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Metallurgy Guru - Sustainable Metals & Green Steel
Германия
Добавлен 6 июн 2020
This channel is about 'green' metallurgy. The motivation is that metal production is the largest contributor to global warming. It stands for 40% of all industrial greenhouse gas emissions, 10% of global energy consumption, 3.2 billion tonnes of minerals mined, and several billion tonnes of by-products per year. Thus, metals must become more sustainable. A circular economy model does not work, because market demand exceeds the available scrap today by two-thirds. Even under optimal conditions, at least one-third of the metals will also in future come from primary production, creating huge emissions. Although the influence of metals on global warming is discussed in politics and society, the science behind it has been less addressed. This channel covers the science to tackle the grand sustainability challenges of metal production. Content examples are green steel making, sustainable aluminium, recycling, rare earth element recovery, and the design of scrap-compatible alloys.
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Green Metals and Sustainable Steel: Insights from Basic Research
#Steel is one of the most important materials. More than 1.8 billion tonnes are consumed worldwide every year but coal is needed for conventional #production and therefore #iron and #steel production is the largest single emitter of #co2 worldwide.
The importance of #steel is often underestimated. Each of us consumes about 400-500 kilograms of steel every year. If you do the experiment of simply looking around you at everything that is actually made of steel, you can see how important this material is. It starts with the sewing needle and your tools and the kitchen at home and also with the #steel that holds the house we are sitting in together. It's not just cars that are very present, of...
The importance of #steel is often underestimated. Each of us consumes about 400-500 kilograms of steel every year. If you do the experiment of simply looking around you at everything that is actually made of steel, you can see how important this material is. It starts with the sewing needle and your tools and the kitchen at home and also with the #steel that holds the house we are sitting in together. It's not just cars that are very present, of...
Просмотров: 265
Видео
A novel approch to sustainable metallurgy: A one step process from oxides to sustainable bulk alloys
Просмотров 218Месяц назад
This video introduces a novel sustainable 'green' metallurgy approach to alloy production that consolidates the traditionally separate processes of metal extraction, alloying, and thermomechanical processing into a single operation. The full open access paper can be found here: www.nature.com/articles/s41586-024-07932-w The methodology, referred to as hydrogen-based redox synthesis, proposes th...
Hydrogen based direct reduction and plasma reduction of iron ores 01
Просмотров 7734 месяца назад
Some basic science behind hydrogen based steel making. Hydrogen, plasms, pellets, kinetics and microstructure are discussed in the context of direct reduction and plasms smelting reduction.
Why is steel a hard to abate sector for carbon emissions?
Просмотров 4055 месяцев назад
The steel industry is recognized as one of the most challenging sectors to decarbonize. This movie explores reasons for this difficulty, including the fundamental reliance on carbon-based processes, technological and economic constraints, and the sector's global economic significance. The primary challenge in reducing CO2 emissions from the steel sector lies in the industry's dependence on carb...
Dierk Raabe, Lecture about some scientific aspects of sustainable steel, Royal Society, London 2024
Просмотров 5147 месяцев назад
As a researcher deeply immersed in the field of sustainable metallurgy, I am keenly aware of the significant impact that steel production has on our environment. My work, and that of many of my colleagues, seeks to redefine this industry through the lens of sustainability, aiming to do basic research that helps to drastically reduce its carbon footprint and resource consumption of this sector. ...
Why do we have to study the science behind green steel?
Просмотров 581Год назад
Why do we need basic research for the sustainability of iron and steel production? Steel is the most widely used and most important metallic material since more than 3 millennia, in terms of volume produced and application scope. It is also the most important alloy in terms of feedstock quantity, reductants consumed, greenhouse gas emitted and energy used. Steel is therefore by far the most ess...
Making Green Steel with Hydrogen Released from Ammonia
Просмотров 4,4 тыс.Год назад
Iron production is the single largest cause of global warming. Reducing iron ores with carbon generates about 8% of global carbon dioxide emissions to produce ≈1.85 billion tons of steel per year. This dramatic scenario is driving efforts to reinvent this sector through the use of renewable and carbon-free reductants and electricity. In a scientific paper published by our group in the Journal '...
Making Green Steel with Hydrogen
Просмотров 31 тыс.2 года назад
More than 1.8 billion tons of steel are produced every year, making it the most important alloy in terms of volume and impact. While steel is a sustainability enabler, through lightweight car parts, wind farms and magnets, its primary production is not. Iron is reduced from ore using carbon. This produces 2t CO2/t of steel, standing for 33% of the global CO2 emissions in manufacturing. These em...
Kelly Lecture Cambridge University 2021: Sustainable Metals for a Circular Economy
Просмотров 1,4 тыс.3 года назад
For more than five millennia metallic alloys have been serving as the backbone of civilization. Today more than 2 billion tons of metals are produced every year. The demand for some materials such as steels, aluminium and copper is expected to double or even triple by 2050. Metals require a lot of energy for their extraction, synthesis and downstream manufacturing, qualifying them as the larges...
Metallurgy Guru: Sustainable Metallurgical Science and Engineering: Materials for a Hydrogen Economy
Просмотров 4,4 тыс.4 года назад
The Role of Materials Science and Metallurgical Engineering for a Hydrogen Economy For a future hydrogen economy materials science and metallurgical engineering play key roles and need to be systematically addressed, related to topics such as fuel cells, hydrogen generation, transportation, infrastructure and storage. Fuel cells have fro instance have the potential to provide power for a very w...
Metallurgy Guru: Trailer for Sustainable Metallurgy of Aluminium - short Introduction
Просмотров 8984 года назад
This is a short trailer about a few facts related to the sustainable metallurgy of aluminium and its alloys. Aluminium is one of the fastest growing markets in the field of structural alloys. It serves in applications, where low weight and high strength are required. Aluminium is very corrosion-resistant, due to the thin and dense oxide layer formed on its surface. Its melting point is very low...
Metallurgy Guru: Trailer to Life Cycle Assessment in Metallurgy and Materials Science
Просмотров 6634 года назад
The production of metals causes about 8% of the total global energy consumption, and 30% of all industrial greenhouse gas emissions. This short trailer, teaches a few basics, about life cycle assessment of metallurgical products and processes. The lecture start with some definitions regarding life cycle assessment. The goal of life cycle assessment is to compare the full range of environmental ...
Metallurgy Guru: Sustainable Metallurgy and Green Metals - A Green Metallurgy Introduction
Просмотров 10 тыс.4 года назад
This is an introductory class about sustainable metals and metallurgy, a field that is also referred to as green metallurgy. Engineering materials and particularly metallic alloys have enabled technological progress over millenia. Metallic materials have a historic and enduring importance in our society. They have paved the path of human civilization with load-bearing applications that can be u...