Researchers at the Norwegian University of Science and Technology (NTNU) have developed an innovative technology that addresses two significant environmental challenges: utilizing industrial waste heat and generating clean water. This breakthrough was highlighted in a recent university press release.

Industrial heat is a major component of global energy consumption. After being used in industrial processes, a significant portion of this heat is typically wasted, released into oceans or the atmosphere. In Norway alone, it is estimated that 20 TWh of heat is wasted annually—equivalent to half the energy demand of Norwegian households or the energy used for heating homes. Kim Kristiansen, a doctoral researcher in NTNU’s Department of Chemistry, sought a more efficient way to repurpose this wasted energy.

British-Australian mining company Rio Tinto is set to debut a novel carbon-free aluminum smelting technology at its facility in Canada. This initiative aims to accelerate the shift to more environmentally friendly production methods and significantly reduce greenhouse gas emissions.

The Elysis technology, which replaces traditional smelting processes, promises to eliminate all direct greenhouse gases, producing oxygen instead. This groundbreaking technology will be installed at Rio Tinto’s Arvida smelter in Quebec, where the company will design, engineer, and build a demonstration plant with ten pots operating at 100 kiloamperes (kA).