Supercritical water oxidation reactor with wall conduits for boundary flow control

摘要

Reactor tube (11) for supercritical water oxidation has its wall formed of a laminate of platelets each of which is less than 0.10 inch thick and is etched such that the etched regions of all the platelets overlap to form a number of flow passages communicating through the tube wall from the exterior to the interior. Each flow passage comprises a flow metering channel, of uniform section selected to offer a preselected resistance to flow, a distribution section to receive water flowing from the metering channel which directs the flow in directions parallel the tube wall and has a cross section expanding in the direction of flow, and terminates in an exit port (16) which is elongate in the circumferential direction of the tube wall and shaped to direct flow in a sheet (13) along the interior of the tube wall, the distribution section containing flow directors to distribute water uniformly over the width of the exit port. The exit ports of all the flow passages are arranged to supply water substantially uniformly along the interior wall of the tube in a continuous film.