de fr en

TMP - Thermo Mechanical Pulp

a high quality paper fibre material from wood

The TMP production plant at Perlen represents in all respects today’s state-of-the-art technology. It contains a variety of technological developments geared to increase the efficiency of the system, to minimize production cost – especially energy costs and at the same time to obtain the best pulp quality for the very demanding production programme of Perlen.

Technical Datas

Construction history
Start of construction	August 1993
Commissioning	June 1994
Conversion to the RTS process	May 1996
Rebuild (capacity/single-level process)	April 2000
Rebuild (capacity)	November 2003
Installed output for refining drivers
Main refiner (TC 66)	22 MW
Reject refiner (SB 150)	8 MW
Dimensions
Storage capacity for wood chips (silos)	11,500 m3
Storage capacity for low-bleached TMP	1,000 m3
Storage capacity for bleached TMP	1,300 m3
Capacities
TMP output	up to 380 t/day
Steam output	up to 450 t/day
Stock
Wood chips - from firs (spruce fir and silver fir) Wood chip grade - fresh wood (high moisture level, no colorations) - contains no bark Origin - 80% from sawmills - 20% from own wood chips from thinnings/small sized wood cuttings