Andritz has successfully started up the new Andritz A-ConApex cooking system supplied to the Altri Group's Celbi eucalyptus pulp mill in Leirosa, Portugal.

The A-ConApex continuous cooking technology for fines, rejects and non-wood materials is an optimized cooking solution developed by Andritz. It is the first of its kind in the world and can process and utilize almost any type of cellulosic raw material and fines from chip screening and screen room rejects, thus optimizing total use of wood raw materials and maximizing pulp yield. With the new cooking system, Altri is able to increase its daily production at the Leirosa mill by around 2.5% and reduce wastage of wood raw materials.

The new cooking system reached its nominal capacity of 60 admt/d during the first few days in operation and was integrated into the existing Andritz Lo-Solids Cooking process, which was started up in 2017.

Celbi, a part of the Altri group, is one of global producers of cellulosic fiber in Europe, with an annual production capacity of about 800,000 tons.

Andritz Pulp & Paper provides equipment, systems, complete plants and services for the production of all types of pulp, paper, board and tissue.