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Advanced water electrolysis launched

By Gerald Ondrey |

Last month, thyssenkrupp Industrial Solutions AG (Dortmund, Germany; www.thyssenkrupp-industrial-solutions.com) launched industrial-scale water electrolysis systems that make large-scale hydrogen production from renewable electricity economically attractive. The advanced water electrolyzer (diagram) features a well-proven cell design paired with an especially large (2.7 m2) active cell area. By further optimizing the proven “zero-gap” electrolysis technology (leaving virtually no gap between membrane and electrodes), very high efficiencies of more than 82% are achieved, says the company. “We transferred our knowledge and experience from chlor-alkali zero-gap to the alkaline technology,” explains Roland Käppner, head of Energy Storage and Hydrogen at thyssenkrupp Uhde Chlorine Engineers. “Throughout more than five years of research and development, our engineers optimized the cell architecture, current density, materials, coatings and other parameters. Since we were running full-size cells in an industrial test environment during this time, we were able to create very realistic conditions in order to achieve very precise results,” explains Käppner. To make deployment of large H2 projects as easy as possible, the thyssenkrupp…
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