A new concept for using oxy-fuel burners and oxygen lances to optimize electric arc furnace operation

Adolph, A.; Paul, G.; Klein, Karl; Lepoutre, E.; Vuillermoz, J.C.; Devaux, M.

doi:10.1051/metal/199087010047

Cited by 6 publications

(1 citation statement)

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“…Based on the costs of installing oxygen lances the investments are estimated at approximately lOS/tonne capacity (Jones, 1997b). Foamy slag practice may also increase productivity through reduced tap-to-tap times, which is equivalent to a n estimated cost saving of 1.8$/tonne steel (derived from Adolph et al,1990). …”

Section: Secondary Steel Making -Electric Arc Furnace (Eaf)mentioning

confidence: 99%

Energy efficiency and carbon dioxide emissions reduction opportunities in the US iron and steel sector

Worrell

Price

Martin

2001

Energy

259

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This paper presents an in-depth analysis of the U.S. iron and steel industry, identifying cost-effective energy and carbon dioxide emissions savings that can be achieved both today and in the near future. First we discuss trends and make international energy efficiency comparisons for this industry at the aggregate level (Standard Industrial Classification 331 and 332), which includes blast furnaces and steel mills (SIC 3312), electrometalurgical products (SIC 3313), and gray and ductile iron foundries (SIC 3321). Then we focus on a smaller portion of the industry, blast furnaces and steel mills (SIC 3312), for a detailed analysis of energy use and carbon dioxide emissions by process, specific energy efficiency technologies and measures to reduce energy use and carbon dioxide emissions, and the energy efficiency and carbon dioxide emissions reduction potential for steelmaking in the U.S. Reviewing the industry as a whole, we found that U.S. steel plants are relatively old and production has fluctuated dramatically in the recent past. Metallurgical coal is still the primary fuel for the sector but gas and electricity use has been increasing. Between 1958 and 1994, physical energy intensity for iron and steelmaking (SIC 331, 332) dropped 27%, from 35.6 Gllt to 25.9 Gllt, while carbon dioxide intensity (carbon dioxide emissions expressed in tonnes of carbon per tonne of steel) dropped 39%, from 0.82 tClt to 0.50 tC/t. Compared to other large steel producers, the U.S. still tends to have higher energy intensities and has a large technical potential to achieve best practice levels of energy use for steel production. In our detailed analysis of the U.S. iron and steel sector (SIC 3312), we examined 48 specific energy efficiency technologies and measures and estimated energy savings, carbon dioxide emissions reductions, investment costs, and operation and maintenance costs for each of these measures. Based on this information, we constructed an energy conservation supply curve for U.S. iron and steelmaking which found a total cost-effective reduction potential of 3.8 Gllt, equivalent to an achievable energy savings of 18% of 1994 U.S. iron and steel energy use and a roughly equivalent savings (19%) of 1994 U.S. iron and steel carbon dioxide emissions.iii iv

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Section: Secondary Steel Making -Electric Arc Furnace (Eaf)mentioning

confidence: 99%

Energy efficiency and carbon dioxide emissions reduction opportunities in the US iron and steel sector

Worrell

Price

Martin

2001

Energy

259

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Inclusions in Stainless Steels − A Review

Park

Kang

2017

steel research int.

138

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Due to its superior features compared to plain steel products, stainless steel has been widely used for various applications, since it is commercialized in the beginning of the 1900's. Since stainless steel is characterized by high chromium (and nickel) content, stainless steelmaking processes have been developed differently to those of ordinary steelmaking. However, like plain carbon steels, non-metallic inclusions significantly influence the quality of stainless steel products. In order to gain a better understanding of the impact of inclusions on the characteristics of stainless steel products, information from a large amount of previous research on non-metallic inclusions in stainless steel is reviewed. As expected, non-metallic inclusions are a probable cause of pitting corrosion, as well as crack initiation and growth. The formation and origin of inclusions during the steelmaking and continuous casting processes are also discussed based on a number of relevant studies.[ Ã ] Prof.

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Burners

Conejo

2024

Electric Arc Furnace: Methods to Decrease Energy Consumption

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A new concept for using oxy-fuel burners and oxygen lances to optimize electric arc furnace operation

Cited by 6 publications

References 0 publications

Energy efficiency and carbon dioxide emissions reduction opportunities in the US iron and steel sector

Energy efficiency and carbon dioxide emissions reduction opportunities in the US iron and steel sector

Inclusions in Stainless Steels − A Review

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