Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30174
Utilization of EAF Reducing Slag from Stainless Steelmaking Process as a Sorbent for CO2

Authors: M. N. N. Hisyamudin, S. Yokoyama, M. Umemoto

Abstract:

In this study, an experimental investigation was carried out to fix CO2 into the electronic arc furnace (EAF) reducing slag from stainless steelmaking process under wet grinding. The slag was ground by the vibrating ball mill with the CO2 and pure water. The reaction behavior was monitored with constant pressure method, and the change of CO2 volume in the experimental system with grinding time was measured. It was found that the CO2 absorption occurred as soon as the grinding started. The CO2 absorption under wet grinding was significantly larger than that under dry grinding. Generally, the amount of CO2 absorption increased as the amount of water, the amount of slag, the diameter of alumina ball and the initial pressure of CO2 increased. However, the initial absorption rate was scarcely influenced by the experimental conditions except for the initial CO2 pressure. According to this research, the CO2 reacted with the CaO inside the slag to form CaCO3.

Keywords: CO2 absorption, EAF reducing slag, vibration ball mill, wet grinding.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1055246

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1230

References:


[1] Energy Information Administration of US Government, Available: http://www.eia.doe.gov/bookshelf/brochures/greenhouse/greenhouse.pdf .
[2] S. Bachu, J.J. Adams, "Sequetration of CO2 in geological media in response to climate change: Capacity of deep saline aquifers to sequester CO2 in solution", Energy Conversion and Management 44, 2003, pp. 3151-3175.
[3] C. Song, "Global challenges and strategies for control, conversion and utilization of CO2 for sustainable development involving energy, catalysis, adsorption and chemical processing", Catalysis Today 115, (2006), pp. 2-32.
[4] T.K. Flaathen, S.R. Gislason, E.H. Oelkers, A.E. Sveinbjörnsd├│ttir:, "Chemical evolution of the Mt. Hekla, Iceland, groundwaters: A natural analogue for CO2 sequestration in basaltic rocks", Applied Geochemistry, 2009, 24, pp. 463-474.
[5] M. Kakizawa, A. Yamasaki, Y. Yanagisawa, "A new CO2 disposal process via artificial weathering of calcium silicate accelerated by acetic acid", Energy 26, (2001), pp. 341-354.
[6] World Consumption of Primary Energy by Energy Type and Selected Country Groups, 1980-2006: Energy Information Administration, U.S. Department of Energy, available: http://www.eia.doe.gov/pub/ international/iealf/table18.xls.
[7] J. K. Stolaroff, G. V. Lowry, D. W. Keith, "Using CaO- and MgO-rich industrial waste streams for carbon sequestration", Energy Conversion and Management 46, 2005, pp. 687-699.
[8] S. Eloneva, S. Teir, J. Salminen, C.J. Fogelholm, R. Zevenhoven, "Fixation of CO2 by carbonating calcium derived from blast furnace slag", Energy 33, 2008, pp. 1461-1467.
[9] D. Bonenfant, L. Kharoune., S. Sauve', R. Hausler, P. Niquette, M. Mimeault, M. Kharoune, "Molecular analysis of carbon dioxide adsorption processes on steel slag oxides", International Journal of Greenhouse Gas Control 3, 2009, pp.20-28.
[10] G.M. Hernandez, R.P. Lopez, F. Renard, J.M. Nieto, L. Charlet, "Mineral sequestration of CO2 by aqueous carbonation of coal combustion fly-ash", Journal of Hazardous Materials 161, 2009, pp. 1347-1354.
[11] Iron and Steel Slag 2007 Report, Nippon Slag Association, Available: http://www.slg.jp/bib/download/fs-106.pdf.
[12] S. Yokoyama, S. Sasaki, R. Sato, M.N.N. Hisyamudin, A. Susuki, M. Umemoto, "Enhancement of reaction between CO2 and electric arc furnace oxidizing slag by grinding", Proceedings 4th International Congress on the Science and Technology of Steelmaking (ICS 2008), Gifu Japan, 2008.
[13] S. Yokoyama, R. Sato, M.N.N. Hisyamudin, M. Umemoto, "Behavior of CO2 absorption in wet grinding of electronic arc furnace reducing slag from normal steelmaking process by vibration ball mill", Tetsu-to-Hagane 95, 2009, pp. 58-65.
[14] M.N.N. Hisyamudin, S. Yokoyama, M. Kawakami, M. Umemoto, "Reaction between CO2 and CaO under dry grinding", (Accepted for publication), Powder Technology Elsevier, to be published.