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Green hydrogen is a key technology for energy transition and decarbonization. Its production requires high-quality water and green electricity, both of which are readily available in remote areas such as offshore. With our BMG Pure Water Container, Bosch Manufacturing Solutions | BMG has developed a technology that converts seawater into ultra-pure water without the need for chemical additives. This energy-efficient, environmentally friendly, and emission-free solution is essential for optimizing electrolyzer performance and supporting sustainable green hydrogen production. Our advanced water treatment and water purification technology ensures a reliable, sustainable source of ultra-pure water for green hydrogen production.
While traditional technologies exist for electrolysis and water treatment, renewable energy applications pose unique challenges. Reverse osmosis, commonly used in industrialized regions, struggles with reliability in remote areas where energy supply fluctuates. Reverse osmosis requires high pressure to remove impurities, and chemical additives to extend membrane life, which end up in wastewater, so-called "brine". This results in emissions and high maintenance, complicating electrolysis projects. In contrast, the BMG Pure Water System leverages an innovative liquid-to-gas phase transition, offering a chemical-free, low-maintenance, and sustainable approach to water treatment, ideal for efficient green hydrogen production in remote areas.
The Anti-Scaling System is designed for seawater sources to prevent scaling caused by bicarbonates during the water purification process. Its flow-through design enables continuous operation without the need for an acid storage tank or frequent refills, saving space for other technologies.
Mechanical Vapor Compression Distillation (MVCD) is an innovative, chemical-free process that provides complete purification of saline water by utilizing the principle of vapor compression. By recovering the enthalpy of evaporation within the process, MVCD provides a highly energy-efficient solution for sustainable water treatment, making it ideal for green hydrogen production in remote areas.
Electrodeionization, a chemical-free electrochemical purification process, effectively removes the remaining traces of ionic impurities. This ensures water quality that meets the stringent purity standards for green hydrogen electrolysis and supports efficient, sustainable water treatment for hydrogen production
Brine disposal from electrolysis is subject to strict regulations to protect surrounding water resources. To comply with these requirements, the brine must not contain any chemicals introduced during the process. Our system ensures that the brine consists solely of the natural components of the original water source, free from any added chemical contaminants.
Saving water and conserving drinking water resources
Minimization of brine disposal & avoidance of the addition of chemicals
Consistent output quality & low maintenance
Compatible with renewable energy sources
Low costs due to stable processes and robust technology
Stable process that follows energy fluctuations and frequent start-stops within seconds
In a significant step towards sustainable energy, an agreement has been signed for the development of a 10MW offshore electrolysis demonstrator at the Alpha Ventus wind farm in the German North Sea. The project, part of the NORTHSEA HYDROGEN initiative by NorthH2, Deutsche Offshore-Testfeld- und Infrastruktur-GmbH & Co. KG (DOTI) and the Offshore Wind Energy Foundation, aims to demonstrate the feasibility and efficiency of green hydrogen production directly at sea. The goal of this project is to produce up to 70,000 tons of green hydrogen annually at an industrial scale, focusing on redundancy, security, and local production.
Wolfgang Schleifenbaum | BMG Pure Water System