ANALIZA ENERGETYKI SORPCJI CO2 NA PODSTAWIE BADAŃ WYBRANYCH PRÓBEK WĘGLA KAMIENNEGO

Abstract

ANALYSIS OF CO₂ SORPTION ENERGY BASED ON INVESTIGATIONS OF SELECTED HARD COAL SAMPLES

Abstract. The paper summarizes the results of experimental testing of carbon dioxide sorption on three coal samples. For each sample, sorption tests were done at three temperatures, in the pressure range 0-3 MPa. The values of the isosteric heat of sorption and the work of expansion and desorption were derived for the investigated sorption systems. Test data reveal that the isosteric heat for hard coals is inversely proportional to the "reserve" of volumetric work - a major parameter triggering the sudden release of gas from the coalbed. thus enabling us to assess the potential risk involved in rapid unsealing of the coalbed.