Method for transforming chemical structures in a fluid under pressure and in high temperature

A process for converting at least one chemical structure into at least one end product, wherein the at least one chemical structure is in a fluid containing a solvent and at least one salt, wherein said fluid is formed in the lower part of a first vertical reservoir reactor and flows upwards in said first vertical reactor successively crossing through:

• a first lower zone in which said fluid is maintained under a first temperature ensuring high solubility of said at least one salt and wherein said fluid undergoes an electrolysis to generate at least one reactive species in situ and initiate the conversion to the at least one end product, then
• a second upper zone wherein said fluid is maintained under a second temperature for precipitation of said at least one salt, and in which said conversion to the at least one end product is continued;
• after which said at least one salt precipitates into said lower zone wherein said at least one salt resolubilizes and saturates the fluid submitted to electrolysis;
• wherein said fluid which is essentially free of salt is evacuated to the upper part of said first vertical reactor and is directed into a second tubular reactor, wherein said fluid is maintained under a third temperature, which enables the conversion to said at least one end product;
• wherein the pressure is maintained constant throughout the entire process.