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life cycle of steel slag
Comparative life cycle assessment to maximize CO2
This paper compares the environmental impact of artificial steel slag aggregates and steel slag block via life cycle assessment. The global warming Introduction Steel slag is the main source of solid waste in the steel industry [ 1 ]. It is obtained either by melting scrap with a high electric current in an Comprehensive Analysis of Steel Slag as Aggregate for Road
احصل على السعرLife Cycle Assessment of Internal Recycling Options of
The internal recycling process of steel slag can save much primary raw materials, e. g. iron ore, limestone, and raw coal. SIIIb only consumes 38% of limestone Life cycle assessment of melting reduction treatment for iron and steel waste slag: A case study in Tangshan, China ScienceDirect Resources, Conservation Life cycle assessment of melting reduction treatment for iron and
احصل على السعرMethodology for slag LCI calculation worldsteel
The steel industry has developed a methodology to calculate the life cycle inventory (LCI) for the slags from the steelmaking processes. It can also be used in LCA studies where Life cycle assessment to evaluate the environmental performance of new construction material from stainless steel slag SpringerLink Home The International Life cycle assessment to evaluate the environmental
احصل على السعرSteel Slag an overview ScienceDirect Topics
Steel slag is an industrial byproduct obtained from the steel manufacturing industry. It is produced in large quantities during steel-making operations that use electric arc The rapid increase in steel slag generation globally highlights the urgent need to manage the disposal or utilization processes. In addition to conventional landfill Life Cycle Assessment of Internal Recycling Options of Steel Slag in
احصل على السعرComparative life cycle assessment to maximize CO2
Steel slag can be treated as a potential material owing to the large percentage of alkaline silicate minerals contained. Herein, a comparative evaluation of environmental impacts of producing artificial cold-bonded steel slag aggregates and pure steel slag blocks was carried out using life cycle assessment method.The small steel slag (particle size <0.1 mm) is directly gone into the agglomeration process, and the steel slag powder and steel slag sand mixed with some certain additives can be used to produce construction materials. The recovered products of the raw steel slag pretreatment system are shown in Fig 2. Download : Download high Life cycle assessment of melting reduction treatment for iron and steel
احصل على السعرThe study of the feasibility of using recycled steel slag aggregate
Steel slag, as a waste by-product of steel-making procedure, mainly comprises CaO, SiO 2, Al 2 O 3, This trend is valid for asphalt samples that contain RAP or recycled slag. However, life cycle improvement was higher when the fresh aggregate was replaced with recycled slag.The life cycle assessment shows that the global warming potential of AC of steel slag is ∼96.2–24.9 kg CO 2-eq/t steel slag, which can offset the carbon emissions due to further grinding.Environmental benefit assessment of steel slag utilization and
احصل على السعرOntology Framework for Sustainability Evaluation of Cement–Steel-Slag
Steel slag has become a promising supplementary cementitious material for soft soil stabilization. However, there is a lack of research on the integrated assessment of cement–steel-slag-stabilized soft soils (SCSs) from the performance, environmental, and economic perspectives. In this study, an ontology framework for the sustainable Steel slags are the byproducts of the steel industry, and in the long term, electric arc furnaces are expected to be used increasingly for the production of steel, increasing accordingly the amount of electric arc furnace (EAF) slags produced [].There are two types of slag produced by the melting of scrap for the production of steel in an Feasibility Study and Criteria for EAF Slag Utilization in
احصل على السعرLife cycle inventory (LCI) study
Table 4: Slag recovery rates and usages..14 Table 5: Example impact categories and primary energy demand for 1 kg steel scrap ISSF International Stainless Steel Forum . LCA Life cycle assessment . LCI Life cycle inventory . LCIA Life cycle impact assessment .Since steel slag was used as solid waste, the smelting process involved in the production of steel slag was not included in the LCA framework. The construction, operation, maintenance, and end-of-life stages were not considered because of the lack of sufficiently reliable data.Towards the sustainable utilization of steel slag in asphalt
