Cost savings Cost savings due to closed loop control of additives An economic decision for closed loop-control of deaerator chemicals, retention aids and fixatives. Braviken is a paper mill located outside Bråviken, Norrköping in Sweden. It is owned by Holmen Paper and produces magazine, newsprint, colored newsprint and telephone directory paper. Braviken experienced that laboratory measurements failed to effectively monitor process and product quality levels and therefore decided for online/ inline measuring technology at PM 53. The machine produces newsprint with basis weights between 40 and 49 g/m3 with a maximum production capacity of 41 t/h. DIP and TMP furnish components are each approximately 50%. Investigations were devoted to stabilize the wet end through closed loop-control o

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