High temperature heat storage for LOHC-applications

Optimum heat integration in LOHC-systems aims for maximized efficiencies and dynamics.

A high-temperature heat storage was developed with the aim of providing process heat for hydrogen release reactions in LOHC systems. The heat storage reaction is the oxidation of iron with water. This reaction further produces hydrogen, which can be used in fuel cells, for example. Through this way of heat storage the resulting heat can be reused in the LOHC process.
The increase in efficiency of the hydrogen storage system by internal heat integration is significant. The heat storage unit can provide temperatures of up to 450 °C.