احصل على السعرComparative life cycle assessment to maximize CO2 sequestration
DOI: 10.1016/J.CONBUILDMAT.2021.123876 Corpus ID: 236291638; Comparative life cycle assessment to maximize CO2 sequestration of steel slag products @article{Li2021ComparativeLC, title={Comparative life cycle assessment to maximize CO2 sequestration of steel slag products}, author={Lufan Li and Yi Jiang and Shu-Yuan Pan Life cycle assessment of internal recycling options of steel slag in Chinese iron and steel industry J. Iron Steel Res. Int.,18 ( 2011 ),pp. 33 40,10.1016/S1006-706X(11)60087-3 View PDF View article Google ScholarCombining organizational and product life cycle ScienceDirect
احصل على السعرLife cycle assessment of concrete paving blocks using electric
Introduction. Electric arc furnace slag (EAFS) is a by-product generated in the semi-integrated steelmaking process, which uses metal scrap as the basic raw material, and for that reason has been considered the most competitive and sustainable process for steel production, representing over 40% of the steel produced worldwide (Pellegrino et Table 4: Slag recovery rates and usages Table 6: Life cycle impact assessment results of steel products .. 21 Table 7: Life cycle significant flows, phases and processes (excluding end-of-life phase) .. 34 Table 8: Sensitivity analysisLife cycle inventory (LCI) study
احصل على السعرSustainability Potential Evaluation of Concrete with
Sustainability in the construction industry refers to all resource-efficient and environmentally responsible processes throughout the life cycle of a structure. Green buildings may incorporate reused, Large amounts of steel slag (SS) and CO 2 are produced globally each year during steel production. An SS-based carbon capture and utilization (SS-CCU) process for CO 2 mineralization is suitable specifically for steel-making industries for simultaneous mitigation of CO 2 emissions and valorization of wastes. However, the SS-CCU process Research progress of steel slag-based carbon sequestration
احصل على السعرLife cycle assessment of steel production in Poland: a case study
1.1. Life cycle assessment in the steel industry. The iron and steel industry is highly energy-intensive and the production of steel is associated with significant greenhouse gas (GHG) emissions. In Poland, crude steel is produced at a rate of 8.8 million tons per year, an increase of 9.8% from that of 2010.This waste comes from the metallurgical industry of steel production. For its use, the physical, mechanical and chemical characteristics as well as the life cycle of the slag have been determined in comparison with conventional materials Determination of the Chemical, Physical and Mechanical
احصل على السعرA Review of Circular Economy Prospects for Stainless Springer
Abstract The world of stainless steel production was 52 Mt in 2019, and the annual amount of slags including electric furnace, AOD converter, ladle, and casting tundish, was estimated at 15–17 Mt. Nowadays, only a minor fraction of slags from stainless steel production is utilized and a major part goes to landfilling. These slags contain high The studied steel slag was characterised using X-ray fluorescence spectrometry to determine the chemical composition, while X-ray diffraction technique “Life Cycle Engineering approach to develop a novel EU-harmonized sustainability certification system for cost-effective, safer and greener. Recommended articles.Evaluation of the steel slag incorporation as coarse aggregate for
احصل على السعرLife cycle assessment of upcycling waste slag via CO
The life cycle impact assessment was calculated based on the different carbonation durations with corresponding CO 2 uptake Utilization of fine recycled aggregates in concrete with fly ash and steel slag. Construct. Build. Mater., 50 (2014), pp. 154-161, 10.1016/j.conbuildmat.2013.09.037.A novel system was proposed to realize the high value-added utilization of blast furnace slag. In this study, a comprehensive analysis concerning energy consumption, environmental impact and economic cost of the system was conducted based on the perspective of life cycle. Considering the serious situation of global warming, CO2 Life cycle assessment of a novel blast furnace slag utilization system
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