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Product Introduction
1MW Modular Direct Seawater Electrolysis Green Hydrogen System
1. Product Overview (Simplified)
This is a world-leading megawatt-level, skid-mounted industrial-grade system for direct seawater electrolysis. Unlike conventional electrolyzers that require costly ultra-pure fresh water, this unit produces green-hydrogen directly from raw seawater, with no pre-desalination process required.
Adopting integrated standard container-style modular design, the system is equipped with proprietary anti-corrosion catalytic electrodes and waste-heat-recovery components. It can operate stably under fluctuating offshore wind or solar power within a load range of 18%-150% of rated capacity, delivering high-purity hydrogen up to 99.999%.
Engineered to withstand harsh marine salt-fog environments and fitted with remote intelligent control, this equipment serves as a core green-hydrogen solution for offshore wind platforms, marine ranches, offshore rigs and coastal island resorts.
2. Core Innovative Technologies & Competitive Advantages
3.1 Proprietary Anti-Corrosion Electrode Technology
- High-selectivity catalytic material realizes 100% inhibition of chlorine evolution side reactions, completely solving seawater chloride corrosion pain points; stable operation for 1000 h under saturated salt without corrosion.
- Nano-structured super-wetting electrode array boosts current response speed by 60% and cuts energy consumption by 10%, effectively inhibiting calcium & magnesium scaling.
- Composite conductive protective layer improves electrode activity and stability by an order of magnitude vs ordinary seawater electrolysis electrodes.
3.2 Wide Fluctuation Power Adaptability
Unique electrolytic process supports frequent start-stop and unstable input power from offshore wind & floating PV, avoiding power curtailment waste and maximizing green power utilization.
3.3 Integrated Waste Heat Recovery System
Recycle electrolysis waste heat to preheat raw seawater, reduce heating energy loss and realize closed water circulation, lowering overall OPEX.
3.4 Full Modular Containerized Design
Independent standard containers for each functional unit, factory pre-assembled and tested; short on-site installation cycle, no complex civil construction required for offshore platforms / floating islands.
3.5 Outstanding Economic Performance
- Eliminate expensive seawater desalination supporting equipment, raw water cost only ~6 USD/ton vs 19–38 USD/ton for ultra-pure fresh water.
- Unit equipment CAPEX only 1600–2000 USD/kW after mass production, far lower than PEM / AEM seawater electrolysis (6000–7000 USD/kW).
- Long electrode service life reduces replacement & maintenance frequency and long-term labor cost.
4. System Process Flow
- Raw seawater is pre-filtered and heated via waste heat recovery module to reduce calcium & magnesium scaling ions, then pumped into the MW-grade seawater electrolyzer.
- Electrolysis reaction generates two-phase mixtures of hydrogen-electrolyte and oxygen-electrolyte inside the cell stack.
- Gas-liquid mixtures enter multi-stage separation system: oxygen is washed and vented safely; separated electrolyte circulates back to waste heat recovery tank.
- Crude hydrogen flows into purification unit to remove residual oxygen and water vapor, finally outputting 99.999% high-purity green hydrogen for storage, transportation or on-site utilization.
5. Main Application Scenarios
- Offshore Wind & Floating PV Farms Couple with fluctuating offshore renewable energy to consume surplus power locally, produce green hydrogen on-site and eliminate wind curtailment losses.
- Deep-Sea Marine Ranch Complexes Supply clean hydrogen fuel for aquaculture vessels, refrigeration equipment, hydrogen-powered sightseeing boats and floating restaurant platforms.
- Offshore Oil & Gas Production Platforms Replace fossil fuel power generation; provide hydrogen for fuel cells, offshore logistics drones and natural gas hydrogen blending.
- Coastal Resort Islands & Floating Tourism Platforms Stable green hydrogen supply for power backup, hydrogen fuel cell passenger ferries and onshore hydrogen refueling stations.
- Coastal Industrial Parks with High-Salinity Wastewater Direct electrolysis of industrial brine wastewater to produce green hydrogen, realizing resource recycling and zero freshwater consumption.
- Offshore Green Hydrogen Storage & Refueling Hubs Match with marine hydrogen bunkering vessels to form integrated offshore "hydrogen production-storage-transportation-refueling" full industrial chain.