Bio-H2-Plus is a new developped technology from Switzerland that produces H2-injection gas with the help of electrolysis. Demineralised water with a special activator is split into hydrogen and oxygen.
The H2 and O2 molecules pass through a special device to produce a H2-O2 gas mixture.
This H2- injection gas is injected directly into the digester. It will help to open up the cell walls of the organic material and activate and increase the anaerobic bacteria population to produce more and better biogas.
The methane content increases with a few percent, the total quantity of biogas increases ( up to 20%), and in the biogas the amount of H2S and CO2 goes down.
Another advantage is that the Bio-H2-Plus is better for the engine. Combustion inside the cilinders is better, it runs smoother and prolongs the service intervalls of the sparkplugs. The emissions of the engine are lower, compared to non-treated biogas.
The technology has been thoroughly tested at biogas plants in Switzerland, Germany and Austria.
All the advantages of the Bio-H2-Plus technology listed:
More volume biogas or less substrates needed.
more energy in the biogas due to increased methane content.
Better for the environment; lower emissions.
Better for the CHP unit
makes biogas more competitive, hence more money
The investment in a Bio-H2-Plus system is normally paid back into 2 - 3 years.
The H2 - Injection gas is produced in a small apparatus, normally placed in a sea container next to the digester tank. Inside you will find the electrolysis unit where the activated demineralised water is split into H2 and O2.
There are different sizes depending on the size of the digester.
The H2- injection gas is put straight into the digester.
All you need is deminerelised activated water and electricity.
Example Profitability Calculation 500 kW Biogas plant.
Bio-H2-Plus BGI 4000. 99.000,00 €
Container 10.000,00 €
Installation costs 10.000,00 €
Energy cost 1.450,00 €
at 6 ct/kWh
Maintenance cost 3.500,00 €
Procesactivator 1.274,00 €
usage approx. 25 Liter/Week
Labour client 650,00 € Assumptions:
30 Minuten per week at 25€ /hour
Electricity sale: 18,0 ct/kWh
Depreciation 10.400,00 €
over period of 10 years Increase efficiency biogas production/kg Organic mater: 8 %
Interest 3.640,00 € Installed capacity: 500 kW
100% bank loan, Interest 3,5%, 5 years
Running hours/year: 8497 hrs/y
Inflation not taken into account
Year. Income. Cost. Financing cost. Fnancial returns. Cumulative return.
1. year 61.000,00 €. 18.774,00 €. 4.165,00 € 38.061,00 €
2. year 61.000,00 €. 18.774,00 € 4.165,00 € 38.061,00 €. 76.122 €.
3. year 61.000,00 €. 18.774,00 € 4.165,00 € 38.061,00 €. 114.183 €.
4. year 61.000,00 €. 18.774,00 € 4.165,00 € 38.061,00 €. 152.244 €.
5. year 61.000,00 €. 18.774,00 € 4.165,00 € 38.061,00 € 190.305 €.
Return on Investment: 3.1 years.
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