Customer case:

SCA Obbolas new cooking plant

Feb 21, 2018

Obbola’s previous cooking plant was built in 1961 and was a batch system with eight digesters. Despite a number of renovations, the batch digester had reached the end of the road, and in October 2015 it was replaced with Valmet’s CompactCooking, a two-vessel continuous cooking system. It consists primarily of the ImpBin technology for impregnation and a steam/liquor phase digester for cooking wood chips.

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The training in general, and specifically the use of the Valmet simulator, gave a very fast start-up with significantly increased production during the first month.
No production losses at all on the board machine.
Mats Persson, Project Manager
One of the goals of the project was to reduce energy consumption by 30 percent, and we’ve managed to achieve that.
Andreas Vikström, Head of the Cooking and Fiber Department at SCA’s liner mill in Obbola

Summary

Location Obbola, Sweden
Customer
challenge
Worn-out batch digesters from early 60s with large maintenance needs
Solution New CompactCooking system from Valmet
Results

 

  • Record start-up with significantly increased production during the first month.
  • Cleaner pulp and lower maintenance costs
  • Less chemicals need due to more consisten pulp quality
  • Dramatic decrease in energy consumption