Hydrogen Production

In the green hydrogen ecosystem, electrolysers stand at the forefront, employing electrolysis to divide water into hydrogen and oxygen atoms, requiring electrical energy. Our plastic piping systems are expertly designed to support the smooth conveyance and efficient cooling of fluids and gases, critical components of this operation. We are committed to enhancing the longevity and resilience of electrolysers with our innovative non-corrosive solutions, effectively minimizing downtime.

Water is at the heart of the hydrogen economy, powering the crucial process of hydrogen production through electrolysis.

Hydrogen Production: 
When water (H₂O) is split by an electric current, it simply becomes hydrogen (H₂) and oxygen (O₂). The oxygen is a so called by-product that can offeradditional industrial uses and opportunities for circular economy practices. 

Water consumption:  
Electrolysis to produce green hydrogen is water-intensive, requiring about nine liters per kilogram of hydrogen produced. Typically, electrolysers consume 45–55 kWh per kg of hydrogen, equating to 0.16–0.2 l of ultrapure water per kWh resulting into 163–200 l/h of ultrapure water per MW of electrolyser capacity.1 

1.Henrik Tækker MadsenWater (Oct 2022), Water treatment for hydrogen by EUROWATER, a Grundfos company.

Source link: Water treatment for green hydrogen: what you need to know (hydrogentechworld.com)

In the realm of ultrapure water generation, the selection of materials hinges on the desired water quality, typically measured in microSiemens (µS/cm). SYGEF PVDF HP emerges as the preferred choice for high-purity applications owing to its exceptional mechanical and chemical resistance. This system is meticulously produced under ISO Class 5 (100) cleanroom conditions, ensuring absolute purity and compliance with stringent industrial standards.

Aside from SYGEF for other water qualities, PROGEF PP-H stands out as the optimal choice. This polypropylene (PP) piping system offers good chemical resistance and durability, rendering it suitable for a wide array of applications. 

Specifically, our PROGEF (Polypropylene) system is exceptionally effective. It ensures high purity by minimizing contamination and is resistant to impact, abrasion, and a wide range of chemicals. This positively impacts the overall efficiency and longevity of the ultrapure water system and thus has an positive effect on the lifetime of the electrolyser stack.

To determine the best material for your specific application needs, we recommend consulting with an expert.

GF Piping Systems employs several advanced joining technologies for hydrogen applications, including electrofusion, butt fusion, and infrared (IR) fusion. These methods ensure secure and leak-proof connections . These technologies also facilitate faster installation and reduce overall project costs.

• Butt fusion: This method is known for its simplicity, allowing quick setup and precise weld control. It's especially effective for large-diameter pipes. Butt fusion joins two thermoplastic pieces, typically pipes, by heating their ends until they melt and then pressing them together to form a strong, leak-proof joint.
• Electrofusion: Using lightweight equipment, electrofusion provides a semi-automatic process for easier operation. It offers weld data storage for traceability and supports customizable workflows, ensuring strong quality control during jointing. Electrofusion joins thermoplastic pipes  using special fittings with electric heating elements. 
• Infrared fusion:IR fusion machines melt components without contact, preventing contamination and heater sticking. The minimal welding bead ensures good flow. These machines work with materials like PVDF, ECTFE, PP-H, PP-n, PE100, and PFA, covering dimensions from 20 mm to 400 mm.

Discover our jointing technologies.