Emissions of Hydrochloric Acid Vapors Generated by Pickling Process from Cold Rolling Mill of Steel Strips
Keywords:
steel strip, cold rolling, pickling, hydrochloric acid, pollution
Abstract
The most important pollutant emitted in the sector of pickling within a cold strip mill in an integrated steel mill are the hydrochloric acid vapors. This work presents the chemical reactions between the hydrochloric acid and iron oxides layers formed on the surface of the steel strip after the hot rolling process and it analyzes different areas of the pickling line as generators of acid vapors. The measurement values of hydrochloric acid vapors concentrations in the working atmosphere are correlated with the operational regimes and with occupational exposure limit values according to national legislation. Finally, solutions that can be applied to reduce emissions of hydrochloric acid vapor in the sector of analysis are presented.
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References
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[2]. ***, arcelormittal - 20-f - 20080319 - company_information, http://google.brand.edgar-online.com/.
[3]. ***, Integrated Pollution Prevention and Control (IPPC) Reference Document on Best Available Techniques in the Ferrous Metals Processing Industry, December 2001.
[4]. ***, Iron and steel production, EMEP/EEA emission inventory guidebook, 2013.
[5]. ***, EPA, Final Draft BAT Guidance Note on Best Available Techniques for Ferrous Metal Processing and the Pressing, Drawing and Stamping of Large Castings where the Production Area exceeds 500 Square Metres, September 2012.
[6]. M. Graf, R. Kawalla, Scrap development on steel hot strip rolling, La Metallurgia Italiana, No. 2/2014, p. 43-49.
[7]. R. M. Hudson, Pickling of hot rolled strip: an overview, Iron and Steelmaker (USA), 1991, 18(9), p. 31-39.
[8]. D. Wolfgang, F. Kladnig, A review of steel pickling and acid regeneration: an environmental contribution, International Journal of Materials and Product Technology, 19(6), p. 550-561, 2003.
[9]. Y. Jatuphaksamphan, N. Phinichka, K. Prapakorn, M. Supradist, Pickling Kinetics of Tertiary Oxide Scale Formed on Hot-Rolled Steel Strip, Journal of Metals, Materials and Minerals, vol. 20 No.1 p. 33-39, 2010.
[10]. ***, EPA, Emergency planning and community right-to-know act - section 313 Guidance for Reporting Hydrochloric Acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size).
[11]. ***, HG 1218/06.09.2006, Hotararea de Guvern nr. 1218 din 6 septembrie 2006 privind stabilirea cerintelor minime de securitate si sanatate in munca pentru asigurarea protectiei lucratorilor impotriva riscurilor legate de prezenta agentilor chimici.
Published
2015-12-15
How to Cite
1.
CIOCAN A. Emissions of Hydrochloric Acid Vapors Generated by Pickling Process from Cold Rolling Mill of Steel Strips. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Dec.2015 [cited 14Mar.2025];38(4):43-7. Available from: https://gup.ugal.ro/ugaljournals/index.php/mms/article/view/1291
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