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Novel PFA-Based Inorganic Three-Phase Foam for Inhibiting Coal Spontaneous Combustion
[Image: see text] Fire accidents caused by coal spontaneous combustion usually lead to a large loss of coal resources and casualties. Not only that, the greenhouse effect is polluted while the environment is polluted. At present, the commonly used fire-extinguishing materials such as water, inhibito...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10339404/ https://www.ncbi.nlm.nih.gov/pubmed/37457455 http://dx.doi.org/10.1021/acsomega.3c02881 |
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author | Chen, Jian Jia, Baoshan Fu, Shuoqin Wen, Ying Liang, Yuntao Tian, Fuchao |
author_facet | Chen, Jian Jia, Baoshan Fu, Shuoqin Wen, Ying Liang, Yuntao Tian, Fuchao |
author_sort | Chen, Jian |
collection | PubMed |
description | [Image: see text] Fire accidents caused by coal spontaneous combustion usually lead to a large loss of coal resources and casualties. Not only that, the greenhouse effect is polluted while the environment is polluted. At present, the commonly used fire-extinguishing materials such as water, inhibitors, and organic foams have the disadvantages of poor stability and short fire-extinguishing cycles. It is difficult to effectively suppress coal spontaneous combustion and quickly extinguish the fire for a long time. To suppress the spontaneous combustion of coal, the research team proposed an inorganic three-phase foam with a high foam expansion rate, good cohesiveness, and excellent stability. In the formulation, pulverized fly ash (PFA) is used as the matrix, sodium dodecyl benzene sulfonate (SDBS) and α-olefin sulfonate (AOS) are used as foaming agents, curdlan is used as the foam stabilizer, and sodium silicate is the binder. The compound foaming agent with the best performance is optimized, through the two-group compounding test. The composite foaming agent’s optimal compound ratio is SDBS/AOS (3:2). The optimal ratio of inorganic three-phase foam (ITPF) components was obtained through the control variable method experiment. The water–cement ratio is 5:1, the composite foaming agent is 0.2%, the curdlan is 0.5%, and the sodium silicate is 1.6%. In addition, it has been determined by experiments that ITPF has the strongest foaming ability when the pH value is 9 and the temperature is 60 °C. The fire-extinguishing performance of the new material ITPF was investigated by thermogravimetry and coal spontaneous combustion tendency test. It has been observed that the new material has the effect of cooling down and isolating coal from contact with oxygen. The results show that the new material ITPF has the potential to prevent coal spontaneous combustion. |
format | Online Article Text |
id | pubmed-10339404 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-103394042023-07-14 Novel PFA-Based Inorganic Three-Phase Foam for Inhibiting Coal Spontaneous Combustion Chen, Jian Jia, Baoshan Fu, Shuoqin Wen, Ying Liang, Yuntao Tian, Fuchao ACS Omega [Image: see text] Fire accidents caused by coal spontaneous combustion usually lead to a large loss of coal resources and casualties. Not only that, the greenhouse effect is polluted while the environment is polluted. At present, the commonly used fire-extinguishing materials such as water, inhibitors, and organic foams have the disadvantages of poor stability and short fire-extinguishing cycles. It is difficult to effectively suppress coal spontaneous combustion and quickly extinguish the fire for a long time. To suppress the spontaneous combustion of coal, the research team proposed an inorganic three-phase foam with a high foam expansion rate, good cohesiveness, and excellent stability. In the formulation, pulverized fly ash (PFA) is used as the matrix, sodium dodecyl benzene sulfonate (SDBS) and α-olefin sulfonate (AOS) are used as foaming agents, curdlan is used as the foam stabilizer, and sodium silicate is the binder. The compound foaming agent with the best performance is optimized, through the two-group compounding test. The composite foaming agent’s optimal compound ratio is SDBS/AOS (3:2). The optimal ratio of inorganic three-phase foam (ITPF) components was obtained through the control variable method experiment. The water–cement ratio is 5:1, the composite foaming agent is 0.2%, the curdlan is 0.5%, and the sodium silicate is 1.6%. In addition, it has been determined by experiments that ITPF has the strongest foaming ability when the pH value is 9 and the temperature is 60 °C. The fire-extinguishing performance of the new material ITPF was investigated by thermogravimetry and coal spontaneous combustion tendency test. It has been observed that the new material has the effect of cooling down and isolating coal from contact with oxygen. The results show that the new material ITPF has the potential to prevent coal spontaneous combustion. American Chemical Society 2023-06-26 /pmc/articles/PMC10339404/ /pubmed/37457455 http://dx.doi.org/10.1021/acsomega.3c02881 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Chen, Jian Jia, Baoshan Fu, Shuoqin Wen, Ying Liang, Yuntao Tian, Fuchao Novel PFA-Based Inorganic Three-Phase Foam for Inhibiting Coal Spontaneous Combustion |
title | Novel PFA-Based
Inorganic Three-Phase Foam for Inhibiting
Coal Spontaneous Combustion |
title_full | Novel PFA-Based
Inorganic Three-Phase Foam for Inhibiting
Coal Spontaneous Combustion |
title_fullStr | Novel PFA-Based
Inorganic Three-Phase Foam for Inhibiting
Coal Spontaneous Combustion |
title_full_unstemmed | Novel PFA-Based
Inorganic Three-Phase Foam for Inhibiting
Coal Spontaneous Combustion |
title_short | Novel PFA-Based
Inorganic Three-Phase Foam for Inhibiting
Coal Spontaneous Combustion |
title_sort | novel pfa-based
inorganic three-phase foam for inhibiting
coal spontaneous combustion |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10339404/ https://www.ncbi.nlm.nih.gov/pubmed/37457455 http://dx.doi.org/10.1021/acsomega.3c02881 |
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