Reactor for hot thermal or thermo-chemical material processes with cleaning capability and method for cleaning a hot inner surface of a reactor used for hot thermal or thermo-chemical material processes

摘要

It is the aim of the present invention to provide a reactor and a method for thermal or thermo-chemical processing of different materials at high temperatures where the necessity for the cleaning of hot inner surfaces, such as windows, can be easily solved without suspending the process.;This aim is achieved according to the present invention by a reactor for hot thermal or thermo-chemical material processes converting a raw material at least partially into a desired product, comprising:a) a cavity having a hot inner surface; said cavity being disposed in a containment can,b) said cavity having at least one gas inlet and at least one gas outlet,c) a feeder mechanism for supplying the raw material subject to the thermal or thermo-chemical material process;d) said at least one gas inlet is formed for injecting a gas flow towards at least a part of the hot inner surface; ande) the gas or at least one component thereof is chosen to convert the undesired condensed product into a compound having a higher volatility at reaction temperature than the undesired product itself.;This allows to clean the hot inner surfaces without suspending the thermal and/or thermo-chemical material process since the suitable gas can be introduced in situ. By injecting the gas flow towards the inner surface to be cleaned the removal/reconversion of the product can be limited to the extent necessary. By controlling the flow rate of the gas flow any negative impact of an excess amount of gas injected can be avoided.