Preparation of CO2-Adsorbing Fire-Extinguishing Gel and Study on Inhibition of Coal Spontaneous Combustion
Jianguo Wang, Zhenzhen Zhang, Conghui Li
TL;DR
A new fire-extinguishing gel was developed that can adsorb CO2 and inhibit coal spontaneous combustion, offering a low-carbon solution for mine fire prevention.
Contribution
A composite gel with CO2 adsorption and flame-retardant properties was developed for mine fire prevention.
Findings
The optimal gel formulation is 14% PVA, 7% PEI, and 5.5% PAC.
The gel reduces CO release by 25.97% and increases activation energy by 14.96%.
The gel maintains over 76% CO2 adsorption efficiency after five cycles.
Abstract
Spontaneous coal combustion accounts for more than 90% of mine fires, and at the same time, the ‘dual carbon’ strategy requires fire prevention and extinguishing materials to have both low-carbon and environmentally friendly functions. To meet on-site application needs, a composite gel with fast injection, flame retardant, and CO2 adsorption functions was developed. PVA-PEI-PAC materials were selected as the gel raw materials, and an orthogonal test with three factors and three levels was used to optimize the gelation time parameters to identify the optimal formulation. The microstructure of the gel, CO2 adsorption performance, as well as its inhibition rate of CO, a marker gas of coal spontaneous combustion, and its effect on activation energy were systematically characterized through SEM, isothermal/temperature-programmed/cyclic adsorption experiments, and temperature-programmed gas…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Figure 17
Figure 18
Figure 19Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsCarbon Dioxide Capture Technologies · Coal Properties and Utilization · Industrial Gas Emission Control