New Construction for Neolyse Ibbenbüren GmbH at the AkzoNobel site in Ibbenbüren

Neolyse Ibbenbüren
Photo: Copyright by Neolyse Ibbenbüren GmbH

Completion of a Membrane Electrolysis Plant in Germany for the First Time

Chemieanlagenbau Chemnitz GmbH (CAC) has successfully built its first chlor-alkali electrolysis plant in Germany. Until now, cli-ents and jobsites of the Saxon plant manufacturer have been primarily located in Western and Eastern Europe as well as in Russian-speaking countries. "We are very pleased that after more than 15 years of successful implementation of chlorine-alkali projects we have realized a plant with this technology in Germany," explains Jörg Engelmann, CEO of CAC.
The new plant for AkzoNobel Speciality Chemicals and Evonik Industries AG at the Ibbenbüren site was commissioned by the two companies. It will be operated by AkzoNobel within the framework of the joint venture “Neolyse Ibbenbüren GmbH”.
The new membrane electrolysis plant, based on technology of Asahi Kasei Corporation in Japan, replaces the existing mercury-based plant. The energy-saving membrane process increases economic efficiency and ensures compliance with the corre-sponding future legal requirements. According to the plant oper-ators, this new production process at the site improves the eco-logical footprint of every ton of chlorine produced in Ibbenbüren by 25 to 30 percent.

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 AkzoNobel 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 potassi-um hydroxide solution, inter alia, into potassium carbonate (potash).

"This project was an issue of most concern to both of us and our clients, because the new plant not only allows for an improved energy balance, but also ensures many jobs in Ib-benbüren. Therefore, I am more than pleased that we have completed this order at a high level of quality and within the agreed financial and time frame boundaries, "says Engel-mann.

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