Work

Experimental study on the effectiveness of inhibitors affected by high-temperature coal bodies

Year: 2025

Type: article

Abstract: The efficacy of inhibitors differs significantly between laboratory and field applications, primarily due to neglecting the impact of high-temperature coal on inhibition performance. This study evaluated CaCl 2 , EDTMPA, and TBHQ on coal samples heated at 30°C, 60°C, and 90°C using programmed temperature ramping, Electron Paramagnetic Resonance (EPR), Fourier Transform Infrared (FTIR) spectroscopy, and thermogravimetric analysis. Results show that both CaCl 2 and EDTMPA exhibit enhanced inhibition at higher temperatures. Specifically, CO content for 90-CaCl 2 and 90-EDTMPA was 8.68% and 14.96% of that in untreated coal at 30°C, with oxygen consumption rates of 12.78% and 13.16%, respectively. Functional group reductions were also observed. TBHQ showed optimal performance at 60°C, with ignition points for 90-CaCl 2 , 90-EDTMPA, and 60-TBHQ delayed by 54.76°C, 19.69°C, and 12.33°C, respectively, compared to untreated coal at 30°C. These findings suggest selecting inhibitors based on coal body temperature can enhance fire prevention efficiency in mines, optimizing inhibitor use and improving mine safety.

Source: Case Studies in Thermal Engineering

DOI: 10.1016/j.csite.2025.106417

Authors: Xuefeng Wang, Yuhao Liu, Bing Lu, Ye Liu, Ling Qiao, Xun Zhang

Institutions: Taiyuan University of Technology, Liaoning Technical University

Language: English

Topic: Coal Properties and Utilization

Subfield: Ocean Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,620

Funders: National Natural Science Foundation of China, Taiyuan University of Technology