DSM Fibre Intermediates

Saving energy with a next generation sulfa plant
Geleen (Chemelot site), the Netherlands

The old plant of DSM at the Chemelot site in the Netherlands, dated back to 1952 and was beyond repair. DSM Fibre Intermediates (DFI) built a new ammonium sulfate plant. It needed a steam supply of 50 tons an hour, about ten percent of the total use at Chemelot.

Bilfinger Tebodin helped save a lot of energy by designing a state-of-the-art facility which uses the residual heat from the caprolactam process next door. An integrated team of DSM technologists and Bilfinger Tebodin engineers started work on the conceptual and basic design in 2012. The new plant is an high-end facility, with stainless steel structures, equipment, piping and sophisticated concrete technology to deal with the corrosive effects of ammonium sulfate.

The Next Generation Sulfa project took 1.4 million man-hours to complete. A total volume of 9,000 m3 is in constant motion, which causes vibrations that demand exceptional strength in the building’s construction. Technology and all the equipment was made to unique specifications, applying