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Germany: Chlor-Alkali Electrolysis First Membrane Electrolysis Plant in Germany Completed

| Editor: Alexander Stark

Chemieanlagenbau Chemnitz GmbH (CAC) has announced the completion of its first chlor-alkali electrolysis plant in Germany.

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The newly built membrane electrolysis plant in Ibbenbühren was implemented for the first time in Germany by the Saxon engineering service provider for plant engineering and process engineering, CAC.
The newly built membrane electrolysis plant in Ibbenbühren was implemented for the first time in Germany by the Saxon engineering service provider for plant engineering and process engineering, CAC.
(Source: Neolyse Ibbenbühren GmbH)

Ibbenbüren/Germany — Until now, clients and jobsites of the Saxon plant manufacturer have been primarily located in Western and Eastern Europe as well as in Russian-speaking countries. After more than 15 years of implementation of chlorine-alkali projects, the company has realized a plant with this technology in Germany, explained Jörg Engelmann, CEO of CAC.

The new plant for Akzo Nobel Speciality Chemicals and Evonik Industries at the Ibbenbüren site was commissioned by the two companies. It will be operated by Akzo Nobel within the framework of the joint venture “Neolyse Ibbenbüren GmbH”.

The new membrane electrolysis plant, based on technology of Asahi Kasei in Japan, replaces the existing mercury-based plant. The energy-saving membrane process increases economic efficiency and ensures compliance with the corresponding future legal requirements. According to the plant operators, this new production process at the site improves the ecological footprint of every ton of chlorine produced in Ibbenbüren by 25 to 30 %.

The planning order on the basis of an EPCM contract included detail engineering, procurement services, site management as well as commissioning support up to the performance test run of the plant.

The membrane electrolysis in Ibbenbüren is designed for an annual capacity of 120,000 tons of potassium hydroxide solution and 80,000 tons of chlorine. The future operation of the business is clearly defined: Chlorine as well as hydrogen produced during electrolysis will be further processed by Akzo Nobel on site or sold to customers. Evonik will market the potassium hydroxide solution produced in Ibbenbüren or transport it by ship to its own site in Lülsdorf near Cologne for further processing. In Lülsdorf, Evonik processes the potassium hydroxide solution, inter alia, into potassium carbonate (potash).

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