The Metso-supplied evaporation plant and recovery boiler for Eldorado Celulose e Papel S.A. were started up successfully on December 1, 2012, at Eldorado’s Três Lagoas mill in Brazil. The official inauguration ceremony of the mill was held last December 2012. The Três Lagoas mill, the largest single-line pulp mill in the world, counts on Metso’s cutting-edge equipment in its recovery line. The evaporation plant, with a capacity of 1,600 tonnes/hour evaporated water, is the largest single line evaporation plant in the world with the purpose of concentrating black liquor up to 80% dry solids content for efficient and low-emission combustion in the recovery boiler.
The recovery boiler is also among the largest in the world in operation and has a 6,800 tonnes of dry solids/day black liquor burning capacity and steam generation of 1,109 tonnes of steam/hour. The steam will be used in the pulp manufacturing process and in power generation to supply the entire mill and produce a significant amount of power surplus. Additionally, the recovery boiler has high chemical recovery efficiency making the mill economically and environmentally sustainable.