Südbayerische Portland Zementwerk Gebr. Wiesböck & Co. GmbH, Rohrdorf, Germany, is building near Rosenheim the first German power plant to use hot waste gas from cement production to generate electricity. A consortium of the Siemens Industry Solutions Division and Kawasaki Plant Systems, Ltd. was commissioned to set up the new plant with a waste heat recovery system. Upon completion in April 2012, the plant will cover one-third of the cement works’ power requirements.
Südbayerisches Portland Zementwerk GmbH is part of the Rohrdorfer Baustoffgruppe. The company manufactures cement, transit-mixed concrete, concrete goods and prefabricated concrete parts at 40 production locations in Germany and Austria. The new power plant at the cement works in Rohrdorf will use the hot waste gas from the rotary kiln and the clinker cooler, as well as the residual heat from the chimney, to generate electricity. The power plant is sized to include the future waste heat from the chloride bypass. This efficient and environmentally-friendly project is being supported by the Federal Ministry for the Environment within the framework of its environmental innovation program. With the construction of a new raw mill and a dedusting facility, the cement works in Rohdorf has already made an important contribution to climate protection.