The Production of Vacuum Salt
NewsVacuum salt is produced via the evaporation of brine; the energy used is either uniquely thermal (steam) or combined with electricity for the mechanical recompression of the steam.
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In modern facilities, the heat energy required for the evaporation of the brine and the crystallising of the salt is normally obtained from high pressure steam in natural gas fired co-generators which co-produce electric power. |
At the salt works in Varangéville, the energy efficiency is even more advanced: the high pressure steam co-produces electric power twice thanks to a steam turbine coupled with a turbo-alternator. This electric power is consumed on site at the facility in Varangéville and provides more than 50% of its electricity requirements.