Green Hydrogen – Power to X
Power to X is a synonym for all technologies with which surplus electricity from renewable energies can be further processed and stored into the energy carriers gas “Power-to-Gas” (PtG), liquid fuels “Power-to-Liquid” (PtL) and into chemical base materials “Power-to-Chemicals” (PtC) in order to replace fossil energy products. The central raw material for all PtX technologies is ultrapure water, from which green hydrogen (H2) is produced using surplus green electricity as the basic material for all other PtX technologies. Ultrapure water is the most important resource for the production of “green hydrogen” and thus also for all PtX products.
Ultrapure water for electrolysis –
High Purity Water for Green Hydrogen
The central raw material for all PtX technologies is High Purity Water, from which hydrogen (H2) is produced by means of PEM electrolysis and surplus green electricity. Hydrogen serves as the central feedstock for all PtX technologies.
This makes High Purity Water the most important resource for the production of green hydrogen and thus all PtX products.
Our expertise lies in the production, storage and distribution of High Purity Water as well as Water -Refinement- Systems. We deliver turnkey and customized. For maximum diversity, efficiency and process reliability for green hydrogen production.
With our ultrapure water expertise, we specialize in a wide range of electrolysis requirements:
- Feed water – High purity water treatment for electrolysis
- Circuit cleaning – Water refinement for electrolysis
Feed Water – Ultrapure Water Treatment Systems/ Central DI-Water Systems
The purification of the drinking water to ultrapure water for the final PEM electrolysis is carried out in several process stages, adapted to the existing water quality with detailed engineering and the use of combined process technologies:
Prefiltration (backwash filter, gravel filter, ultrafiltration)
Softening plants/ alt. Antiscalant dosing
CO2 removal with membrane degassing
Desalination >99 % via reverse osmosis
Complete desalination via 2nd RO- stage or electrodeionization (CEDI)
Circuit cleaning – Water Refinement for electrolysis
An elementary feature of our systems is the closed-loop cleaning system for recycling the contaminated process water. The circuit cleaning system is either directly integrated into the feed water treatment system or is added to an existing process water treatment system as a stand-alone unit.
The process water, which is under an operating pressure of up to 50 bar and has a maximum temperature of 65 °C, is economically degassed and desalinated by means of a process suitable for continuous operation. We supply all systems in modular form for individual plant integration in the overall electrolysis concept.
Process water loop purification for continuous desalination to <0.1 µS/cm
Particle filtration <1 µm
Hot water HD polisher
Plug & Play: simple handling system for fast polisher changeover
System residual removal of H2 and O2
Process water supply system with storage tank and pressure boosting equipment
Process water cooling system (optional)
UV system for TOC reduction
Modular plants up to 2,000 l/min