refrigerants

Green Cooling Summit 2026

With 90 million air conditioners sold annually — and demand rising due to climate change and growing incomes — why is the shift to climate-friendly refrigerants like R290 still so slow?

Join us on 19 and 20 May 2026 to discuss this topic. The virtual summit is jointly organized by the German Environment Agency (UBA) and GIZ Proklima on behalf of the German Federal Ministry for Environment, Nature Conservation and Nuclear Safety (BMUKN) and the Federal Ministry for Economic Cooperation and Development (BMZ).

Key Areas of Focus:

Measuring Thermodynamic Properties of Ionic Liquids for the Separation of Azeotropic Refrigerant Mixtures

Refrigerants, essential to heating and cooling systems, are estimated to be used in large quantities daily (approximately 850 million kilograms). While advancements on past generations of refrigerants have reduced toxicity and flammability, current hydrofluorocarbon (HFC) refrigerants are being phased out due to their high global warming potential (GWP). Recycling and repurposing HFCs is challenging, as many are azeotropic mixtures that cannot be separated using conventional distillation.

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