The future belongs to renewable energies. Experts agree notwithstanding that up to the year 2030 non-renewable energies will have 75 percent of the energy mix worldwide. After petroleum coal is in this context the world’s most important fossil energy source. In the year 2010 it covered 30 percent of global primary energy consumption, in Germany just under 40 percent of domestic power generation. In 2009 every fourth kilowatt hour of power consumed in Germany came from brown coal. Domestic mineral coal production is on the decrease due to the expiration of subsidies in 2018. By contrast, significantly more mineral coal than brown coal is being produced globally.
The flue gas formed by every coal burn is being scrubbed in an ecologically responsible way in flue gas desulphurisation plants (FGDP) inter alia. FGD gypsum emerges as a byproduct of this process – about 7 million tonnes annually worldwide. This base material is required in the construction and cement industry in very large quantities, e.g. in the manufacture of drywall. For FGD gypsum dewatering in vacuum belt filter systems the largest coal power stations in the world rely on filter belts of the VACUBELT type from GKD – Gebr. Kufferath AG. Virtually every well-known plant manufacturer relies on the efficiency of these innovative filter cloths too.
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