Fringe Friday: Making Steel “Green”
Source: Engineering & Technology
Sometimes our editors find items that are not exactly “heat treat” but do deal with interesting developments in one of our key markets: aerospace, automotive, medical, energy, or general manufacturing. To celebrate getting to the “fringe” of the weekend, Heat Treat Today presents today’s Heat Treat Fringe Friday best of the web article reviewing why and how the steel industry is contending with hydrogen as a “green” solution to CO2 pollution.
The heat treat industry is bustling with visions of using hydrogen as the heating gas for combustion burners; in fact, you can watch the debate unfold as to it’s potential, promise, and application in this Heat Treat Radio episode here. But Thomas Wingens of WINGENS International Industry Consultancy told us that much of the hype is really coming from the steel industry: the potential to replace the coke in blast furnace productions with hydrogen. This would decrease a lot of CO2 emissions. In a previous Heat Treat Fringe Friday, we shared the world’s first “fossil-free” steel delivery. This time, read how other steel producers are responding to the pressures to go green.
[blockquote author=”” style=”1″]Around 71 per cent of steel produced today comes from an iron-ore-based method. This typically uses a blast furnace at temperatures of around 1,500°C in which carbon, usually coal, is used to remove oxygen and impurities from the ore to make pig iron. The latter is then turned into steel via a basic oxygen furnace whereby oxygen is blown onto the liquid iron to burn unwanted elements.[/blockquote]
Read more at: “Gearing up for green steel: how the sector plans to decarbonise”
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