Abstract

 
 
 
 The analysis of Ukrainian legal environment has been performed for solid fossil fuels production, which has shown existing of contradictories between parameters describing the accuracy of forecast to manifest the coal layers hazardous characteristics during independent of mining and does not exclude any possibility for emergency situation to occur, independent of the preventive measures full implementation. The base to determine the coal layers hazardous characteristics are: average reflectance of vitrinite, presence of some components in organic matter (С0, О0, Н0, N0), alteration of moisture and mineral impurities content. For these classificatory parameters, their quantitative assessment is available in the whole multiplicity of coals metamorphic transformation. The specific electrical resistivity logarithm and other proxy parameters may serve as additional classificatory parameters to reveal any hazardous characteristics of anthracites after grounding their using in some ranges of metamorphism series. It has been established that the existing wide range of vitrinite reflectance alteration for anthracites specifies significant alterations in the fossil fuel structure and properties. In their process of metamorphism, these peculiarities of anthracite alterations have almost not been classificatory established by their genetic and process parameters.
 
 
 
Highlights
In many cases during mining activities, working the coal layers out becomes complicated due to the hazardous characteristics of coals
The studies performed allowed to make conclusions as for possibility to create the classification of coal layer hazardous characteristics by genetic and process coal parameters:
- the metamorphic processes of coals transformations during determination of the coal layers hazardous characteristics shall be understood as different endogenous processes related to alterations in structure, properties, organic and mineral composition of the mineral deposit
Summary
In many cases during mining activities, working the coal layers out becomes complicated due to the hazardous characteristics of coals. Genetic and technological characteristics of the fossil coals play one of the key roles in the coal layers hazardous characteristics manifestation They have been formed in result of longlasting geological organic matter transformations under impact of pressure and temperature during the metamorphic processes. When developing the GOST on coals classification as per their genetic and process parameters [10], ten main parameters were used: average reflectance of vitrinite (Rо); gross calorific value for wet ash free state (QSdaf); volatile yield for dry ash free state (Vdaƒ); maximum water capacity for ash free state (Wmaxdaf); total fusainized components for clean coal (∑OK); semi-coking resin yield for dry ash free state (TSKdaf), plastic layer thickness (у), free swelling index (SI); volatile volume yield for dry ash free state (Vvdaf); and vitrinite reflectance anisotropic index (AR).
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