检索结果-南通市图书馆

A review of research on spontaneous combustion of coal

在线全文

学校读者我要写书评

暂无评论

International Journal of Mining Science and Technology 2020年第3期30卷 303-311页

作者： M.Onifade B.Genc Department for Management of Science and Technology Development Ton Duc Thang UniversityHo Chi Minh CityVietnam Faculty of Applied Sciences Ton Duc Thang UniversityHo Chi Minh CityVietnam The School of Mining Engineering University of the WitwatersrandSouth Africa

Coal oxidation at low temperatures is the heat source liable for the self-heating and spontaneous combustion of coal. This phenomenon has imposed severe problems in coal related industries. Attempts to understand this phenomenon by previous researchers have provided significant progress. It is wellknown that coal oxidation at low temperatures involves oxygen consumption and formation of gaseous and solid oxidation products. This process is majorly influenced by temperature, oxidation history of coal,coal properties, particle size distribution of the coal, etc. The current understanding of the phenomenon of self-heating and spontaneous combustion of coal is discussed along with the different experimental and numerical models established to predict self-heating characteristics of coal. This paper focuses on the global position of the study carried out by academics, research institutes and industries on spontaneous combustion of coal and coal mine fires. Within this framework, the generally used spontaneous combustion techniques to predict the spontaneous combustion liability of coal were evaluated. These techniques are well-known in their usage, but no specific method has become a standard to predict the spontaneous combustion liability. Further study is still needed to indicate a number of impending issues and to obtain a more complete understanding on the phenomenon.

关键词： coalfields Experimental Numerical Propensity Self-heat Statistical method

Accumulation Dynamics Mechanism and Gas Origin of Coalbed Methane in Huainan and Huaibei coalfields,Eastern China

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2015年第A1期89卷 440-440页

作者： BAO Yuan JU Yiwen LI Qingguang Key lab of computational geodynamics College of Earth ScienceUniversity of Chinese Academy of Sciences

Coalbed gas or coalbed methane as a clean nonconventional natural gas has been caused a widely attention in the world. Although there were many countries engaging in the coalbed gas exploration and development, only f... 详细信息

关键词： COALBED methane coalfields BIOGENIC sedimentary rocks HYDROGEN isotopes CARBON isotopes CHINA

Spontaneous combustion liability of coal and coal-shale: a review of prediction methods

在线全文

学校读者我要写书评

暂无评论

International Journal of Coal Science & Technology 2019年第2期6卷 151-168页

作者： M.Onifade B.Genc The School of Mining Engineering University of the Witwatersrand P.O. WITS Johannesburg 2050 South Africa

This study presents a review of the various methods to predict the spontaneous combustion liability of coal and coal-shale. The relative propensity of coal to undergo self-heating can be established by different methods. These methods are well established in their usage, but the fact that no particular test method has become a standard to predict the spontaneous combustion liability indicates that doubt still exists as to the validity of all of them. The underlying principle of all the tests is that the more readily the coal undergoes exothermic oxidation, the more liable it is to self-heat. Comprehensive studies that centres on the international position on research being conducted by academics, different research institutes and industries on spontaneous combustion of coal and coal mine fires were evaluated. Relationships between the geochemical analysis (proximate and ultimate analysis, forms of sulphur, petrographic properties, X-ray diffraction and X-ray fluorescence) and spontaneous combustion testing methods (numerical and experimental approaches) used to predict the spontaneous combustion liability of coal were reviewed. The combination of these tests provides a better understanding of the mechanism that controls the spontaneous combustion phenomena. However, irrespective of the extensive studies that have been conducted over time, spontaneous combustion is still a major problem in the coal value chain.

关键词： coalfields Spontaneous combustion liability Macerals Numerical and geochemical analysis

Main Controlling Factors of CMB Reservoir in Northeast China:Taking Jixi Basin as An Example

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2015年第A1期89卷 465-466页

作者： XU Chengwu WANG Shihui TAN Baode WANG Youzhi LI Jia GUO Junwei Daqing oilfield exploration and Development Institute Daqing Heilongjiang 163712 Northeast Petroleum University Daqing City Heilongjiang Province 163318

1 Introduction The coal bearing basin in the east of Northeast China is many, and the little or middle fault depression of low or middle rank coal bearing basin is the main, including Jixi, Boli, Shuangyashan, Hegang, Hulin and other basins （TANG Shuheng, 2000）. Several coal bearing basins have seen well show of CBM（Tablel）. But the research of the coal bed gas system is not carried out at present.

关键词： COALBED methane MINE gases COAL basins coalfields