Recording of Thursday, June 20, 2024 | The smarter E Europe 2024 | Exhibition Program | Language: English | Duration: 8:28 .

Importance of Water Treatment in Hydrogen Production Highlighted by EnviroFALK's Christopher Lenz

Christopher Lenz, the Business Development Manager for Hydrogen Projects at EnviroFALK, introduces his company as part of the EnviroWater Group, a network specializing in comprehensive water treatment solutions globally. The presentation emphasizes the crucial role of water treatment in hydrogen production, often overshadowed by a focus on electricity procurement and cost-effectiveness within the hydrogen economy. He explains that effective water treatment is essential for creating a sustainable energy economy. Lenz discusses hydrogen's natural occurrence predominantly bound in minerals and notably in water. Despite Earth's vast 1.4 billion cubic kilometers of water, only 2.5% is fresh, with just 0.3% accessible for human use—highlighting the necessity of efficient water management. He details that producing one kilogram of hydrogen theoretically requires nine kilograms of water but practically needs about ten to twelve kilograms due to inefficiencies. Moreover, electrolyzing power consumption necessitates significant volumes—200-300 liters per hour per megawatt. The core issue tackled is why supplying polluted water to electrolysis systems diminishes efficiency due to contaminants like salts causing surface buildup or CO2 reducing resin lifespan and accelerating corrosion through fluoride presence. To address these challenges, he outlines multiple purification steps transforming drinking-quality into high-purity standards: softening systems exchange hardness ions (calcium/magnesium) with sodium; reverse osmosis removes up to 98% salts/particles; membrane degassing eliminates gases like CO2; electrodeionization drops conductivity below 0.5 microsiemens/cm via further desalting; final ion exchange ensures this low conductivity level remains stable. By drastically lowering salt content from typical concentrations comparable—to dissolved teaspoons per bucket down—to near-reservoir purity levels (~one teaspoon/5 million liters), EnviroFALK’s processes safeguard efficient hydrogen production infrastructure.

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Speaker

Christopher Lenz
Business Development Manager
EnviroFALK PharmaWaterSystems GmbH
Germany

Talk of session: P3: Industrial/Product Live Pitches: Hydrogen Production Technology

Industrial/Product Live Pitches

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Enabling a Lower LCOH with Solar to Green Hydrogen Solution by LONGi

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The Circular Life of H2(O) - A Short Story of Leakages

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Smart Control in Green Hydrogen Ecosystems

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