Steel mill slags energy potential: the case of the steel factory of Arcelor-Mittal in Asturias (Spain)

Álvarez, Eduardo Álvarez; Trashorras, Antonio; Cuesta, José Manuel Suárez; Bernat, Jorge Xiberta

doi:10.1007/s10098-012-0455-8

Cited by 9 publications

(4 citation statements)

References 5 publications

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“…7) Various processes have been developed for recovery of sensible heat from slag. In sensible heat recovery from blast furnace slag, the air granulation method, 8,9) rotating drum granulation method, 10) and stirring granulation method 11) were examined with practical scale equipment.…”

Section: Introductionmentioning

confidence: 99%

Development of Continuous Steelmaking Slag Solidification Process Suitable for Sensible Heat Recovery

Tobo¹,

Ta²,

Kuwayama³

et al. 2015

ISIJ Int.

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The COURSE50 project aims at developing technologies to reduce CO2 emissions from steel works by approximately 30% in Japan. In order to supply the energy required to separate CO2, a technology for recovering sensible heat from steelmaking slag is being developed as one theme of COURSE50. A twin roll type continuous slag solidification process to obtain a shape suitable for sensible heat recovery was investigated.Sheet-like slag was shaped to a thickness of about 7 mm in a twin roll pilot-scale experiment. The slag thickness depended on the adhesion of the molten slag rather than the thickness of the solidified slag on the roll. The slag condition suitable for the twin roll method was identified as a liquid phase ratio of 60% or more. Based on a laboratory-scale experiment and heat transfer calculations, a combination process using the twin roll method and a countercurrent flow packed bed is expected to achieve a heat recovery ratio of 30% or more from sheet-like slag.

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Section: Introductionmentioning

confidence: 99%

Development of Continuous Steelmaking Slag Solidification Process Suitable for Sensible Heat Recovery

Tobo¹,

Ta²,

Kuwayama³

et al. 2015

ISIJ Int.

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“…Alvarez et al [52] conducted a study at two steel manufacturing factories in Asturias, Spain, using a heat-recuperation process based on a steam Rankine cycle. There were two blast furnaces in the factories, and slag production accounted for almost 80% of the byproducts.…”

Section: Case Studies Of Whr Technologiesmentioning

confidence: 99%

Waste Heat Recovery Technologies Revisited with Emphasis on New Solutions, Including Heat Pipes, and Case Studies

et al. 2022

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Industrial processes are characterized by energy losses, such as heat streams rejected to the environment in the form of exhaust gases or effluents occurring at different temperature levels. Hence, waste heat recovery (WHR) has been a challenge for industries, as it can lead to energy savings, higher energy efficiency, and sustainability. As a consequence, WHR methods and technologies have been used extensively in the European Union (EU) (and worldwide for that matter). The current paper revisits and reviews conventional WHR technologies, their use in all types of industry, and their limitations. Special attention is given to alternative “new” technologies, which are discussed for parameters such as projected energy and cost savings. Finally, an extended review of case studies regarding applications of WHR technologies is presented. The information presented here can also be used to determine target energy performance, as well as capital and installation costs, for increasing the attractiveness of WHR technologies, leading to the widespread adoption by industry.

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“…According to Alvarez et al [16], about 10% of slag is produced per ton of steel. In 2004, the European steel industry generated around 15 million tons of slag [17] while in 2010, the slag production raised up to 21.8 million tons [18].…”

Section: Introductionmentioning

confidence: 99%

Thermophysical characterization of a by-product from the steel industry to be used as a sustainable and low-cost thermal energy storage material

Ortega‐Fernández

Calvet

Gil

et al. 2015

Energy

130

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Steel mill slags energy potential: the case of the steel factory of Arcelor-Mittal in Asturias (Spain)

Cited by 9 publications

References 5 publications

Development of Continuous Steelmaking Slag Solidification Process Suitable for Sensible Heat Recovery

Development of Continuous Steelmaking Slag Solidification Process Suitable for Sensible Heat Recovery

Waste Heat Recovery Technologies Revisited with Emphasis on New Solutions, Including Heat Pipes, and Case Studies

Thermophysical characterization of a by-product from the steel industry to be used as a sustainable and low-cost thermal energy storage material

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