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Seawater-Based On-site Hypochlorite Systems

Biofouling Control & Marine Growth Prevention

Across marine environments, seawater is essential for cooling, firewater, ballast, and service water. Mussels, barnacles, algae, and other organisms quickly foul piping and heat‑transfer surfaces, driving corrosion, restricting flow, and causing costly efficiency losses or unplanned shutdowns.

Chlorine is one of the most effective methods for Marine Growth Prevention, yet traditional delivery options come with significant drawbacks. Pressurized chlorine gas and high‑strength liquid hypochlorite are hazardous to transport, risky to handle, expensive to store, and vulnerable to supply interruptions.

Electrochlorination provides a safer, more economical, and more reliable MGP solution. By generating sodium hypochlorite directly from seawater and electricity, it eliminates the hazards and logistics of bulk chemicals while delivering continuous, effective protection against marine growth.

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How it Works

Process Overview

Seawater FeedIntake pumps feed seawater to the facility at high pressure. A side stream of pressurized seawater is piped to the electrolyzer cells where seawater gets converted to sodium hypochlorite.

Transformer/RectifierPower from the facility is converted from AC to DC by the Transformer/Rectifier and delivered to the electrolyzer cells at the required voltage and current.

Modular ConfigurationEach generator system has one Base Module, which includes a control panel and on-skid clean-in-place. Up to seven Cell Modules (2 shown) can be connected to one base module, depending on production requirements.

Hydrogen ManagementHydrogen gas produced as a byproduct of the electrochemical process is safely handled in the hypochlorite tank. Blowers and instrumentation ensure proper air handling and ensure forced ventilation of the tank headspace to prevent accumulation.

Sodium Hypo StorageSodium hypochlorite solution is stored in the Hypochlorite tank. Hypochlorite is fed to the dosing point, as required.

Why Electrichlor

The Electrichlor Advantage

Cell Technology

Our unique, nested concentric tube design is manufactured in 100% titanium.

Ease of Operation

Designed to operate on seawater, our cells handle water variability with ease.

Modular Design

Built with expansion in mind, our skids allow for additional capacity when you need it.

Safe & Reliable

All titanium design ensures no cracks or leaks, improving safety for your facility.

Applications

Keep Operations Flowing

Power Generation

Marine growth prevention and biofouling control using the sea

Oil & Gas / Marine

Robust solutions for the harshest environments

Product Portfolio

ELA-4KG (4-8 kg/h)

ELX-4KG (12-32 kg/h)

ELM – 4KG

The ELM system utilizes a base module, housing controls and a clean-in-place system, and cell modules, which house the Electrichlor cells. Up to six cell modules can be utilized with one base module, offering a modular and compact solution.