Water
treatment
In recognition of the increasing importance of hydrogen, CAC Engineering GmbH has acquired the necessary know-how for a large-scale hydrogen production plant.
For this purpose, a standardized concept was developed on the basis of the proven alkaline electrolysis technology. It represents the latest electrolysis technology in a modular design and enables uncomplicated scaling and adaptation to various customer requirements.
As an experienced company in the field of design and implementation of chemical plants, CAC contributes extensive know-how to the design and optimization of processes. This in-depth knowledge, combined with the developed plant concept and the selection of reliable suppliers for equipment and process steps, ensures that a hydrogen production plant meets the highest technical and economic requirements.
Focusing on high energy efficiency, flexibility in operation and optimized space requirements, we are able to present a cutting-edge solution for hydrogen production.
All necessary utilities such as nitrogen and instrument air as well as the cooling water unit can be installed for the system.
The use of caustic as electrolyte is realized with the aid of storage tanks, the tank concept is variable and can be adapted depending on the infrastructure of the location.
In addition to process safety and efficiency, the main focus of the system concept is on optimization in terms of minimized investment costs, while at the same time maintaining a minimum economic load of the plant of 15 %.
Water
treatment
Demineralized
water
Electrolysis
Wet hydrogen
(80 °C / < 1 bar)
Gas scrubbing
and cooling
Compression
Compressed
hydrogen
(40 °C / 30 bar [abs.])
Gas purification
and drying
Hydrogen complying with G 260 of the German Gas and Water Association (DVGW)DVGW G 260 and DIN EN 17124 (> 99.97 mol%)
Pipeline
feed-in
Trailer
filling
The plant uses water as a material resource, the source of which largely determines the amount of wastewater generated during production. When using drinking water, for example, it is possible to use up to 90 % of the water originally used as demineralized water thanks to the use of state-of-the-art water treatment technologies.
The process wastewater, which consists of condensed, demineralized water, is recirculated within the system, treated and reused as a feedstock for electrolysis.
No relevant air-polluting emissions or odors are emitted during operation of the plant. Oxygen is released into the atmosphere as a by-product. During start-up and shutdown processes, higher quantities of nitrogen are emitted for a short time. In the event of a malfunction, hydrogen is released from the system into the atmosphere. During normal operation, there are no emissions of hydrogen and nitrogen.