Chlor-alkali production
Energy efficiency, strict emissions regulations and secure waste handling are challenges faced by the chlor-alkali industry. Manufacturers need reliable, energy-efficient and sustainable processes to produce chlorine, hydrogen and caustic soda. To meet these needs, Alfa Laval has a broad range of high-performance heat transfer components and complete engineered solutions that cut costs and raise yields.
Reliable, energy-efficient and sustainable
- Broad range to fit easily into heat transfer positions along all electrolysis proces
- Significantly lower installation height
- Compact design and highly efficient systems
- Vast chlor-alkali process experienced experts team
- Low operating temperatures, reduces corrosion rates
Chlorine is co-produced with caustic soda by the electrolysis of sodium chloride in the chlor-alkali process. Chlorine is used for Vinyls/PVC production, organic chemicals production, chlorinated intermediates production, to sterilize water and sewage, to bleach pulp and textiles, in inorganics and , inorganic chemicals production, alumina manufacture, textile treatments, soap and detergent production, neutralization and other applications. Every year 10-20 new plants are built in the world.
Producing chlorine, hydrogen and caustic soda involves electricity-intensive processes, which account for about half of the total manufacturing costs. Chlor-alkali producers and EPC companies can rely on Alfa Laval’s well-proven components and ability to supply energy-saving heat transfer equipment and caustic evaporation systems.
Our broad range of high-performance gasketed, semi-welded and welded heat exchangers fit easily into heat transfer positions along all electrolysis process lines. For duties such as brine pre- treatment, wet chlorine gas cooling, hydrogen gas cooling and electrolyte heating and cooling, Alfa Laval has vast chlor-alkali process experience in supplying equipment to chlor-alkali producers the world over.
Learn more
You can read more about the efficiency, practicality and technical details of the Alfa Laval solutions for concentration of caustic soda and caustic potash by downloading the product leaflet.
Flexible, energy-efficient caustic evaporation systems
- Available in 1 to 4-effect configuration, and up to 2,000 ton/day
- Capacity easily upgradable thanks to modular design
- Significantly lower installation height
- Less power and steam consumption than traditional shell-and-tube solutions
- Available in standard 32-50% concentration, and customized configurations up to 75% concentration