While the steel industry is one of the biggest sources of carbon emissions, the world's leading integrated steel and mining company ArcelorMittal is actively engaged in delivering carbon-neutral steel.
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The company has developed a global CO technology strategy that will enable them delivering green steel in 2020, scaling up this offering in coming years, delivering its 30% CO 2 emission target by 2030, and achieve net zero by 2050.
One of the projects ArcelorMittal is implementing is the Steelanol plant which will recycle carbon into sustainable, advanced bio-ethanol.
Steelanol transforms carbon-rich industrial waste gases into bio-ethanol for use in the transport sector by way of a novel gas-fermentation technology.
This technology provides the unique opportunity to recycle the carbon from industrial exhaust gases that would otherwise be emitted into the atmosphere.
The Steelanol plant, which will be operating at ArcelorMittal Ghent steel plant in Belgium, shall make use of a technology developed as a licensed process, whereby gases produced during the chemistry of steel production are fermented by microbes that secrete ethanol.
This plant will produce approximately 80 million litres of bioethanol annually, an equivalent for powering 100,000 cars on the road.
Sulzer Chemtec shall provide the distillation equipment, which is designed for minimizing energy consumption by using a closed loops technology to re-use key resources.
Sulzer Chemtec has appointed Howden for the supply of 4 pcs of ATEX certified ExVel® turbo fans including main drive motors, lubrication units, inlet boxes, acoustic blankets and surge monitoring system.
This equipment will be operating in deep vacuum, compressing a mixture of ethanol and water vapours. The fans will be arranged in 3-stages, with the first stage consisting of two fans running in parallel.
Howden has selected ExVel turbo fans type HAXrK some with size up to 2.4m diameter impellers using stainless steel construction (superduplex impellers and 316L housings).
The four fans total power is close to 2700 KW. ExVel® turbo fans are a unique fan technology combining exceptional flow and pressure development for challenging applications with competitive cost with an outstanding track record of long plant life and reliability.
They can be manufactured from a variety of alloys and are gas-tight thus offering complete isolation of the process gas and a robust ability to handle corrosive or hazardous gases. These factors make ExVel the first choice across the mining and metals processing industries, oil and gas and petrochemical industries, chemicals manufacturing, food processing and many other activities where long-term, round-the-clock operation is essential and unscheduled stoppages have expensive consequences.