HANNOVER MESSE 2020, 20 - 24 April
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Regenerative Gas Production

New Fermentation Process Optimizes Biogas Injection.

Logo Karlsruher Institut für Technologie


Karlsruher Institut für Technologie

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Exhibitor details
Logo Regenerative Gas Production

Product description

In biogas plants, biological wastes and other decomposable biomass feedstocks are decomposed by bacteria in the absence of oxygen. The target product is biogas consisting of about equal shares of methane and carbon dioxide. Apart from the direct local conversion of the biogas produced into electricity and heat, the gas is increasingly fed into the natural gas network. Production and injection of biogas into the public gas supply system represents a viable alternative for using wet biomass for energy production. For this purpose, the gas has to be processed and compressed to the pressure of the gas supply network. The fermentation methods presently used for the production of biogas are hardly optimized for biogas injection into the natural gas network. Considerable progress might be achieved by biochemical gas production at a pressure exceeding the atmospheric pressure used so far. Scientists test laboratory at the Engler-Bunte Institute developed an innovative fermentation concept to optimize the production and injection of processed biogas into the gas network. The new process is developed under a joint research project and aimed at enhancing the efficiency of biogas production and processing. The new process consists of two stages. The biomass is converted micobiologically into gas in two reactors, with the second stage being operated at increased pressure. As a result of this two-stage pressurized fermentation, compression of the biogas is no longer required. Consequently, energy consumption is reduced by about 25 to 30% and no operation costs arise for processing to a biogas suited for injection into the gas network. Another advantage consists in the fact that gas cleaning is facilitated, as the gas is produced under pressure and, hence, of better quality.

You can get an overview of this technology at KIT stand. Detailed information can be exchanged individually in contact with the responsible scientific employees of KIT after the industry fair

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