Dimethyl Methylphosphonate for the Suppression of Coal Spontaneous Combustion

Fusheng Wang; Meng Sun; Jiantao Wang

首页> 外文期刊>Combustion science and technology >Dimethyl Methylphosphonate for the Suppression of Coal Spontaneous Combustion

【24h】

Dimethyl Methylphosphonate for the Suppression of Coal Spontaneous Combustion

机译：Dimethyl Methylphosphonate for the Suppression of Coal Spontaneous Combustion

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

The inhibitory effect of dimethyl methylphosphonate (DMMP) on coal spontaneous combustion was investigated. The influence of DMMP on the thermal mass loss and thermal properties in the coal oxidation process was analyzed by synchronous thermal analysis. A DMMP inhibitor concentration of 10% provided the best inhibitory effect on coal oxidation. Addition of DMMP increased the coal ignition temperature by approximately 33℃, the burnout temperature by approximately 63℃, and the initial exothermal temperature by approximately 12℃. It also reduced the total heat release of the coal oxidation process by approximately 1200 J/g. Kinetic analysis of raw coal and DMMP-treated coal showed that DMMP exerted physical inhibition by blocking contact between coal and oxygen in the low-temperature oxidation stage. In the high-temperature oxidation stage, the chemical inhibition effect of DMMP was enhanced and the activation energy increased significantly (approximately 54.79 kJ/mol). Gas phase analysis indicated that DMMP could reduce oxygen consumption and CO emission during the coal oxidation process. On the basis of the above results and quantum chemical analysis, a mechanism for DMMP suppression of coal spontaneous combustion was proposed. This study provides reference data for prevention of coal spontaneous combustion and development of new inhibitors.

著录项

来源
《Combustion science and technology》 |2023年第8期|982-999|共18页
作者
Fusheng Wang; Meng Sun; Jiantao Wang;
展开▼
作者单位

College of Mining Engineering, North China University of Science and Technology, Tangshan, China, Mining Development and Safety Technology Key Lab of Hebei Province, Tangshan, China;

College of Mining Engineering, North China University of Science and Technology, Tangshan, China;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
Coal spontaneous combustion; organophosphorus flame retardant; dimethyl methylphosphonate; oxidation; inhibition;

Dimethyl Methylphosphonate for the Suppression of Coal Spontaneous Combustion

摘要

著录项

相关主题

期刊订阅