Description:
In the long run, Vale expects that in the future it will be able to produce more than 50 million tons of green briquettes each year. By using this technology, it will be possible to reduce 6 million tons of carbon dioxide emissions each year.
Title: Vale develops “green briquetting” products
Keyword: green briquetting , Environmental protection，carbon dioxide emissions
Recently, Vale announced that it has developed a new product called “green briquette” that has taken nearly 20 years. It is made by briquetting iron ore and sand from processed tailings. Will not crack under the high temperature state.
Because this product enables steel mills to reduce their dependence on the sintering process, it is expected to reduce greenhouse gas emissions generated during steel production by 10%.
It is reported that the sintering process requires a large amount of coal to heat the raw materials to 1,300 degrees Celsius, while the “green briquettes” are produced through a cold pressing process. There is no need to burn during the process and only need to be dried between 200 degrees Celsius and 250 degrees Celsius, so it consumes less energy. . The product also reduces the emissions of particulate matter, sulfur dioxide, nitrogen oxides and other gases, and does not require water in the production process.
Vale said that this product is one of the most revolutionary iron ore products that Vale has ever launched, and it is the result of the company’s massive investment in research and innovation. Before the 1960s, the company’s main product had been lump ore with high iron content. Since then, with the decline in lump mining volume, the company established the first pellet plant in Brazil, enabling the use of pellet concentrates.
The green briquetting products will be produced at the No. 1 and No. 2 pelletizing plants in the Tubarao plant in Vitoria, Espirito Santo, Brazil, and the Davarren plant in Minas Gerais, Tubarao. No. 1 and No. 2 pelletizing plants are undergoing renovations for this purpose, and a new plant is being built in the Davarren Comprehensive Operation Area for this purpose. The initial annual production capacity of the three plants is about 7 million tons, and they are expected to be put into operation in 2023, with a total investment of US$185 million. In the long run, Vale expects that in the future it will be able to produce more than 50 million tons of green briquettes each year. By using this technology, it will be possible to reduce 6 million tons of carbon dioxide emissions each year. At present, 98% of Vale’s carbon emissions are related to its supplier chain and customer chain. Vale’s carbon emission reduction target By 2050, Vale will achieve direct and indirect net zero emissions (Scope 1 and Scope 2). To this end, the company plans to invest 4 billion to 6 billion US dollars by 2030 to reduce carbon emissions by 33%, and the remaining emissions will be neutralized through a compensation mechanism. As part of Vale’s net-zero emission strategy, its Scope 3 carbon emissions target is to reduce by 15% by 2035, equivalent to 90 million tons of carbon equivalent. To this end, the company also plans to invest 125 million-150 million US dollars to low Dry magnetic separation of high-grade iron ore can reduce the iron content to 43%
The iron ore is converted into sintered ore and pellets for blast furnace with iron content of 60%-65%, or into pellets with iron content of 65%-68%, and supplied to direct reduction iron plants. Previously, the company conducted industrial tests on this product, and the results were satisfactory, and it was believed that it could be commercialized. Vale is building a 1.5 million tons/year dry magnetic separation plant, which is scheduled to be put into operation in 2023, and there are three other plants pending approval.
Content source: world metals
