Experimental Study of Using Chlorate Inhibitor for Inhibiting Initial and Secondary Coal Oxidation
MA Li
REN Lifeng
AI Shaowu
LI Zhenbao
REN Xiaodong
Abstract：In this paper,four commonly-used inhibitors including KCl,CaCl2 ,MgCl2 and NaCl were chosen for processing the raw coal sample and the initially-oxidized coal sample in order to study the effect of the inhibitor on the initial and secondary oxidation characteristics of coal samples,and through the programmed temperature rise experiments,study was made on the influence degree of the inhibitors upon the coal spontaneous combustion in the process of the initial and secondary oxidation. The study results showed that the inhibitors had greater influence on the inhibiting rate of the initially-oxidized coal sample and greater influence on the oxygen consumption rate of the secondarily-oxidized coal sample, and they made the critical temperature of the spontaneous combustion of two coal samples to be increased greatly;the inhibitors had better inhibition effect on the initial and secondary oxidation process of coal samples, and their inhibition effect were more obvious on the initially-oxidized coal sample;and the inhibition capability of four commonly-used inhibitors to the coal samples in two oxidation process was MgCl2> CaCl2>NaCl>KCl.
Keywords：inhibitorcoal spontaneous combustioninitial oxidationsecondary oxidationoxidation characteristics
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 1-4,8 )