Ready for the green transformation
Dillinger and Saarstahl are now running on hydrogen
On 21 August 2020, the first plant in Germany for hydrogen-based steel production via the blast furnace route went into operation in Dillingen. This will enable the two companies to further reduce their CO₂ emissions and pave the way for the practical use of green hydrogen.
The new coke oven gas plant is expected to save 120,000–150,000 tonnes of CO₂ per year, thanks to the Cerabar S pressure transmitters.
Hydrogen measurement at the blast furnace
Taking responsibility for the future
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In 2019, Dillinger and Saarstahl adopted a forward-looking strategy under the motto "proactive, CO₂-free, efficient"
The challenge
The German steel industry is set to become a pioneer in working with hydrogen. The goal is 'greener', CO₂ free steel. The idea is to introduce hydrogen-rich by-product gas into the blast furnace. Put simply, this replaces carbon with hydrogen, ultimately resulting in less CO₂ being released into the air. According to the companies, this process is the first of its kind to be implemented in Germany. The steel industry is under pressure to reduce CO₂ emissions further, partly to comply with EU regulations.
Our solution
Thanks to new coke oven gas injection systems from Paul Wurth, coke oven gas is converted into a metallurgical process gas rather than being used for low-efficiency energy generation. This gas will partially replace pulverised coal and metallurgical coke as reducing agents in the blast furnace process, helping to reduce its carbon intensity. Thanks to our partnership with Endress+Hauser, the plant was equipped with their measurement technology. Cerabar S pressure sensors, Prowirl flowmeters and RMC 621 universal flow computers were used.
The solution components
200 Cerabar S pressure sensors
10 Prowirl flowmeters (vortex principle)
6 Flow and energy manager
