威力彩玩法

Germany鈥檚 largest steelmaker thyssenkrupp has launched a series of tests into the use of hydrogen in a working blast furnace aimed at reducing CO2 emissions from steel production. 鈥淪teel production will play an important role in reaching our climate targets because the potential for reducing emissions is huge,鈥� said Klaus Keysberg, member of the company鈥檚 executive board. Fully employed, the use of hydrogen instead of coal at this step in the production process could lead to CO2 savings of 20 percent,聽. The steelmaker explains that in the classic blast furnace process around 300 kilograms (kg) of coke and 200 kg of pulverized coal are needed to produce a tonne of pig iron. The coal is injected as an additional reducing agent into the bottom of the blast furnace shaft through 28 so-called聽. One of these was now used to inject hydrogen instead of coal.

罢丑测蝉蝉别苍办谤耻辫辫听has set itself the target聽of cutting its greenhouse gas emissions to zero by 2050. The company emitted around聽聽in the 2017-2018 fiscal year, equal to almost three percent of聽Germany鈥檚 total emissions. It sees the use of hydrogen as the key lever for climate-neutral steel production. Following the conversion of the blast furnaces, the company plans to build large-scale direct reduction plants, which will then be operating with hydrogen-containing gases, starting in the mid-2020s, said thyssenkrupp. The sponge iron they produce will initially be melted down in the existing blast furnaces but in the long term it will be processed into crude steel in electric arc furnaces using renewable energies.