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Supply of key production technologies for new bioproduct mill in Finland

International technology Group ANDRITZ delivers key production technologies for Metsä Group’s new bioproduct mill with an annual capacity of 1.3 million tons of pulp in Äänekoski, Finland.

The new bioproduct mill of Metsä Fibre, part of Metsä Group, will be a next-generation bioproduct mill which can convert wood raw material into biomaterials and bioenergy in addition to producing high-quality pulp. It will not use any fossil-based fuels as all of the energy required will be generated from wood and is the largest investment of the forest industry in Finland. The order value for ANDRITZ is over 100 million euros.

ANDRITZ’s scope of supplies includes the core equipment for:

  • A complete wood processing plant with three debarking and chipping lines, three stacker-reclaimer chip handling systems, and bark handling. 
  • A softwood and hardwood fiberline based on DD-Washer technology. The softwood capacity of this line will be the highest in the world (3,900 tons per day).
  • A recausticizing plant, which will be the largest in Europe (white liquor production of 16,000 m3/day), and world’s largest single-line recausticizing plant.
  • The world’s most energy-efficient black liquor evaporation plant with the highest capacity in Europe (1,650 tons/hour).

In addition, ANDRITZ will also deliver chloride removal systems to enhance the chemical recovery process and to produce liquid methanol, which will be used as a biofuel source.