8. Conclusions and outlook

This process was first envisaged around 1980. Between 2012 and 2023, a large number of studies were carried out on the choice of LOHC molecules, hydrogenation and dehydrogenation catalysts, and energy and economic aspects. However, published studies on kinetics and reactors are few and far between, and so the development of the latter has yet to be completed before process industrialization can be envisaged.

The technological obstacles encountered are :

• high volume expansion due to significant hydrogen release during dehydrogenation reactions, or significant hydrogen consumption during hydrogenation reactions;

• the high production or consumption of thermal energy during these reactions, which is directly linked to the transformation of hydrogen.

These...