通过气候中立的等离子减少,从红色泥制成的绿色钢
Matic Jovičević-Klug1, Isnaldi R Souza Filho2, Hauke Springer1,3
1Max-Planck-Institut für Eisenforschung, Düsseldorf, Germany.
Nature
|January 24, 2024
概括
红泥是一种危险的生产废物,可以转化为绿色钢铁生产的可持续原料. 这种创新过程利用等离子减排来减轻钢铁制造业的排放.
科学领域:
- 材料科学
- 环境工程
- 金工程
背景情况:
- 红泥是生产的主要危险废物,全球积累了40亿.
- 红泥的年产量达到了1.8亿,
研究的目的:
- 提出一种将红泥转化为铁制造可持续原料的方法.
- 减轻与钢铁生产相关的二氧化碳排放.
主要方法:
- 基于无化石等离子减少红色泥.
- 快速的液态降解,化学分离和密度/粘度驱动的分离.
主要成果:
- 将红泥成功转化为绿色钢铁生产的有价值原料.
- 基础化学反应,pH中和相变的演示.
- 建立一个可持续的有毒废物处理方法.
结论:
- 红色泥土可以作为绿色钢铁的原料,减少钢铁的碳足迹.
- 等离子减少方法为废物处理和减排提供了快速,简单和可持续的方法.
相关概念视频
Bioremediation
18.4K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.4K
Steel Manufacturing
469
Steel manufacturing is a multi-stage process that begins by smelting iron ore into cast iron in a blast furnace. This initial stage involves layering iron ore with coke, a type of fuel, and crushed limestone within the furnace. The coke is ignited with a high volume of air, leading to the creation of carbon monoxide, which acts to reduce the iron ore to pure iron.
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
469
Electrolysis
26.4K
In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
26.4K


