Material–energy–emission nexus in the integrated iron and steel industry

Sun, Wenqiang; Wang, Qiang; Zheng, Zhong; Cai, Jiuju

doi:10.1016/j.enconman.2020.112828

Cited by 76 publications

(19 citation statements)

References 46 publications

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“…The iron & steel manufacturing system integrates with the energy flow and material flow, each of them restricts and promotes the other one [3]. The gaseous oxygen provides energy to manufacturing processes in OUS to make reaction or processing, and the operations of OGS and OSS are guided by the consumption demand of manufacturing processes [4]. Therefore, how to make a good trade-off between the manufacturing system and the energy system is very important for modern iron & steel plants to realize sustainable manufacturing [5].…”

Section: Literature Reviewmentioning

confidence: 99%

A two-stage robust optimization approach for oxygen flexible distribution under uncertainty in iron and steel plants

Jiang¹,

Peng²,

Bogle³

2021

Preprint

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Oxygen optimal distribution is one of the most important energy management problems in the modern iron & steel industry. Normally, the supply of the energy generation system is determined by the energy demand of manufacturing processes. However, the balance between supply and demand fluctuates frequently due to the uncertainty arising in manufacturing processes. In this paper, we developed an oxygen optimal distribution model considering uncertain demands and proposed a two-stage robust optimization (TSRO) with a budget-based uncertainty set that protects the initial distribution decisions with low conservatism. The main goal of the TSRO model is to make "wait-andsee" decisions maximizing production profits and make "here-and-now" decisions minimizing operational stability and surplus/shortage penalty. To represent the uncertainty set of energy demands, we developed a Gaussian process (GP)based time series model to forecast the energy demands of continuous processes and a capacity-constrained scheduling model to generate multi-scenario energy demands of discrete processes. We carried out extensive computational studies on TSRO and its components using well-synthetic instances from historical data. The results of model validation and analysis are promising and demonstrate our approach is adapted to solve industrial cases under uncertainty.

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Section: Literature Reviewmentioning

confidence: 99%

A two-stage robust optimization approach for oxygen flexible distribution under uncertainty in iron and steel plants

Jiang¹,

Peng²,

Bogle³

2021

Preprint

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“…Based on the above analysis, steel, brick, and cement account for a large proportion of infrastructure materials, which are the primary causes of CO 2 emissions and other toxic pollutants in the mining and manufacturing processes [70][71][72]. is paper further estimates the amount of CO 2 emissions by the infrastructure construction activities of 34 cities.…”

Section: Embodied Carbon Footprintmentioning

confidence: 99%

Material Consumption and Carbon Emissions Associated with the Infrastructure Construction of 34 Cities in Northeast China

Wang

Fan

et al. 2020

Complexity

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Over the past three decades, China has experienced rapid economic growth along with a rapid increase in urbanization and living standards, leading to a boom in infrastructure demand. A large part of China’s newly constructed infrastructure is through urban construction; thus, cities have become a major source of material consumption and carbon emissions. Understanding the relationship between material consumption, carbon emissions, and the economic growth of cities is key to ensuring that the construction of infrastructure satisfies the needs for both economic development and dematerialization. In this study, we first accounted for material consumption and the carbon emissions of infrastructure construction of 34 cities in Northeast China and characterized spatial and temporal changes from 2010–2017. The material use and carbon emissions of infrastructure construction declined by 34.6% and 30.2% during this period. Specifically, material consumption decreased from 305.2 million tonnes to 199.6 million tonnes, and carbon emissions decreased from 77.7 million tonnes to 54.3 million tonnes. Furthermore, we used a decoupling indicator to evaluate the decoupling of material consumption or carbon emissions from GDP in these cities. We found that most cities have achieved the absolute decoupling of material consumption and carbon emissions from GDP over the study period. Finally, we proposed several policy recommendations for promoting the sustainable development of the infrastructure of cities. To ensure that cities realize low-carbon urbanization, policymakers need to promote modular buildings and low-emission construction materials. This paper also serves as a practical reference for the improvement of relevant materials and carbon emissions management strategies for other developing regions.

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“…In 2020, global steel production was around 1,9 billion tonnes [1,2]. Among many metallurgical routes [3,4], the integrated route is the most common for steel production. This route includes cokemaking, iron ore sintering [5], iron ore pelletizing, blast furnace (BF)-based ironmaking, and conversion to steel by the BOF.…”

Section: Introductionmentioning

confidence: 99%

Study on a Two-Phase Low-Temperature Model of the Features of Metal Tapping in Basic Oxygen Furnace

Golub

Молчанов

Koveria

et al. 2022

Acta Metall Slovaca

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The paper shows the results of a study of the influence of the cut-off method of the slag by using destructible plugs on the quantitative indicators of the redistribution of slag and metal in the steel ladle during the metal tapping operation from the converter. The laboratory setup simulates a real 160-ton industrial top-blown oxygen converter, and a steel ladle at a scale of 1:18 has been used to fulfill the study. Water was chosen as a liquid steel imitator, and machine oil was chosen for slag with parameters that ensure the similarity of physical parameters in the metal-slag system. The physical modelling of the tapping process of a two-phase converter bath in the case of a destructible plug in the tap hole compared to the tapping option without it showed a significant positive effect of the presence of the plug in the initial period from the moment the converter is tilted.

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Material–energy–emission nexus in the integrated iron and steel industry

Cited by 76 publications

References 46 publications

A two-stage robust optimization approach for oxygen flexible distribution under uncertainty in iron and steel plants

A two-stage robust optimization approach for oxygen flexible distribution under uncertainty in iron and steel plants

Material Consumption and Carbon Emissions Associated with the Infrastructure Construction of 34 Cities in Northeast China

Study on a Two-Phase Low-Temperature Model of the Features of Metal Tapping in Basic Oxygen Furnace

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