ANDRITZ supplied a woodyard for the project with the world’s biggest HHQ-Chippers, which guarantee excellent chip quality and thereby enable a high pulping yield. In addition, the supply included the world’s largest single fiberline, two energy-efficient pulp drying lines, the largest evaporation plant in the western hemisphere for black liquor, and one of the world’s largest and most energy-efficient white liquor plants, which meets the highest environmental standards.
Furthermore, ANDRITZ supplied the largest recovery boiler in Latin America. It can burn all harmful, non-condensable gases and also methanol, supplies steam and energy for the entire mill, and generates a substantial energy surplus that is fed to the public grid. In addition, ANDRITZ delivered a chloride and potassium removal system to enhance the chemical recovery process as well as a liquid methanol plant for production of biofuel.
Another mill that went into operation in 2017 is the one in Äänekoski, a small town in Central Finland. The Metsä Group, a Finnish forestry industry group, has built a bioproduct mill with a particularly sustainable design. The mill produces 1.3 million tons of pulp a year. In addition to high-quality pulp, it generates a broad range of other bioproducts, such as tall oil, turpentine, bioelectricity, and wood fuel. Furthermore, 90 percent of the wood used is of certified origin and fully traceable.