engleski

Study of Istrian unmineable coal utilization

There are several approaches which can be used to estimate amounts of methane that could be extracted from the coal beds. Several selected sites in Labin basin were observed in order to decide if further researches are significant. Data on the composition of coal, the depths and thicknesses of coal layers were collected to assess methane content in coal by using the Langmuir isotherm. Detailed literature investigation was conducted with the objective to determine the best method of calculations with the scarce useful data that is available from the old coal mining reports. Curves of sorption were made and evaluation of the quality of each assessment as well. The fact that some of the largest CO2 point sources in Croatia are in Istria (power plants near Plomin) was the argument for consideration of CO2 injection. By comparing the sorption of pure CH4 and sorption of CO2, in order to maintain the pressure in a coal bed it was concluded that CO2 injection could be suitable option for coal bed methane recovery.

CCS; coal bed methane; enhanced methane recovery; Labin basin

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