Valmet Delivers Energy-Efficient 7-Effect Evaporation Line to Altri Biotek Mill in Portugal for Dissolving Pulp

Valmet is supplying a new, energy-efficient 7-effect evaporation line to Altri Biotek mill in Portugal, as part of Altri’s EUR 75 million project to convert the mill from kraft pulp to dissolving pulp for the textile industry. The delivery significantly enhances the mill’s energy and water efficiency to meet expansion needs. The evaporation line includes Valmet’s Tube and Tubel evaporators, which provide steam savings, long lifespan, high availability, and clean condensates for reuse, reducing freshwater consumption. Scheduled for startup in Q3 2027, the system has a design capacity of 350 tons of evaporated water per hour, producing heavy liquor of 75% dry solids. Altri, a leading European eucalyptus fiber producer, operates three mills in Portugal, including Biotek, with a combined capacity of 1.2 million tonnes of cellulose pulp.