Linde Gases, a division of The Linde Group, last week revealed an agreement with Stena Aluminium in Sweden for the installation of its Low-temperature Oxyfuel technology.

As a leading producer of recycled aluminium, Stena Aluminium is seeking improvements for one of the alloying and casting furnaces at its Älmhult plant, with the installation scheduled for the end of February this year.

Increased productivity is just one of the many benefits that Stena is likely to gain from the Linde-proprietary Low-temperature Oxyfuel solution, as the technology will more efficiently supply the energy needed for dissolution of added alloys and superheat the melt.

Additionally, emissions of greenhouse gases, CO2 and NOX, will be reduced.

“Linde’s Low-temperature Oxyfuel technology continues to experience enthusiastic uptake within the aluminium industry,” explained Dr Joachim von Schéele, Marketing Manager for Metals and Glass at Linde.

“It allows the capability to deliver real production capacity increases, while mitigating the risk of overheating the aluminium surface.”

Linde has pioneered the use of oxyfuel technology in the aluminium industry in recent decades and has undertaken hundreds of successful installations, with von Schéele adding, “This latest implementation demonstrates our customers’ continued confidence in our technology to make them more competitive.”

Increasing throughput of existing furnaces represents a challenge for the aluminium industry. Producers need to constantly improve process yields, cut fuel consumptions and reduce emissions of gases, such as CO2 and NOX, with low-temperature Oxyfuel combustion technology uniquely designed to meet such challenges.

“Stena aims to use as few resources and have as little environmental impact as possible during the manufacturing process, so we are committed to implementing technologies that decrease fuel consumption and CO2 and NOX emissions. Linde’s Low-temperature Oxyfuel solution is a compelling technology that will help us to meet this goal,” enthused Ronny Olausson, Plant Manager at Stena Aluminium.

The technology typically boosts capacity by up to 30-50%, delivering uniform furnace temperatures to avoid hot spots, and reducing fuel consumption and emissions by up to 50%.