liner system comprising:

a liner having a plurality of first conduits and a plurality of second conduits for conveying a coolant, wherein the plurality of second conduits is located at least partially within corresponding ones of the plurality of first conduits, wherein the plurality of first conduits comprises outer tubes and the plurality of second conduits comprises inner tubes that extend at least partially within corresponding ones of the outer tubes; and

centering devices between the plurality of first conduits and the plurality of second conduits for maintaining a desired alignment of the plurality of second conduits within the plurality of first conduits.

22. A reactor vessel system comprising:

a reactor vessel including a vessel wall; and

a liner that lines the vessel wall, the liner having a plurality of first conduits and a plurality of second conduits operable to convey a coolant, wherein the plurality of first conduits is located at least partially within corresponding ones of the plurality of first conduits.

23. A reactor vessel system comprising:

a reactor vessel including a vessel wall;

a liner that lines the vessel wall, the liner having a plurality of first conduits and a plurality of second conduits for conveying a coolant, wherein the plurality of first conduits is located at least partially within corresponding ones of the plurality of first conduits; and

an inlet manifold and an outlet manifold fluidly connected with the plurality of first conduits and the plurality of second conduits.

24. The reactor vessel system as recited in claim 23 , wherein the inlet manifold is connected in parallel with the plurality of first conduits and the outlet manifold is connected in parallel with the plurality of second conduits.

25. The reactor vessel system as recited in claim 23 , wherein the inlet manifold and the outlet manifold extend entirely about a perimeter of the reactor vessel.

26. A reactor vessel system comprising:

a reactor vessel including a vessel wall; and

a liner that lines the vessel wall, the liner having a plurality of first conduits and a plurality of second conduits for conveying a coolant, wherein the plurality of first conduits is located at least partially within corresponding ones of the plurality of first conduits, and wherein each of the plurality of first conduits and the plurality of second conduits includes a first end that is fixed with the reactor vessel and a free, second end.

27. A method for cooling a liner of a reactor vessel system, the method comprising:

transporting a coolant through a plurality of first conduits of the liner to cool the liner; and

transporting the coolant through a plurality of second conduits of the liner, wherein the plurality of second conduits is located at least partially within corresponding ones of the plurality of first conduits.

28. The method as recited in claim 27 , including supplying the coolant in parallel to the plurality of first conduits.