LOHC-based hydrogen storage


Liquid organic hydrogen carriers (LOHC) are organic compounds that can absorb and release hydrogen through chemical bonding. LOHC can therefore serve as storage media for hydrogen.

Pumps of the high performance series are used to pump the LOHC dibenzyltoluene, also known as Marlotherm, perhydro-dibenzyltoluene and benzyltoluene. Micro annular gear pumps deliver, for example, dibenzyltoluene with volume flows between 1 ml/min and 240 ml/min into a reactor. Here, the medium is charged with hydrogen by means of hydrogenation.

Commercial LOHC plants for storing hydrogen bound to dibenzyltoluene already exist. Renewable energy is used to produce oxygen and hydrogen from water by means of electrolysis. One cubic meter of dibenzyltoluene can store up to 54 kg of hydrogen.

In bound form, hydrogen can be transported flexibly, easily and cost-effectively. Transport is important because the best locations for production are usually not where the energy is needed.

 

Criteria based on following for pump selection

  • extremely compact design
  • excellent material resistance
  • high power density

 

Applicable pump series available

 

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