At Munster University of Applied Sciences (Munster University of Applied Sciences), the HyTech project team is working with industrial partners to study another possibility for renewable hydrogen production.

The research project used the so-called dark fermentation technology. In order to make hydrogen production as stable and efficient as possible, different reactors and process parameters were tested in two test facilities.

Researchers have discovered a way to continuously produce hydrogen in dark fermentation. The process uses biomass, waste residue and wastewater as raw materials to produce hydrogen from biomass. These raw materials that have not yet been fully utilized will be converted into green hydrogen. The process is still under development.

Wastewater containing starch and sugar

In the dark fermentation process, the microorganisms are in the absence of oxygen and light, and the organic substances are converted into hydrogen and volatile organic acids in a two-stage test device. In addition, the research team checked the hydrogen production potential of food industry wastewater in advance. "Wastewater containing starch and sugar is particularly profitable," this is the preliminary conclusion made by Dr. Elmar Brugging. Most of this waste water has not been used so far.

Three-year project

The HyTech project lasts for three years, and the team will now advance the research on dark fermentation. In order to make hydrogen production as stable and efficient as possible, and to expand the range of available waste, different reactors and process parameters were tested in two test facilities. They also want to examine the possible uses of the hydrogen produced and test what additional process steps are needed to deliver this green hydrogen to the natural gas network, or use it in fuel cells or industrial processes.

Industrial partners

To this end, scientists are working with Berlin-based Blue Methano GmbH, which will support upcoming gas analysis tests and will provide gas measurement technology to determine the volume of hydrogen produced. The Cologne-based engineering company Emcel supports the team in economic matters and checks which developments are necessary to help its green hydrogen products survive in the market.

(Original from: University of Münster, China New Energy Network)

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