改性碳酸氢钠净化HCl和HF废气的效果

D. Wysocki, A. Szymanek
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引用次数: 0

摘要

气体净化的效果取决于吸附剂的吸附性能。研究的目的是确定钠吸附剂去除气态污染物(如HCl和HF)的能力。该研究使用经过机械和热活化的小苏打,将其引入热烟气回路,类似于各种锅炉中使用的干法烟气清洗方法。在几乎所有情况下,对小苏打进行机械和热处理,可以显著降低聚对苯二甲酸乙二醇酯(PET)瓶燃烧过程中产生的废气中氯化氢和氟化氢的浓度。吸附剂的制备必须考虑材料比表面积的最佳发展,特别是在热活化期间,以防止孔隙烧结。在干湿烟气净化过程中,钠化合物用于电力工业。适当制备吸附剂可以提高降低有害物质浓度的有效性,降低投资和运营成本。从工艺优化的角度来看,所获得的结果将有助于确定干燥吸收剂注入系统的最佳操作条件,以防止在注入热烟气时吸收剂表面的孔隙堵塞。
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The effectiveness of modified sodium bicarbonate in the purification of exhaust gases from HCl and HF
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. 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. 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. 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. 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. 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.
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来源期刊
Journal of Achievements in Materials and Manufacturing Engineering
Journal of Achievements in Materials and Manufacturing Engineering Engineering-Industrial and Manufacturing Engineering
CiteScore
2.10
自引率
0.00%
发文量
15
期刊介绍: The Journal of Achievements in Materials and Manufacturing Engineering has been published by the Association for Computational Materials Science and Surface Engineering in collaboration with the World Academy of Materials and Manufacturing Engineering WAMME and the Section Metallic Materials of the Committee of Materials Science of the Polish Academy of Sciences as a monthly. It has 12 points which was received during the evaluation by the Ministry of Science and Higher Education journals and ICV 2017:100 on the ICI Journals Master list announced by the Index Copernicus. It is a continuation of "Proceedings on Achievements in Mechanical and Materials Engineering" published in 1992-2005. Scope: Materials[...] Properties[...] Methodology of Research[...] Analysis and Modelling[...] Manufacturing and Processingv Biomedical and Dental Engineering and Materials[...] Cleaner Production[...] Industrial Mangement and Organisation [...] Education and Research Trends[...]
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