Electrochemical Solutions for Environmental Remediation

Hydrogen, Energy and Electrochemical Cogeneration (eH)

Electrochemistry allows us to produce, recover and cogenerate hydrogen for the production of green energy.

Hydrogen production (e-H2H).

Process Description: 

  • The effluent enters the electrochemical hydrogen production system.
  • The hydrogen produced goes to the hydrogen engine to generate electricity.
  • The thermal energy generated (exhaust gases) in the engine is channelled to a Stirling engine to produce more electrical energy.

Energy recovery from waste heat and hydrogen production (e-HRH)

Process Description:

  • Heat is captured from an emitting source (chimney, gas outlet) and directed to a Stirling engine (HTR1).
  • Part of the electricity produced is for self-consumption or sale to the external grid.
  • Another part of the generated kilowatts is used for the electrochemical production of hydrogen (e-HH).
  • The hydrogen produced goes to a hydrogen engine or as fuel for self-consumption (reduction of gas consumption).
  • The hydrogen engine generates electricity for self-consumption or sale.
  • The heat from the exhaust gases of the hydrogen engine is channelled to a Stirling engine (HTR2) for the production of further electrical energy.

Stabilization of Biodigesters / Increase of methane and hydrogen cogeneration (e-BMH)

Process Description:

  • Initial waste is crushed (if necessary) and preheated.
  • Undergoes anaerobic digestion.
  • Produces biogas for cogeneration or direct injection into gas line.
  • Biogas production is increased and stabilized (T-1).
  • Excess ammonia nitrogen is continuously extracted (T-2).
  • The generated hydrogen, injected into the biogas line, is used to produce electricity (CO).
  • The surplus heat generated in the CO is used to preheat the initial waste (sludge, slurry, etc.) and to dry the solid fraction obtained in the process.
  • The water resulting from the T-2 treatment (high quality) can be reused in the installations themselves or discharged.

EONit®(CH4-H2) treatment: process diagram

Business cases

Automotive Industry


Chemical Industry




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