Membrane Technologies

Membrane technology uses brine and electricity with a proton exchange membrane separator between electrodes to produce chlorine, caustic soda and hydrogen

Reliable

High Performance

Efficiency

Between the three different chlor-alkali production technologies, membrane is:

the most modern,
the least energy-demanding,
and produces caustic with a higher level of purity.

Today membrane technology is the only technology adopted for new installations.

In the last decade, De Nora collaborated first with ThyssenKrupp Electrolysis GmbH and then with its joint venture company, Thyssenkrupp Uhde Chlorine Engineers (tkUCE), now thyssenkrupp nucera, in developing the most innovative membrane cell technologies (BM Generation 6 and nx - BiTAC).

Concurrently De Nora developed its proprietary anode and cathode coating formulations- able to sustain the high design current densities of modern membrane electrolyzers, providing:

superior performances in terms of voltage savings (specific energy consumption),
gas and caustic soda quality,
and longevity.

Discover more about our membrane cell technology

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Recoating and technical services:

For the membrane cell De Nora offers a variety of solutions and services globally:

Maintenance and refurbishment / retrofitting and electrodes reactivation of tkUCE cell technologies (BM single element and BiTAC). This service is provided directly to the end customer in China and through tkUCE outside of China;
Maintenance and refurbishment / retrofitting and electrodes reactivation of De Nora cell technologies (MGC, Asahi Glass, DD);
Maintenance and refurbishment / retrofitting and electrodes reactivation of any other type of cells.

Our worldwide presence and flexible structure enable us to react quickly, offering reactivation services based on customers’ needs, and minimizing turnaround times.

The availability of spare elements to be offered on a lease basis helps to minimize production losses during the recoating cycle.

At De Nora, we have developed recoating and repair procedures that include leak tests performed on 100% of the anodic and cathodic elements, thus assuring the 100% mechanical reliability of the recoated elements.

Our coating portfolio provides the best choice of anode and cathode coatings to optimize energy-specific consumption and product quality.