ALSTOM to deliver air pollution control equipment to pulp and paper mills

ALSTOM has won three orders to supply both concrete-bottom electrostatic precipitators (ESPs) and fabric filters to reduce particle emissions at pulp and paper mills in Sweden and in Finland.

The first order, from Andritz Oy, is for the delivery of two concrete-bottom ESPs, including flue gas ducting, to the Svenska Cellulosa Aktiebolagets Östrand pulp mill in Timrå, Sweden. Andritz Oy will deliver the new soda recovery boiler, which will increase pulp production at the mill to 420,000 tonnes per year.

The delivery includes engineering, material delivery, insulation, electrification, erection, erection supervision and commissioning of the ESPs. The erection of the ESPs will begin in January 2006 and start-up is scheduled for October 2006. The guaranteed emission level for the precipitators is 30mg/Nm3.

The second order has been awarded by Stora Enso Publication Paper for the delivery and erection of a concrete-bottom ESP for its Kemijärvi pulp mill in northern Finland, replacing two smaller, older precipitators. In addition, the flue gas fan, ducting and the dust transportation system will be replaced. The contact requires a fast delivery time of only eight months for the equipment and a short down-time of the plant in September 2005.

The Kemijärvi pulp mill produces 240,000 tonnes of chemical softwood pulp per year for the production of high grade printing and writing paper.

For the third order, ALSTOM will deliver one fabric filter plant to clean the flue gases at a new biofuel-fired power plant in Rauma. The contract has been signed with Rauman Voima Oy. Rauman Voima Oy is building the plant at the paper mill of UPM-Kymmene in the city of Rauma. Rauman Voima is owned by Pohjolan Voima Oy (PVO) and Rauma Energy. The power plant will be completed in 2006.

Fabric filters are used to obtain the lowest possible dust emission level. The guaranteed emission level for the fabric filter in this project is only 5 mg/Nm3. Erection on the site will start in April 2006 and the start-up of the filter is scheduled for the end of October 2006. This fabric filter will be the third one delivered by ALSTOM to a biofuel boiler in the pulp and paper industry. The previous ones have been delivered to Myllykoski Paper in Finland in 2000 and to Stora Enso Langerbrugge in Belgium in 2004.

When completed, the power plant will generate electricity, process steam and district heating for for UPM Rauma mill and for Rauman Energia. The power plants main fuels will be bark and felling residue such as branches, crowns and stumps. Peat, bio-sludge and small amounts of refuse-derived fuel will be used as additional fuels. 
 

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