Title: EPD Gipsplate 13x600x2400 Gulv GG13 (A20 vurderingsdokument).pdf
Liquefied Natural Gas (LNG) is one of the most environmentally friendly fossil fuels.Comments relating to recovered matter: Gypsum slurry is made up from stucco, water and other additives to control production and performance. To get the gypsum slurry to flow, excess water is added to the stucco. This is gently evaporated off during a 35- 40 minutes pass through a long, drying chamber running on LNG.Extensive R&D programs have been devoted to the drying process in Gyproc AB, as this has an effect on the quality and environmental impact of the finished product. Organic dispersants are evaluated and used mainly to reduce the amount of water used and eventually reduce the drying time. The evaporated water, emitted to air during the drying process, contains valuable thermal energy being assessed for re-used in other applications.