Substantiating the operating parameters for an underground gas generator as a basic segment of the mining energy-chemical complex

Abstract

This paper presents the main aspects of changing the coal mining technology based on the introduction of underground coal gasification technology for the mining-geological conditions of the occurrence of State Enterprise “Lvivvuhillia” coal seams on the example of “Chervonohradska” mine. When conducting analytical studies using the “Material-heat balance of underground coal gasification” software, predictive quantitative-qualitative indicators of the injected blast mixture and gasification products have been determined depending on the structure and elemental composition of the coal seam, host rocks, water saturation of the seam, and water inflow into the gasification channel. The heat energy loss of an underground gas generator during the gasification of thin and ultra-thin coal seams has been revealed. The heat and energy capacity of the underground gas generator has been determined depending on the type of supply of the injected blast mixture to the combustion face “mirror” and the performance indicators of the gas generator segment within the mining energy-chemical complex taking into account the quantitative-qualitative indicators of generator gas and liquid chemical raw material of the condensate.

Hydrogen Storage and Combustion for Blackout Protection of Mine Water Pumping Stations

“…With a possible change in market conditions, one should not count on a qualitative change in the obtained parameters. Therefore, the analysis carried out in the future can be a reference for investment decisions [18,19]. However, this decision should be made based on a number of different factors such as economic, technical, utility, environmental, etc.…”

“…One of the company's goals is to reduce the budget for statutory activities. This goal is accompanied by efforts to reduce the negative impact on the environment and to ensure a fair transformation of mining regions [18,19]. Mine water pumping stations have the greatest impact on the environment.…”