These thermochemical processes both yield a combustible gas and a solid char.

Enerkem's clean technology platform is a 4-step thermochemical process that consists of:

Thus, Gibbs free energy is most useful for thermochemical processes at constant temperature and pressure: both isothermal and isobaric.

The higher temperature enables the production of hydrogen by thermochemical processes.

The iron oxide cycle is a series of thermochemical processes used to produce hydrogen.

For all the thermochemical processes, the summary reaction is that of the decomposition of water:

More developed than competitive thermochemical processes (but still requiring significant development to be feasible on large scale).

Aside from electrolysis driven by photovoltaic or photochemical cells, several thermochemical processes have also been explored.

This improves thermal efficiency and could potentially allow hydrogen production through thermochemical processes.

Whatever gas remains is then made into pyrolysis oil by thermochemical processes.