The effectiveness of modified sodium bicarbonate in the purification of exhaust gases from HCl and HF

• Autorzy: Wysocki D. , Szymanek A.

Identyfikatory

DOI

10.5604/01.3001.0016.2156

• Języki publikacji: EN

Abstrakty

EN

Purpose: The effectiveness of gas purification depends on the sorption properties of sorbents. The aim of the research was to determine the ability of sodium sorbents to remove gaseous pollutants such as HCl and HF. Design/methodology/approach: The research used baking soda subjected to mechanical and thermal activation, which was introduced into the hot flue gas circuit, similar to the dry flue gas cleaning method used in all kinds of boilers. Findings: In almost all cases, mechanical and thermal treatment of baking soda allowed for a significant improvement in the reduction of hydrogen chloride and hydrogen fluoride concentrations in the exhaust gases produced during the combustion of polyethylene terephthalate (PET) bottles. Research limitations/implications: The preparation of sorbents must consider the optimum development of the material's specific surface area, especially during thermal activation, to prevent pores from sintering. Practical implications: In wet and dry flue gas cleaning processes, sodium compounds are used in the power industry. Appropriate preparation of the sorbent allows for improving the effectiveness of reducing the concentration of harmful substances and reducing investment and operating costs. Originality/value: From the point of view of process optimisation, the results obtained will contribute to the identification of optimal operating conditions in dry sorbent injection systems to prevent the pores on the surface of the sorbent from clogging when injected into hot flue gases.

Słowa kluczowe

EN

sodium bicarbonate; removal of HCl; removal of HF; mechanical activation; thermal activation; dry sorbent injection; DSI

PL

wodorowęglan sodu; usuwanie chlorowodoru; usuwanie fluorowodoru; aktywacja mechaniczna; aktywacja termiczna; wtrysk suchych sorbentów

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2022
• Tom: Vol. 114, nr 2
• Strony: 57--66
• Opis fizyczny: Bibliogr. 17 poz., rys., tab., wykr.

Twórcy

autor

Wysocki D.

• Czestochowa University of Technology, al. Armii Krajowej 21, 42-201 Częstochowa, Poland

• https://orcid.org/0000-0002-1990-5382

autor

Szymanek A.

• Czestochowa University of Technology, al. Armii Krajowej 21, 42-201 Częstochowa, Poland

• https://orcid.org/0000-0002-4235-2368

Bibliografia

• [1] Commission Implementing Decision (EU) 2017/1442 of 31 July 2017 establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for large combustion plants (notified under document C (2017) 5225) (Text with EEA relevance).
• [2] Consolidated text: Directive 2010/75/EU of the European Parliament and of the Council of 24 November 2010 on industrial emissions (integrated pollution prevention and control) (Recast) (Text with EEA relevance).
• [3] A. Pajdak, B. Walawska, The use of modified sodium sorbents in the treatment of flue gases from SO2 and HCl from power plants and CHP plants in the light of Energy policy European Union, Polityka Energetyczna - Energy Policy Journal 19/2 (2016) 135-148 (in Polish).
• [4] A. Dal Pozzo, G. Muratori, G. Antonioni, V. Cozzani, Economic and environmental benefits by improved process control strategies in HCl removal from waste-to-energy flue gas, Waste Management 125 (2021) 303-315. DOI: https://doi.org/10.1016/j.wasman.2021.02.059
• [5] Y. Kong, J. Balland, Effective removal of HCl and SO2 with dry injection of sodium bicarbonate or trona, Proceedings of the 19 th Annual North American Waste-to-Energy Conference, Lancaster, Pennsylvania, USA, 2011, 195-199. DOI: https://doi.org/10.1115/NAWTEC19-5408
• [6] Y. Kong, M. Wood, Dry injection of sodium sorbents for air pollution control, Environmental Engineer Spring (2011) 20-23.
• [7] Soda Polska CIECH, Baking soda properties. Available from: https://ciechgroup.com/produkty/soda/
• [8] A. Pajdak, B. Walawska, A. Szymanek, The effect of structure modification of sodium compounds on the SO2 and HCl removal efficiency from fumes in the conditions of circulating fluidised bed, Chemical and Biochemical Engineering Quarterly 31/3 (2017) 261-273. DOI: https://doi.org/10.15255/CABEQ.2015.2305
• [9] J.W. Han, N. Hassoli, K.S. Lee, S.S. Park, K.D. Kim, H.T. Kim, Y.O. Park, Dry scrubbing of gaseous HCl and SO2 with hydrated lime in entrained mixing reactor, Powder Technology 393 (2021) 471-481. DOI: https://doi.org/10.1016/j.powtec.2021.05.089
• [10] A. Dal Pozzo, R. Moricone, A. Tugnoli, V. Cozzani, Experimental investigation of the reactivity of sodium bicarbonate toward hydrogen chloride and sulfur dioxide at low temperature, Industrial and Engineering Chemistry Research 58/16 (2019) 6316-6324. DOI: https://doi.org/10.1021/acs.iecr.9b00610
• [11] A. Balasubramanian, Size Reduction by grinding methods, Report, Centre for Advanced Studies in Earth Science, University of Mysore, Mysore, 2017. DOI: https://doi.org/10.13140/RG.2.2.21484.56961
• [12] S. Blaschke, Mechanical processing of minerals, Publishing House „Śląsk”, Katowice, 1984 (in Polish).
• [13] Hosakawa Alpine, Ultraplex Fine Impact Mills Types 100 UPZ - 1400 UPZ, 2014. Available from: https://www.hosokawa-alpine.pl/fileadmin/user_upload/content/Mechanische_Verfahrenstechnik/Maschinen/Feinprallmuehlen/UPZ/0031-EN-2014-05_-_Ultraplex_Fine_impact_mills_100_UPZ_-_1400_UPZ.pdf
• [14] E. Grant, H. Kalman, Experimental analysis of the performance of an impact mill, Advanced Powder Technology 13/3 (2002) 233-247. DOI: https://doi.org/10.1163/156855202320252426
• [15] M. Wołosiewicz-Głąb, D. Foszcz, S. Ogonowski, Design of the electromagnetic mill and the air stream ratio model, IFAC-PapersOnLine 50/1 (2017) 14964-14969. DOI: https://doi.org/10.1016/j.ifacol.2017.08.2554
• [16] S. Ogonowski, M. Wołosiewicz-Głąb, Z. Ogonowski, D. Foszcz, M. Pawełczyk, Comparison of wet and dry grinding in electromagnetic mill, Minerals 8/4 (2018) 138. DOI: https://doi.org/10.3390/min8040138
• [17] DX4000 FTIR Gas Analyzer Helps Study Flue Gases at Savonia University, Available from: https://www.gasmet.com/cases/dx4000-ftir-gas-analyzer-helps-study-flue-gases-at-savonia-university/

Uwagi

PL

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).