4 INDUSTRY NEWS
Fossil-free future in grasp of Iggesund Mill
Pulp Paper & Logistics
log. The other half consists of the wood’s binding agent, which is mostly an energy-rich substance called lignin. We burn this in the recovery boiler and it produces enough steam and electricity to cover more than 90 per cent of our energy needs.” A fossil-free energy supply is not the only benefi t from Iggesund’s new recovery boiler, says the company. Aft er the boiler had been fi ne tuned, it was discovered that parti cle emissions from the mill, which were already low, had been halved. Sulphur emissions, which contribute to the acidifi cati on of surrounding land, have also fallen by more than 80 per cent from what were already low levels. Just over a year ago Iggesund’s
Iggesund Mill’s new recovery boiler is one of the basic
requirements for being able to operate the mill without fossil fuel
A achieved. During April, the paperboard mill
was said to have been run solely on bioenergy and also supplied almost all its own electricity needs. Iggesund Mill is one of the world’s most integrated paperboard mills with a high level
July/August 2014
vision of operati ng the Iggesund Mill in Sweden completely free of fossil fuels is closer to being
of investment. When it started up a new recovery boiler it was the mill’s biggest investment to date, at a cost of about €250 million. The boiler enabled the mill to gradually increase its annual pulp producti on from what was then 350,000 tonnes to 420,000 tonnes. “We’re getti ng close to the vision
of a fossil-free mill that we’ve lived with and that has driven our
investments for a long ti me,” says mill director Olov Winblad von Walter. “Our new recovery boiler, which came on line in spring 2012, is getti ng bett er and bett er as we fi ne tune it, and our increasing pulp producti on is also boosti ng our energy producti on. “Our sulphate process for pulp producti on means that we separate out the cellulose fi bres that comprise half the mass of a
board mill at Workington in the UK switched from fossil-sourced natural gas to using biomass with an investment of about €122 million in a biofuel boiler. Today the mill operates solely on biofuel and in additi on to covering its own energy needs it also supplies fossil-free electricity to the UK electricity grid. “One of the goals driving our investments is long-term sustainability, and the investments in both Iggesund and Workington are the result of that approach,” explains Staff an Jonsson, head of group technology at the Holmen Group, to which Iggesund belongs.
“We’re getting close to our vision of a totally bioenergy-driven and fossil-free mill,” says Iggesund mill director Olov Winblad von Walter
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