The present work deals with both experimental and numerical analyses of thermochemical cycles. This technological pathway typically aims at producing hydrogen or synthesis gas starting from water or water/carbon dioxide mixture, respectively. In case both of these latter feeds are supplied to the process, the resulting synthesis gas mixture, made up of hydrogen and carbon monoxide, can be further treated downstream to obtain higher complexity chemicals, e.g. through Fischer-Tropsch processing. Nowadays, the importance of developing processes capable to treat and valorise carbon dioxide emissions lies in the possibility to face as effectively as possible climate changes and global warming, in the framework of a decarbonization global policy.