The energy-efficient, next-generation pulp mill is the core of the bioproduct mill and a network of companies manufacturing various types of bioproducts will broaden around this nucleus. These companies are converting pulp production side streams into bioproducts that offer higher added value than before. The ecosystem created by the bioproduct mill is unique in the world. It is generating extensive value chains. The bioproduct mill’s inclusion of new processes is creating synergy benefits for the entire system. The goal is for the bioproduct mill not to generate any landfill waste.

The ecosystem created by the bioproduct mill is unique
in the world.

Products that are already being manufactured at existing pulp mills are constituting the core of the product selection of the bioproduct mill:

  • High-quality pulps to be used as raw materials for paper, tissue paper and paperboard.
  • Tall oil and turpentine. Tall oil is used to produce glue, ink, paints and biofuels, among other products. Turpentine is used in the production of odorants and paints, for example.
  • Bioenergy products, such as bioelectricity, process steam, district heat and bark-based solid fuel. District heat can be used by the town of Äänekoski, for example.


Bioproduct concept is progressing according the plan

A decision on a new bioproduct, product gas, was made in April 2015. This gaseous biofuel made from bark is used as the main fuel for the lime kiln at the bioproduct mill.

The bioproduct concept is complemented by the agreements made in February 2016 with biogas manufacturer EcoEnergy SF Oy and biocomposite producer Aqvacomp Oy.

The biogas plant that EcoEnergy SF Oy was built at Metsä Group's bioproduct mill in Äänekoski is the first in the world to make use of the sludge generated in pulp production. The plant produces approximately 20 gigawatt hours of biogas a year, which is equal to the annual fuel consumption of roughly 1,800 passenger cars. The possible uses of the biogas include transport fuels.

Aqvacomp Oy is investing in a plant that produces biocomposite. The biomaterial, which combines pulp fibre and plastic, can be used in the electronics and automobile industries as a substitute for plastic, for example. The production plant that Aqvacomp will build integrated to Metsä Group's Rauma pulp mill will begin operating in 2017. Aqvacomp is also exploring the possibility to build a bigger plant in Äänekoski.

Other potential bioproducts include for example textile fibres and lignin products. We are studying several processes and product paths and will implement them gradually. Reaching the goals will take time after the new bioproduct mill´s start-up.

Information about pulp

The core process of the Metsä Group bioproduct mill is producing high-quality pulp. The global demand for softwood pulp is growing steadily, particularly as a result of increasing consumption in Asia. The new mill is making use of high-quality northern softwood fibre, and its cost competitiveness is good.

The core process of the bioproduct mill is producing high-quality pulp.

The mill is producing 1.3 million tonnes of pulp per year. The pulp mill is consisting of two main sections. The fibre line is processing wood into pulp. The recovery line is producing bioenergy from dissolved wood from pulp cooking, and cooking chemicals will be collected for reuse. The pulp mass is used as a raw material in the manufacture of paper, paperboard and other products.

In-depth fibre expertise is crucial when the goal is to produce exactly the right types of raw materials for various end products. The bioproduct mill is cutting-edge in all respects, and its pulp production process is progressive in terms of technology and energy efficiency.

Resource efficiency and renewable energy

The bioproduct mill is helping Finland achieve its renewable energy targets.

The mill is increasing the share of renewable energy in Finland by around two percentage points.

Total energy production at the mill:

  • Electricity self-sufficiency: 240%
  • Total electricity production: 1,800 GWh per year
  • District heat and steam: 640 GWh per year
  • Solid fuels, or wood energy, for sale: 550 GWh per year (around 750 GWh per year of the energy created by bark generated at the bioproduct mill is used to produce product gas at the mill)

The new bioproduct is using 100 per cent of the raw materials and side streams to produce bioproducts and bioenergy. The bioproduct mill is not using any fossil fuels whatsoever. All of the energy needed by the mill will be produced from wood.

The bioproduct mill is not using any fossil fuels.

Its business model is based on an efficient partner network, in which new products are upgraded in cooperation with various players. Businesses of various sizes and in various stages of development that specialise in biomaterials and bioenergy, for example, are  invited to join the ecosystem.

The ecosystem created by the bioproduct mill is unique in the world.

  • It is generating extensive value chains.
  • The inclusion of new processes in the bioproduct mill is creating synergy benefits for the entire system.
  • The bioproduct mill is cooperating closely with the town of Äänekoski in district heat production, for example.
  • It also offers significant opportunities for small and medium-sized enterprises to manufacture innovative, high-added-value bioproducts.
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