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| Tue, 28th Apr 2020 14:54:00 |
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‘World first’ as hydrogen used to power commercial steel production |
Hydrogen has been used to power commercial steel production for the first time, replacing liquefied natural gas (LNG) as the source of high-temperature heat at a pilot project in Sweden.
Swedish steel maker Ovako's trial at its Hofors steel mill, in conjunction with hydrogen producer Linde Gas, showed that H2 had no affect on the quality of steel.4
"This is a major development for the steel industry," said Göran Nyström, executive vice-president of group marketing & technology at Ovako. "It is the first time that hydrogen has been used to heat steel in an existing production environment. Thanks to the trial, we know that hydrogen can be used simply and flexibly, with no impact on steel quality, which would mean a very large reduction in the carbon footprint."
The company said that "this historic development for the steel industry proves that carbon dioxide emissions from rolling can be eliminated provided the right financial support and infrastructure are in place".
"Given the right conditions, Ovako could therefore introduce hydrogen heating for furnaces at all its rolling mills and thereby drastically reduce its already world-leading low carbon footprint from cradle to gate."
An Ovako spokesperson tells Recharge that to begin such a roll-out, the company would "need to get funding and collaborate with the right industrial partners".
Ovako already uses electric-arc furnaces powered by renewable energy to melt scrap steel and produce its base product, but LNG to provide the heat at its rolling mills — where pre-produced steel is passed through pairs of rollers that reduce its thickness and makes the thickness uniform.
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