Experimental study on the effect of CaCl2 solution on the inhibition effect of coal spontaneous combustion
Year: 2024
Type: article
Abstract: In this paper, CaCl2 solution was used as an inhibitor. Raw coal was soaked in CaCl2 solution with a mass concentration of 20%, and inhibited coal samples were prepared at different temperature conditions (30 ℃, 50 ℃, 70 ℃ and 90 ℃) for different periods of time. The inhibition effect of CaCl2 solution on coal spontaneous combustion was studied through temperature programmed tests and infrared spectrum experiments. It was found that the content of surface active groups (−CH3, −CH2, −COOH, −C=O) and coal oxygen consumption rate decreased significantly with the increase of pre-inhibition temperature and pre-inhibition time. The inhibition rate and cross point temperature also increase significantly. The results show that increasing the pre-inhibition temperature and the pre-inhibition time can obviously improve the inhibitory effects on the spontaneous combustion characteristics of coal.
Author: En’si XUE
Institution: CCTEG Shenyang Research Institute
Language: English
Subfield: Ocean Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6941931124
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