Finland-based combustion technology specialists, KPA Unicon Oy and Metsä Tissue AB, part of Finnish forest industry major Metsä Group have signed a contract for the delivery of an 8 MWth steam boiler plant to Metsä Tissue Nyboholm paper mill in Sweden.
The new plant will enable efficient combustion of process residues, such as biosludge in addition to bark and woodchips, generating steam for the paper mill and is estimated to be operational by the end of October 2017.
The turnkey delivery does not include ground and foundation works. The contract covers all process equipment as well as installation work, commissioning, and training of operating personnel.
After a comprehensive project survey, Metsä Tissue decided, that KPA Unicon is the right choice of the boiler plant supplier, taking into account the boiler technology and efficiency. The plant is able to use fuels in a flexible way, which also had a key role in the choice, together with the NOx emissions. That is why I look forward to cooperating with KPA Unicon and commissioning the boiler by October 2017, said Mats Rogebrant, Technology & Development, Metsä Tissue AB in a statement.
Biograte combustion technology
The heart of the plant is Biograte combustion technology, which according to KPA Unicon, is specially designed for the utilization of various biofuels for energy production with effective and good environmental values.
The plant is equipped with KPA Unicon’s PlantSys system for local and remote control. PlantSys collects data from the process equipment and makes the operation of the plant easy and reliable, it also visualizes the data in an easily understandable manner.
PlantSys also enables trusted remote access to the plant to optimize the parameters and predict future service and maintenance needs.
This boiler plant project is a good example of how process residues, such as biosludge, can be used to produce energy in a sustainable way. The Biograte boiler is characterized by very low NOx emissions without using any additional equipment, so-called BAT (Best Available Technology). It is important that the pulp and paper pulp industry can use the least valuable by-products such as biosludge, bark, and wood residues as fuel. Biograte combustion technology is the best solution on the market, for example, for combustion of wet biomass with high efficiency and minimal environmental impact, said Timo Valkeinen, Sales Manager Scandinavia, KPA Unicon.