Continuously operated ideal tubular reactor system, e.g. for oxidizing toxic material, has sandwich construction for operation in near-critical, critical and supercritical regions of water

摘要

A novel continuously operated ideal tubular reactor system (a) operates at the temperatures and pressures of water (as solvent) in the near-critical, critical and supercritical regions and/or (b) is assembled as a sandwich construction with an inner plating material (such as the duplex refined steel SAF 2507) and an outer structure of fine grained carbon steel (such as WB36, i.e. 15NiCuMoNb5). Independent claims are included for: (1) a continuously operated ideal tubular reactor system, heatable by a nitrogen-containing salt mixture (achieving a maxiumum temperature of 924 K) and additional aggregates to prevent the molten salt temperature falling below the eutectic temperature (which would cause catastrophic solidification of the salt, rendering the system inoperable); (2) the derivation of a suitable mathematical formula for providing a reliable correlation between time via density versus volume via mass (allowing an engineer to achieve the necessary overall conditions), the mathematical derivation being verified by desirable empirical results; and (3) a design concept for overcoming the different expansion of the internal part of the tube relative to the outer (enclosing) tube, where (in contrast to the present construction) the difference between the internal part of the tube relative to the outer tube in an oil-heated high pressure steam generator is compensated using a high temperature-resistant linear bellows compensator.