European Chemical Industry News & Insights

New Membrane Electrolysis Plants Operational in Gendorf and Knapsack

At a glance
  • Conversion to membrane technology completed by June 2009
  • Chlorine capacity increased from 390,000 to 430,000 metric tonnes per year
  • Sites involved: Gendorf and Knapsack
  • Key substances: chlorine, caustic soda, PVC

Project Completion

The conversion of chlor-alkali electrolysis plants at Gendorf and Knapsack to energy-saving and environmentally friendly membrane technology was completed by the end of June 2009. This upgrade ensures that all chlorine production for Vinnolit's German PVC production sites now utilizes this modern technology.

Increased Capacity

With this investment, chlorine capacity has increased from 390,000 to 430,000 metric tonnes per year. This enhancement improves the raw material supply for connected PVC production and extends the delivery capabilities for the important co-product, caustic soda.

Balanced Production

Managing Director Dr. Ralph Ottlinger highlighted that Vinnolit has expanded production facilities for intermediate products and closed the chlorine gap in Gendorf. The Knapsack site now has a chlorine capacity of 250,000 tonnes, while Gendorf has 180,000 tonnes, resulting in two large, state-of-the-art monomer sites with balanced capacities across all production stages.

Sustainability and Efficiency

The conversion to membrane technology also aligns with the European chlorine industry's voluntary commitment to sustainable development. Improved energy efficiency helps mitigate the impact of rising energy prices and contributes to reducing CO2 emissions.