Journal Article10.1016/J.FUEL.2019.115901
Room temperature oxidation of active sites in coal under multi-factor conditions and corresponding reaction mechanism
65
TL;DR: In this article, the authors investigated the room temperature oxidation of the active sites in coal by varying multiple experimental conditions (e.g., pyrolysis temperature, pyroxidation duration, oxygen concentration, and pyroxoxidation times), and corresponding infrared spectroscopy experiments were carried out.
read more
About: This article is published in Fuel. The article was published on 15 Nov 2019. The article focuses on the topics: Coal & Limiting oxygen concentration.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Oxidative kinetic characteristics of dried soaked coal and its related spontaneous combustion mechanism
TL;DR: In this paper, a long-term water-immersed coal sample for nearly seven years was selected, and low-temperature oxidation and crossing point temperature tests were first analyzed, which indicated that water immersed coal was more prone to oxidation and spontaneous combustion.
100
Recent progress and perspective on thermal-kinetic, heat and mass transportation of coal spontaneous combustion hazard
TL;DR: A comprehensive review of coal spontaneous combustion (CSC) hazard can be found in this paper, where the authors conduct a comprehensive review on recent relevant work, aiming at analyzing the status and offering a certain reference for subsequent research endeavors for mechanism illumination and development of advanced fire management technology.
93
Comparative analysis of exothermic behaviour of fresh and weathered coal during low-temperature oxidation
TL;DR: In this paper, the exothermic behavior of weathered coal on low-temperature oxidation was investigated in fresh and Weathered coal during spontaneous combustion using the laser flash technique.
79
Inhibitory effect and mechanism of l-ascorbic acid combined with tea polyphenols on coal spontaneous combustion
TL;DR: In this paper, the inhibitory effects of compound antioxidants ( l -ascorbic acid (VC) and tea polyphenols (TP)) on coal oxidation were investigated by temperature-programmed experiments.
78
Secondary oxidation of crushed coal based on free radicals and active groups
Qin Xu,Shengqiang Yang,Wenming Yang,Tang Zongqing,Xincheng Hu,Wanxin Song,Buzhuang Zhou,Yang Kai +7 more
TL;DR: In this article, the secondary oxidation of active structures on the coal surface was studied by combining the theories of free radicals and functional groups, and the results showed that secondary oxidation had a stronger effect on the reactivity of high-rank coal.
59
References
Coal oxidation at low temperatures: oxygen consumption, oxidation products, reaction mechanism and kinetic modelling
TL;DR: In this article, the authors focus on the chemical reactions occurring during low-temperature oxidation of coal and develop a kinetic model to predict the self-heating and gas emission in coal seams.
616
Experimental studies of spontaneous combustion and anaerobic cooling of coal
TL;DR: In this paper, a 15-t experimental furnace was constructed, and large-scale spontaneous combustion tests were conducted, and the variations in temperature, gas ratios, oxygen consumption rate, and heat intensity were studied.
336
Low-Rank Coal Drying Technologies—Current Status and New Developments
TL;DR: In this article, the relative merits and limitations of various drying technologies and the current state of their development are presented, and an overview of the diverse processes used for low-rank coal drying is provided.
290
Reaction pathway of coal oxidation at low temperatures: a model of cyclic chain reactions and kinetic characteristics
TL;DR: In this article, a series of cyclic chain reactions is presented to describe the oxidation mechanism during coal spontaneous combustion using quantum chemistry calculations, and three interactive modes of active orbitals and detailed reaction sequences of coal oxidation are proposed.
287
Application of XPS to coal characterization
David L. Perry,Alan Grint +1 more
TL;DR: In this article, the use of X-ray photoelectron spectroscopy to probe the chemistry of coal surfaces is reviewed and its application to the functional group composition of bulk coals is discussed.
203