Finland-headed forest- and energy industry technology provider Valmet Oyj has announced that it will supply a waste-fired steam boiler to Lidköping Energi AB – municipality-owned energy utility in Lidköping, Sweden. With the new boiler, the company will be able to convert 130 000 tonnes of waste per annum into district heat, industrial hot water, industrial steam, and electricity, while also ensuring environmentally safe disposal of harmful residues.
The new 20 MW thermal boiler from Valmet will replace two 35-year-old boilers, and Lidköping Energi will also take other steps to increase the recovery of energy from the fuel. When all upgrades are in place, the annual production of electricity can be doubled. Increased electricity production in Lidköping will lower global greenhouse gas (GHG) emissions from electricity production based on fossil fuels.
We are very proud of the improvements we will make. We will be more cost-efficient, produce more energy and, most importantly, improve our environmental footprint. Our environmental standards are already among the very best in the world, but now, we will take another step forward. We have good experiences of Valmet’s technology, but still, for this investment, we followed a strict evaluation process to make sure that we got the best solution we could find, said Stina Bergenheim, CEO at Lidköping Energi.
Multi-fuel capabilities
Valmet will supply the entire boiler unit with auxiliary equipment, such as fuel and ash systems. The delivery includes erection, commissioning, training, and start-up, which is scheduled for 2021. The boiler will be based on Valmet’s bubbling fluidized bed (BFB) technology with Advanced Combustion Zone (ACZ) for highly efficient low-emission control.
The boiler will be able to run on a very wide fuel mix, including industrial waste, refuse-derived fuel (RDF), biomass and municipal waste. According to Valmet, there are currently 20 ACZ boilers in operation, running on a wide range of waste fuels. The latest design changes have further improved the high service friendliness and corrosion resistance of this technology.
Though undisclosed, the value of an order of this size and delivery scope is typically above EUR 10 million.
The boiler from Valmet represents proven technology that meets the EU’s Industrial Emissions Directive requirements by a wide margin. I am excited about the project and look forward to realizing it together with Lidköping Energi, said Anders Victorén, Sales and Project Manager at Valmet.
