Patent ID: 7976774

Claim:
A sparger for use in a process within a reactor vessel having an inlet nozzle, the sparger comprising: a body having a first end for fluid communication with the reactor vessel and a second end for coupling to a reagent supply, wherein the body includes a substrate tube, a thermally conductive interlayer metal on a surface of the substrate tube, and a corrosion resistant layer atop said thermally conductive interlayer metal said corrosion resistant layer having an ignition temperature; and a flange connected to and extending outwardly from said tube for sealing said sparger to said inlet nozzle, wherein said thermally conductive interlayer metal has thermal conductive properties sufficient to maintain said corrosion resistant layer below its ignition temperature; said substrate tube comprises a pipe having an interior surface and an exterior surface disposed within the reactor vessel or the inlet nozzle; said interlayer covers said interior surface and said exterior surface disposed within the reactor vessel or the inlet nozzle; said corrosion resistant layer covers said interlayer and is formed from concentric linings at said interior surface and said exterior surface joined with a seal weld at said first end; and said concentric linings defines an expansion gap between said concentric linings and said substrate tube at said first end.