IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v36y2011i9p5440-5449.html
   My bibliography  Save this article

Energy recovery from high temperature slags

Author

Listed:
  • Barati, M.
  • Esfahani, S.
  • Utigard, T.A.

Abstract

Molten slags represent one of the largest untapped energy sources in metal manufacturing operations. The waste heat of slags amounting to ∼220 TWh/year at temperatures in the range of 1200–1600 °C, presents an opportunity to lower the energy intensity of metal production. Currently, three types of technologies are under development for utilizing the thermal energy of slags; recovery as hot air or steam, conversion to chemical energy as fuel, and thermoelectric power generation. The former route is most developed with its large scale trials demonstrating recovery efficiencies up to 65%. The latter two are emerging as the next generation methods of waste heat recovery. An evaluation of these methods shows that for both thermal and chemical energy recovery routes, a two-step process would yield a high efficiency with minimal technical risk. For thermoelectric power generation, the use of phase change materials appears to solve some of the current challenges including the mismatch between the slag temperature and operating range of thermoelectric materials.

Suggested Citation

  • Barati, M. & Esfahani, S. & Utigard, T.A., 2011. "Energy recovery from high temperature slags," Energy, Elsevier, vol. 36(9), pages 5440-5449.
  • Handle: RePEc:eee:energy:v:36:y:2011:i:9:p:5440-5449
    DOI: 10.1016/j.energy.2011.07.007
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544211004555
    Download Restriction: Full text for ScienceDirect subscribers only

    File URL: https://libkey.io/10.1016/j.energy.2011.07.007?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Bisio, G., 1997. "Energy recovery from molten slag and exploitation of the recovered energy," Energy, Elsevier, vol. 22(5), pages 501-509.
    2. Barati, Mansoor, 2010. "Energy intensity and greenhouse gases footprint of metallurgical processes: A continuous steelmaking case study," Energy, Elsevier, vol. 35(9), pages 3731-3737.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Sun, Yongqi & Shen, Hongwei & Wang, Hao & Wang, Xidong & Zhang, Zuotai, 2014. "Experimental investigation and modeling of cooling processes of high temperature slags," Energy, Elsevier, vol. 76(C), pages 761-767.
    2. Yongqi Sun & Zuotai Zhang & Lili Liu & Xidong Wang, 2015. "Heat Recovery from High Temperature Slags: A Review of Chemical Methods," Energies, MDPI, vol. 8(3), pages 1-19, March.
    3. Zhang, Huining & Dong, Jianping & Wei, Chao & Cao, Caifang & Zhang, Zuotai, 2022. "Future trend of terminal energy conservation in steelmaking plant: Integration of molten slag heat recovery-combustible gas preparation from waste plastics and CO2 emission reduction," Energy, Elsevier, vol. 239(PE).
    4. Kepplinger, D. & Templ, M. & Upadhyaya, S., 2013. "Analysis of energy intensity in manufacturing industry using mixed-effects models," Energy, Elsevier, vol. 59(C), pages 754-763.
    5. Luo, Siyi & Yi, Chuijie & Zhou, Yangmin, 2013. "Bio-oil production by pyrolysis of biomass using hot blast furnace slag," Renewable Energy, Elsevier, vol. 50(C), pages 373-377.
    6. Tan, Yu & Wang, Hong & Zhu, Xun & Lv, Yi-Wen & Ding, Yu-Dong & Liao, Qiang, 2020. "Film fragmentation mode: The most suitable way for centrifugal granulation of large flow rate molten blast slag towards high-efficiency waste heat recovery for industrialization," Applied Energy, Elsevier, vol. 276(C).
    7. Kirschen, Marcus & Badr, Karim & Pfeifer, Herbert, 2011. "Influence of direct reduced iron on the energy balance of the electric arc furnace in steel industry," Energy, Elsevier, vol. 36(10), pages 6146-6155.
    8. Bisio, G & Rubatto, G & Martini, R, 2000. "Heat transfer, energy saving and pollution control in UHP electric-arc furnaces," Energy, Elsevier, vol. 25(11), pages 1047-1066.
    9. Zhang, Hui & Wang, Hong & Zhu, Xun & Qiu, Yong-Jun & Li, Kai & Chen, Rong & Liao, Qiang, 2013. "A review of waste heat recovery technologies towards molten slag in steel industry," Applied Energy, Elsevier, vol. 112(C), pages 956-966.
    10. Mariusz Tańczuk & Maciej Masiukiewicz & Stanisław Anweiler & Robert Junga, 2018. "Technical Aspects and Energy Effects of Waste Heat Recovery from District Heating Boiler Slag," Energies, MDPI, vol. 11(4), pages 1-19, March.
    11. Julian Suer & Marzia Traverso & Nils Jäger, 2022. "Carbon Footprint Assessment of Hydrogen and Steel," Energies, MDPI, vol. 15(24), pages 1-20, December.
    12. Wang, Hong & Wu, Jun-Jun & Zhu, Xun & Liao, Qiang & Zhao, Liang, 2016. "Energy–environment–economy evaluations of commercial scale systems for blast furnace slag treatment: Dry slag granulation vs. water quenching," Applied Energy, Elsevier, vol. 171(C), pages 314-324.
    13. Julian Suer & Marzia Traverso & Nils Jäger, 2022. "Review of Life Cycle Assessments for Steel and Environmental Analysis of Future Steel Production Scenarios," Sustainability, MDPI, vol. 14(21), pages 1-22, October.
    14. Dawei Zhao & Zuotai Zhang & Xulong Tang & Lili Liu & Xidong Wang, 2014. "Preparation of Slag Wool by Integrated Waste-Heat Recovery and Resource Recycling of Molten Blast Furnace Slags: From Fundamental to Industrial Application," Energies, MDPI, vol. 7(5), pages 1-15, May.
    15. McKenna, R.C. & Norman, J.B., 2010. "Spatial modelling of industrial heat loads and recovery potentials in the UK," Energy Policy, Elsevier, vol. 38(10), pages 5878-5891, October.
    16. Luo, Siyi & Fu, Jie & Zhou, Yangmin & Yi, Chuijie, 2017. "The production of hydrogen-rich gas by catalytic pyrolysis of biomass using waste heat from blast-furnace slag," Renewable Energy, Elsevier, vol. 101(C), pages 1030-1036.
    17. Yongqi Sun & Zuotai Zhang & Lili Liu & Xidong Wang, 2014. "Multi-Stage Control of Waste Heat Recovery from High Temperature Slags Based on Time Temperature Transformation Curves," Energies, MDPI, vol. 7(3), pages 1-12, March.
    18. Luo, Siyi & Feng, Yu, 2016. "The production of hydrogen-rich gas by wet sludge pyrolysis using waste heat from blast-furnace slag," Energy, Elsevier, vol. 113(C), pages 845-851.
    19. Ding, Jing & Wang, Yarong & Gu, Rong & Wang, Weilong & Lu, Jianfeng, 2019. "Thermochemical storage performance of methane reforming with carbon dioxide using high temperature slag," Applied Energy, Elsevier, vol. 250(C), pages 1270-1279.
    20. Shiva Noori & Gijsbert Korevaar & Rob Stikkelman & Andrea Ramírez, 2023. "Exploring the emergence of waste recovery and exchange in industrial clusters," Journal of Industrial Ecology, Yale University, vol. 27(3), pages 937-950, June.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:36:y:2011:i:9:p:5440-5449. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.