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Management Side
Technical Side
Valmet to Supply a Sulfuric Acid Plant to Finland
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Espoo, Finland 20 May 2016 -- Valmet will supply a sulfuric acid plant to Metsä Group's bioproduct mill in Äänekoski for in-house sulfuric acid production. By means of the new sulfuric acid plant of its own the bioproduct mill can utilize the chemicals in the odorous gases of the pulp manufacturing process. This will help to reduce the wastewater load considerably. The start-up of the plant is scheduled for the third quarter of 2017.

Valmet's delivery is part of Metsä Group's sulfuric acid plant investment that is valued at roughly EUR 20 million. The order is included in Valmet's second quarter 2016 orders received. The value of the order is not disclosed.

"The sulfuric acid plant producing process chemicals from sulfur compounds from odorous gases is a remarkable step towards closed chemical circulation and further improves the environmental performance of the bioproduct mill," says Timo Merikallio, Project Director of bioproduct mill at Metsä Group.

"More efficient utilization of the raw materials and putting circular economy into practice within the industry increases the need for new innovations. The sulfuric acid plant technology that will be delivered to Äänekoski is developed by Valmet. We have developed also multiple new biotechnology processes for pulp and energy industries including lignin and bio-oil production," says Risto Hämäläinen, Director, Environmental Systems at Valmet.

Technical information about the delivery

The order includes a sulfuric acid plant developed by Valmet. The plant consists of a concentrated non-condensable gas (CNCG) incinerator and a sulfuric acid converting plant. The production capacity of the plant will be approximately 35 tons of sulfuric acid per day. This will be the world's first larger scale sulfuric acid plant that will be in operation at a pulp mill.

The new plant will enable the bioproduct mill to become nearly self-sufficient in sulfuric acid, as the odorous gases produced in the pulping process can be converted into sulfuric acid. This will bring significant environmental advantages. The amount of sulfate lead to the mill's effluent treatment plant will be reduced and the sulfate load in the nearby waterways will be smaller compared to the current mill in Äänekoski. The CNCG incineration plant can be used as a back-up boiler for producing process steam by incinerating CNCG, tall oil pitch or liquid methanol.

Information about the customer Metsä Group

Metsä Group is a responsible forest industry group whose products' main raw material is renewable wood from sustainably managed northern forests. The company focuses on tissue and cooking papers, fresh forest fibre paper-boards, pulp, wood products, and wood supply and forest services. Metsä Group's sales totalled EUR 5 billion in 2015, and the company employs approximately 9,600 people. The Group operates in some 30 countries. Metsäliitto Cooperative is the parent company of Metsä Group and is owned by approximately 116,000 Finnish forest owners.

Valmet is the leading global developer and supplier of process technologies, automation and services for the pulp, paper and energy industries. We aim to become the global champion in serving our customers.

Valmet's strong technology offering includes pulp mills, tissue, board and paper production lines, as well as power plants for bioenergy production. Our advanced services and automation solutions improve the reliability and performance of our customers' processes and enhance the effective utilization of raw materials and energy.

Valmet's net sales in 2015 were approximately EUR 2.9 billion. Our 12,000 professionals around the world work close to our customers and are committed to moving our customers' performance forward - every day. Valmet's head office is in Espoo, Finland and its shares are listed on the Nasdaq Helsinki.



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