Macrocharacteristics and the inhibiting effect of coal spontaneous combustion with various treatment durations of ionic liquids

Xiao, Yang; Zhang, Hao; Liu, Kun-Hua; Shu, Chi‐Min

doi:10.1016/j.tca.2021.179012

Cited by 24 publications

(5 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The maximum peak temperature is the temperature corresponding to the point where the chemical reaction intensity of the sample is largest; namely, the temperature corresponding to the valley point on the DTG curve. In general, the T 0 , T f and T m of all four samples increased with heating rate owing to the thermal hysteresis effect [15,16]. It should be noted that the T 0 , T f and T m of EE matrix and sulfide ores are lower than those of EE matrix.…”

Section: Tg/dtg Of Samples With Different Heating Ratesmentioning

confidence: 87%

Kinetic Analysis of Thermal Decomposition Process of Emulsion Explosive Matrix in the Presence of Sulfide Ores

et al. 2022

View full text Add to dashboard Cite

This study aims to characterize the whole reaction process of (i) emulsion explosive matrix and sulfide ores, and (ii) ammonium nitrate and pyrite by the thermodynamics analysis method. A series of experiments were carried out at atmospheric pressure from 25 °C to 350 °C at four heating rates (3, 5, 10, and 15 K/min) and the Coats–Redfern method was applied to calculate the apparent activation energy of samples at different heating rates. The results show that the thermogravimetric (TG) curve of sulfide ores and emulsion explosive matrix can be divided into four stages: the water evaporation stage, the dynamic balance stage, the thermal decomposition stage, and the extinguishment stage. However, the thermal decomposition process of ammonium nitrate and pyrite can be divided into the dynamic balance stage, the thermal decomposition stage, and the burnout stage. The ignition temperature (T0) and maximum peak temperature (Tm) of the samples increased with the heating rate, but the shape of the TG/DTG (Derivative Thermogravimetric) curve was not affected. The results show that the reaction process of sulfide ores and emulsion explosive matrix is similar to the reaction process of pyrite and ammonium nitrate. The thermal stability of emulsion explosive matrix decreases when sulfide ores are added. By contrast, when pyrite is added, the thermal stability of the ammonium nitrate decreases more significantly.

show abstract

Section: Tg/dtg Of Samples With Different Heating Ratesmentioning

confidence: 87%

Kinetic Analysis of Thermal Decomposition Process of Emulsion Explosive Matrix in the Presence of Sulfide Ores

et al. 2022

View full text Add to dashboard Cite

show abstract

“…[91][92][93][95][96][97] Foam suppression material has a fast cooling rate and excellent sealing effect, but the inhibition time is relatively limited, and the inhibition effect on the active groups in coal is not obvious. Therefore, F I G U R E 1 2 Depolymerization principle of chlorinated imidazole-based ionic liquids for coal molecules 35 F I G U R E 1 3 Synergistic inhibition of catechin and polyethylene glycol 59…”

Section: Foam Materialsmentioning

confidence: 99%

“…For example, halogen imidazole ILS has a great dissolution effect on coal. 29,[35][36][37][38] As shown in Table 3, when the ionic liquid anion liquids is of great significance for their development and application of ionic liquids.…”

Section: Ionic Liquidmentioning

confidence: 99%

“…The ionic species of ionic liquid inhibitors determine their inhibitory effect on CSCs. For example, halogen imidazole ILS has a great dissolution effect on coal 29,35–38 . As shown in Table 3, when the ionic liquid anion is [NTf2], the wetting effect and surface activity inhibition of the [HoEtMIM] ring group on coal are better than those of [BMIm].…”

Section: Common Csc Inhibiting Materialsmentioning

confidence: 99%

“…These methods mostly involve physical barrier effects, and most of these methods have several limitations, including incomplete prevention and short action times. To improve the spontaneous combustion characteristics of coal, many scholars have developed various chemicals that inhibit inert coal and reduce the oxidation activity of coal, such as ionic liquids, 24–45 antioxidant corrosion inhibitors, 46–64 and inerting complexes 65,66 . In addition, research on green technology for controlling CSCs by microorganisms is gradually intensifying 67–75 .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Review and prospects of research on materials to prevent and extinguish mine fires

Niu

Sun

et al. 2023

Fire and Materials

View full text Add to dashboard Cite

Coal spontaneous combustion (CSC) has hindered the utilization of coal resources and the development of the global economy for centuries. At present, many materials are used for preventing and extinguishing CSC fires, and different types of materials have various sites of action. In this paper, research on CSC fire prevention and extinguishing materials is reviewed and proposed. The preparation schemes and effects of physical barrier materials, chemical inhibitors, composite materials, and other fields of fire prevention materials were discussed. The improved compounding schemes of CSC inhibiting materials were analyzed regarding the characteristics of base materials and material properties. It was found that in the field of fire prevention materials, plant extracts, hydrolyzed proteins, biomass, and other green recycling materials have gradually become the new trend in materials. The composite material has a synergistic physical barrier and chemical inhibition and has a good inhibitory effect on coal heat storage and group activation, which has become an inhibitory material that is highly concerning. CSC inhibiting technology involving microbial control has emerged and exhibits notable characteristics, including a green cycle and long action time, but its application still needs to control the coexistence of heterogeneous microorganisms and improve the environmental livability. High‐quality firefighting materials, which are used in preventing battery fires, fighting building fires, inert coatings of cotton fabric, and other fields, have potential applicational value for CSC prevention. This review aims to provide new ideas for the research of CSC fireproof materials.

show abstract

Utilizing thermokinetic and calorimetric methods to assess the impact of an initiator on the thermal hazard of diallyl phthalate

Zhou

Liu

Tang

et al. 2022

J Therm Anal Calorim

View full text Add to dashboard Cite

Macrocharacteristics and the inhibiting effect of coal spontaneous combustion with various treatment durations of ionic liquids

Cited by 24 publications

References 41 publications

Kinetic Analysis of Thermal Decomposition Process of Emulsion Explosive Matrix in the Presence of Sulfide Ores

Kinetic Analysis of Thermal Decomposition Process of Emulsion Explosive Matrix in the Presence of Sulfide Ores

Review and prospects of research on materials to prevent and extinguish mine fires

Utilizing thermokinetic and calorimetric methods to assess the impact of an initiator on the thermal hazard of diallyl phthalate

Contact Info

Product

Resources

About