A seawater electrolysis system is a customized electrochemical industrial unit that decomposes raw seawater into hydrogen, oxygen and by-products via applied direct current, widely deployed in offshore facilities, coastal water treatment plants, marine disinfection projects and offshore green hydrogen production sites. Different from conventional freshwater electrolysis devices, this system is specially optimized to adapt to high salinity, high chloride content, corrosive ions and suspended impurities in natural seawater, with targeted anti-corrosion, anti-scaling and reaction control designs for long-term stable marine working conditions.

The function of sodium hypochlorite:

To suppress the growth of microorganisms and organic matter in the titanium tube of the condenser and reduce the heat exchange efficiency, a treatment method of adding sodium hypochlorite to the cooling water is adopted.

On site preparation of sodium hypochlorite using seawater electrolysis process and adding it to cooling water at a certain dosage

Electrolysis of seawater for chlorine production

The actual process of this project is as follows: seawater pre filter → seawater pump → automatic flushing filter → sodium hypochlorite generator → storage tank → dosing pump → dosing point

Working principle:

When seawater is injected into an electrolytic cell, the following reactions occur under the action of direct current:

Ionization reaction: NaCl====Na++CI-

H2O====H++OH-

Electrochemical reaction: Anode 2C1-2e>CL2

Cathode 2H++2e — H2

Chemical reaction in solution: Na++OH – NaOH

2NaOH+CL2– NaClO+NaCl+H2O

Total reaction: NaCl+H2O

Electrolysis of NaClO+H2

Acid washing of chlorine generator

Mouth water tank → Pickling water tank → 10% acid solution → Pickling pump → Generator → Soaking → Discharge

Yantai Jietong Water Treatment Technology Co., Ltd is specialized in the design and manufacture of online Elec-chlorination system and High concentration 10-12% sodium hypochlorite for more than 20years.

If you have specific questions about seawater online chlorination in your specific situation, please feel free to ask for more details. 0086-13395354133 (wechat/whatsapp) -Yantai Jietong Water Treatment Technology Co.,Ltd. !