The Assessment and Reduction of Carbon Oxides Emissions at Electric Arc Furnaces – Essential Factors for Sustainable Development

Iluţiu-Varvara, Dana-Adriana; Mârza, Carmen Maria; Sas-Boca, Ioana Monica; Ceclan, Vasile

doi:10.1016/j.protcy.2015.02.057

Cited by 9 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Influence of fuel and energy sources used for secondary steel synthesis via the electric arc furnace route including the subsequent hot rolling process on the resulting CO 2 emissions. Data have been summarized from refs , , and . The diagram includes the scope 1 and the scope 2 emissions.…”

Section: Sustainability Aspects In Extractive Metallurgical Processingmentioning

confidence: 99%

The Materials Science behind Sustainable Metals and Alloys

Raabe

2023

Chem. Rev.

108

View full text Add to dashboard Cite

Production of metals stands for 40% of all industrial greenhouse gas emissions, 10% of the global energy consumption, 3.2 billion tonnes of minerals mined, and several billion tonnes of by-products every year. Therefore, metals must become more sustainable. A circular economy model does not work, because market demand exceeds the available scrap currently by about two-thirds. Even under optimal conditions, at least one-third of the metals will also in the future come from primary production, creating huge emissions. Although the influence of metals on global warming has been discussed with respect to mitigation strategies and socio-economic factors, the fundamental materials science to make the metallurgical sector more sustainable has been less addressed. This may be attributed to the fact that the field of sustainable metals describes a global challenge, but not yet a homogeneous research field. However, the sheer magnitude of this challenge and its huge environmental effects, caused by more than 2 billion tonnes of metals produced every year, make its sustainability an essential research topic not only from a technological point of view but also from a basic materials research perspective. Therefore, this paper aims to identify and discuss the most pressing scientific bottleneck questions and key mechanisms, considering metal synthesis from primary (minerals), secondary (scrap), and tertiary (re-mined) sources as well as the energy-intensive downstream processing. Focus is placed on materials science aspects, particularly on those that help reduce CO2 emissions, and less on process engineering or economy. The paper does not describe the devastating influence of metal-related greenhouse gas emissions on climate, but scientific approaches how to solve this problem, through research that can render metallurgy fossil-free. The content is considering only direct measures to metallurgical sustainability (production) and not indirect measures that materials leverage through their properties (strength, weight, longevity, functionality).

show abstract

Section: Sustainability Aspects In Extractive Metallurgical Processingmentioning

confidence: 99%

The Materials Science behind Sustainable Metals and Alloys

Raabe

2023

Chem. Rev.

108

View full text Add to dashboard Cite

show abstract

“…Also high concentration was measured at the melting area (398ppm). Iluțiu -Varvara, et al (2015), reported that the highest COx level inside the EAF occurred at the melting and at the beginning of the refining stage (EPA, 2009a). During melting and refining process, carbon is removed from the raw materials and converted to CO2, which explains the high concentration at the melting and casting areas.…”

Section: Concentration Of Nomentioning

confidence: 99%

“…Environmentally, ozone is mainly responsible for photochemical smog formation. From the point of view health effect, it causes skin, eyes, nose and throat irritation, headache, vomiting, reduce lung function, inflame and damage cells that line lungs, aggravate asthma, and may cause permanent lung damage (Iluțiu -Varvara et al, 2015).…”

Section: Concentration Of Nomentioning

confidence: 99%

Indoor Air Quality in Steel Making Industries

Al‐Zboon

Forton

2019

EMSD

View full text Add to dashboard Cite

Steel making industry is one of the major contributors to the global environmental catastrophes including climate change, photochemical smog and depletion of the ozone layer. Emissions from steel making process result in health impacts on workers and the neighboring communities. This study aimed to investigate indoor air quality in a steel making industry in Saudi Arabia. Indicative pollutants, SO2, NOx, CO, CO2, O3, PM10 and PM2.5 were measured at eight locations across the factory. The obtained results indicated that loading, melting, slag pouring and casting stages are the major sources of indoor air pollution. In comparison with the ambient air, indoor concentrations increased up to: 13.50, 9.8, 1.29, 2.7, 15.6, times for SO2, NOx, CO2, VOCs, O3, respectively. Periodical medical check, pollution control, using of uncontaminated scrap, compliance with H&S regulations, are the key factors in reducing indoor emissions and subsequently improve occupational health.

show abstract