BRAZIL (News release) -- Klabin is building at the Puma II Project, together with the new packaging paper production line in Ortigueira, Paraná, the first ever sulfuric acid plant integrated to a pulp and paper mill in Brazil, which will make the unit self-sufficient in producing the acid.
Supplied by Andritz, the plant will reuse the residual gases from the wood cooking process to transform them into sulfuric acid, which will be used during the production of pulp and paper at the mill.
Sulfuric acid is one of the main raw materials of a pulp mill. "Construction of such a plant means intelligently using the sub-products generated throughout the production chain as economically viable and ecologically sustainable products, thereby adding value to our production," says Walter Oliveira, project manager at the Recovery & Utilities area in Klabin.
Sulfuric acid is used in several components of the production process, such as drying machines, the tall oil plant and fiber lines, among others. This new technology, besides being aligned with the sustainability that Klabin seeks to implement in all phases of the process using environmentally responsible technologies, also enables cost reduction through inhouse production of sulfuric acid and greater independence in sourcing the raw material.