28 PROJECTS & CONTRACTS


Pulp Paper & Logistics


Pulp drying and biomass boilers for the Arauco mill in Chile


investments in the world, a pulp drying and baling, recovery boiler and biomass boiler has been ordered from Valmet for Arauco’s MAPA project in Chile. Arauco is investing US$2.35 billion to increase production capacity and to build the new pulp production line at the Arauco Mill in the Biobío Region, Chile. Valmet is not revealing the value of the order but projects of this scope usually cost up to €300 million (US$342m). The project includes the


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construction of a new production line, Line 3, with an annual capacity of 1.56 million tons that will increase capacity at the mill to 2.21m tons. The new line is expected to start operation in 2021. Franco Bozzalla, senior vice-


president for pulp and energy at Arauco, explained the reasoning


s part of the construction of what will be one of the largest pulp


2,500 tons/day and a web width of eight metres for each machine, with a possibility for future capacity increase through debottlenecking. The tailored boiler island


consists of a recovery boiler with a daily capacity of 6,300 tons dry solids (tDS) and a fluidised bed power boiler with thermal capacity of 160MW. The recovery boiler features


behind the order. “In addition to high quality pulp,


the expansion project allows us to continue generating clean and renewable energy from forest biomass, due to the construction of a new biomass boiler,” he said. “The boiler supplies clean energy to the mill and the surplus electricity will be delivered to the National Electrical Grid.” Bertel Karlstedt, business line


president for pulp and energy at Valmet, added: “We have had good cooperation with Arauco for over 15 years, and we are happy to deliver key technology for the


company’s state-of-the art pulp mill. This delivery is significant also for our project and technology teams globally. The project is led from Finland and key components are produced in our own workshops. The employment impact in Finland is close to 300 man-years.” The pulp drying line will have a daily capacity of 5,000 air dry tons (Adt) and consist of two complete drying machines, including four high capacity baling lines. The pulp drying machines are designed for high availability with production capacity of


advanced high-power features, enabling maximum energy efficiency and high electricity production, and smelt spout cleaning robot for improved safety and operator friendliness. The power boiler is tailored to burn local biomass, such as eucalyptus bark, sawdust, shavings and residues as well as sludge. Arauco operates in the forestry,


pulp, lumber, plywood, composite panels, millwork, and renewable energy businesses, with 42 mills in North America, South America, Europe and South Africa, and yearly sales of around $5bn.


Mondi SCP orders OCC and containerboard lines


Old corrugated container (OCC) and OptiConcept M containerboard lines with a winder are being supplied by Valmet to Mondi SCP’s mill at Ružomberok in Slovakia, with an expected start-up at the end of 2020. They comprise a new PM19 line, which is designed to produce an environmentally- sound containerboard grade, kraft top white, which combines the strength, printability and appearance benefits of a white


January/February 2019


virgin fibre top layer with the economic advantages of a recycled fibre bottom layer. The stock preparation line will include a hardwood stock line, a save-all and broke system, an approach flow system to the OCC line, which contains pulper feeding and vertical pulper systems, high and low consistency (HC and LC) cleaning systems and coarse and fine screening systems with fractionation, thickening disc filters for short and long fibre


lines and long fibre dispersion system. The containerboard machine will include an OptiConcept M containerboard machine from headbox to reel followed by an OptiWin Drum two-drum winder. The winder will be equipped with Dual Unwind giving even higher capacity due to a one-minute parent roll change. The delivery will also include an OptiAir high humidity hood and other related air and ventilation systems, a surface starch preparation system


and supply system for sizer. “During the concept


development phase, Valmet was actively promoting technical solutions. We are confident of Valmet’s technical competence and concept. In addition to the well proven technology of Valmet, we also appreciate the continuous development and innovations of Valmet giving us further development opportunities in the future,” says Herbert Hummer, project director at Mondi SCP.


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