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.
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
