Energy Generation through Power-to-X

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Power-to-X: Ultrapure Water as a Key Resource for Green Energy Carriers

Power-to-X is a term for all technologies that convert excess electricity from renewable sources into energy carriers such as Power-to-Gas (PtG), Power-to-Liquid (PtL), and Power-to-Chemicals (PtC), enabling the storage and transformation of energy to replace fossil fuels.
The central raw material for all PtX technologies is ultrapure water, from which green hydrogen (H₂) is produced using excess renewable electricity, serving as a fundamental feedstock for all subsequent PtX technologies. Ultrapure water is the key resource for producing green hydrogen and, consequently, all PtX products.

Discover the extensive applications of Power-to-X technology!

Your Contact Person

Christopher Lenz
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Ultrapure Water for Electrolysis

The central raw material for all PtX technologies is High Purity Water, from which hydrogen (H₂) is produced using PEM electrolysis and excess renewable electricity. Hydrogen serves as the primary feedstock for all PtX technologies.

Therefore, High Purity Water is the most important resource for the production of green hydrogen and, consequently, all PtX products.
Our expertise lies in the production, storage, and distribution of High Purity Water as well as water refinement systems. We offer turnkey solutions customized to meet specific needs, ensuring maximum diversity, efficiency, and process security for green hydrogen production.
With our ultrapure water expertise, we specialize in meeting the diverse requirements of electrolysis:

  • Feed Water – Ultrapure Water Treatment (High Purity) for Electrolysis
  • Recirculation Purification – Water Refinement for Electrolysis

Feed Water – Ultrapure Water Treatment Systems / Central DI-Water Systems

The purification of drinking water to ultrapure water for final PEM electrolysis is carried out in multiple process stages, tailored to the existing water quality, with detailed engineering and the use of combined process technologies:

  • Pre-filtration (backwash filters, sand filters, ultrafiltration)
  • Water softening systems / alternative antiscalant dosing
  • CO₂ removal via membrane degassing
  • Desalination >99% via reverse osmosis
  • Full deionization via a second RO stage or electrodeionization (CEDI)

Recirculation Purification – Water Refinement for Electrolysis

A fundamental feature of our systems is recirculation purification to recycle contaminated process water. The recirculation purification is either directly integrated into the feed water treatment or added as a stand-alone unit to an existing process water treatment system. The process water, which operates at up to 50 bar and can reach temperatures up to 65°C, is economically degassed and desalinated using a method suitable for continuous operation. All our systems are provided in a modular design, allowing for custom integration into the overall electrolysis concept.

Recirculation purification that meets all requirements!

  • Process water recirculation purification for continuous desalination to <0.1 µS/cm

  • Particle filtration <1 µm

  • Hot water HD polisher

  • Plug & Play: Easy handling system for quick polisher replacement

  • Degassing system for removal of residual H₂ and O₂

  • Process water supply system with storage tank and pressure boosting units

  • Process water cooling unit (optional)

  • UV system for TOC reduction

  • Modular systems up to 2,000 l/min

This is what your finished system could look like!

Service

We offer services ranging from the smallest spare part to full-scale plant maintenance. Contact us to learn more about our comprehensive support services!

Trade Fairs & Events

When it comes to solutions for your water treatment, experience genuine enthusiasm in a personal conversation at our trade fairs and events. Get to know us!

References

Many of our customers are leading companies in their industry that have trusted EnviroFALK water treatment systems for years. See for yourself!

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Recirculation Purification – Water Refinement for Electrolysis

A key feature of our systems is recirculation purification for recycling contaminated process water. The recirculation purification can either be directly integrated into the feed water treatment or added as a stand-alone unit to an existing process water treatment system. The process water, which operates at up to 50 bar and a maximum temperature of 65°C, is economically degassed and desalinated using a method suitable for continuous operation.
All our systems are delivered in a modular design, allowing for custom integration into the overall electrolysis concept.
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