Abstract: The present invention relates to a solar system for providing volumetric energy reproducing the effect of a combustion flame for a high-temperature industrial process, characterized in that it comprises: a solar receiver exposed to concentrated solar radiation, in which heat transfer fluid (liquid or gas) is brought to high temperature; at least one high-temperature chamber in which said high-temperature industrial process is performed; injection means of the heat transfer fluid in the form of a gas jet reproducing a combustion flame in the at least one high-temperature chamber. The present invention also relates to a process for providing volumetric energy reproducing the effect of a combustion flame for this purpose.

Abstract: The present invention relates to a solar system for providing volumetric energy reproducing the effect of a combustion flame for a high-temperature industrial process, characterised in that it comprises: a solar receiver exposed to concentrated solar radiation, in which heat transfer fluid (liquid or gas) is brought to high temperature; at least one high-temperature chamber in which said high-temperature industrial process is performed; injection means of the heat transfer fluid in the form of a gas jet reproducing a combustion flame in the at least one high-temperature chamber. The present invention also relates to a process for providing volumetric energy reproducing the effect of a combustion flame for this purpose.

Abstract: The invention relates to a method for preparing hydrogen that comprises a hydrolysis step (C) of solid SnO for producing hydrogen, in which the hydrogen thus produced is stored, recovered and/or upgraded, and in which the solid SnO used is obtained by the following steps: (A) thermal reduction of SnO2 into SnO in conditions yielding gaseous SnO; and (B) cooling the gaseous SnO thus produced to a temperature lower than or equal to % 50° C. The invention also relates to devices and equipments for implementing said method.