Valmet to provide pulp technology for DS Smith’ Viana mill in Portugal

PORTUGAL – Finnish company Valmet has received a new order to provide a recovery boiler and upgrade the existing evaporation system at DS Smith’s paper mill in Viana, Portugal.

Under the order, Valmet will deliver the new recovery boiler delivery along with a high-power recovery boiler, related emission control systems and NCG handling, all with extended scope of delivery.

The Finnish company said that the high power of the recovery boiler increases the steam and energy efficiency of the mill.

The emission control solutions consist of a Valmet Electrostatic Precipitator that effectively ensures dust removal and low emissions.

Valmet said that the recovery boiler will be controlled by its DNA automation system and includes Valmet’s advanced process controls and operator training simulator.

The firm will provide Valmet Tubel and Tube technology in a six-effect configuration to upgrade the evaporation system while ensuring maximum availability and mechanical dependability.

Additionally, the upgrade adds 10,100m² to the heating area. The procedure is designed to produce clean condensate.

DS Smith Paper & Recycling head Niels Flierman said: “Our paper-making operations across Europe and North America are focused on providing the paper needed to meet the growing demand for sustainable packaging.

“As one of our larger mills, Viana has a huge role to play in our commitment to remain at the forefront of the market, and to lead the way in the race to net zero in the paper industry.”

The start of the delivery projects is anticipated in the first half of 2025. The purchase was one of the orders Valmet received in the first quarter of 2023, with no information about the order’s value.

The delivery of pulp technology is part of DS Smith’s investment program to modernize the Viana mill with modern equipment for lowering CO2 emissions.

Valmet Recovery, Pulp and Energy VP Jussi Mäntyniemi added: “Our delivery for the chemical recovery island of the DS Smith Viana mill enables the mill to improve energy efficiency, reduce emissions and improve the availability of the whole pulp production process.

“The recovery boiler and evaporation projects are a continuation of the lime kiln upgrade project started last year.”

In March, DS Smith contracted Valmet to supply it with a new containerboard machine to help improve its environmental footprint.

The new machine, which is scheduled for start-up in the middle of 2025, will be installed at DS Smith’s Porcari (Lucca) site in Italy.

The containerboard machine is said to have extensive packages of automation, services and industrial internet applications.

Valmet says that around 40% of all board produced in the world is made by Valmet machinery and it understands that containerboard-making is an integrated process.

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