FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2488752448> ?p ?o ?g. }

• W2488752448 endingPage "64" @default.
• W2488752448 startingPage "48" @default.
• W2488752448 abstract "Recent research has demonstrated that confining stresses applied to the solid framework of coal can reduce its gas sorption capacity by several percent to perhaps several tens of percent. To evaluate the magnitude of this effect more rigorously in relation to predicting in-situ coalbed methane (CBM) content, a better understanding of the effects of stress on methane sorption by coal is needed. In this paper, a previous thermodynamic model for the effects of stress on CO2 sorption by coal is revised and applied to CH4. The revised model predicts that in-situ CBM content is indeed determined not only by the geological factors generally considered, such as coal rank, coal composition, moisture content and temperature, but also by lithostatic or confining stress, which is usually ignored. This prediction is tested by means of experiments performed on a composite cylindrical sample of Brzeszcze 364 high volatile bituminous coal subjected to 10 MPa methane pressure at a temperature of 40°C, varying the hydrostatic stress or confining pressure in the range 11-43 MPa. In these experiments, we determined if CH4 was desorbed as confining pressure was increased by subtracting the poroelastic expulsion of CH4 from the total CH4 expelled, assuming the former to equal the gas volume expelled in control experiments performed using Helium. The experimental results show that the equilibrium sorption capacity for CH4 at 10 MPa gas pressure and 11 MPa confining pressure (1 MPa Terzaghi effective stress) was 0.808 mol/kgcoal. This was reduced by at least ~ 6% by increasing the confining pressure to 43 MPa (33 MPa effective stress), confirming the validity of our model. We apply our model to predict in-situ CBM concentration as a function of coal seam depth for dry, high volatile bituminous coal, assuming a geothermal gradient of 32°C/km. The results indicate a maximum CH4 concentration of ~ 0.76 mol/kgcoal at a burial depth of ~ 900m, which is ~ 3% lower than conventional predictions. This reduction is minor but helps to explain why gas saturation is generally lower than expected from conventional sorption measurements on unconfined coal powders. More importantly, our results confirm that there is an intimate coupling between in-situ stress, strain and sorption in coal that needs to be considered in developing gas-enhanced CBM strategies." @default.
• W2488752448 created "2016-08-23" @default.
• W2488752448 creator A5010674530 @default.
• W2488752448 creator A5039853102 @default.
• W2488752448 creator A5056619151 @default.
• W2488752448 creator A5066546093 @default.
• W2488752448 date "2016-10-01" @default.
• W2488752448 modified "2023-10-18" @default.
• W2488752448 title "Effect of lithostatic stress on methane sorption by coal: Theory vs. experiment and implications for predicting in-situ coalbed methane content" @default.
• W2488752448 cites W1592594705 @default.
• W2488752448 cites W1657672397 @default.
• W2488752448 cites W1964258749 @default.
• W2488752448 cites W1980893812 @default.
• W2488752448 cites W1983840914 @default.
• W2488752448 cites W1985432098 @default.
• W2488752448 cites W1986113254 @default.
• W2488752448 cites W1992581616 @default.
• W2488752448 cites W1994384045 @default.
• W2488752448 cites W2010334621 @default.
• W2488752448 cites W2013505712 @default.
• W2488752448 cites W2019203114 @default.
• W2488752448 cites W2029268427 @default.
• W2488752448 cites W2035287379 @default.
• W2488752448 cites W2040223965 @default.
• W2488752448 cites W2042896431 @default.
• W2488752448 cites W2047175491 @default.
• W2488752448 cites W2049457092 @default.
• W2488752448 cites W2053438764 @default.
• W2488752448 cites W2055072688 @default.
• W2488752448 cites W2060521547 @default.
• W2488752448 cites W2061061537 @default.
• W2488752448 cites W2065316249 @default.
• W2488752448 cites W2067171975 @default.
• W2488752448 cites W2067772197 @default.
• W2488752448 cites W2071370971 @default.
• W2488752448 cites W2079218153 @default.
• W2488752448 cites W2080885941 @default.
• W2488752448 cites W2081910345 @default.
• W2488752448 cites W2094873601 @default.
• W2488752448 cites W2103031599 @default.
• W2488752448 cites W2113453716 @default.
• W2488752448 cites W2119102259 @default.
• W2488752448 cites W2135551690 @default.
• W2488752448 cites W2151839715 @default.
• W2488752448 cites W2161378879 @default.
• W2488752448 cites W2164522584 @default.
• W2488752448 doi "https://doi.org/10.1016/j.coal.2016.07.012" @default.
• W2488752448 hasPublicationYear "2016" @default.
• W2488752448 type Work @default.
• W2488752448 sameAs 2488752448 @default.
• W2488752448 citedByCount "23" @default.
• W2488752448 countsByYear W24887524482017 @default.
• W2488752448 countsByYear W24887524482018 @default.
• W2488752448 countsByYear W24887524482019 @default.
• W2488752448 countsByYear W24887524482020 @default.
• W2488752448 countsByYear W24887524482021 @default.
• W2488752448 countsByYear W24887524482022 @default.
• W2488752448 countsByYear W24887524482023 @default.
• W2488752448 crossrefType "journal-article" @default.
• W2488752448 hasAuthorship W2488752448A5010674530 @default.
• W2488752448 hasAuthorship W2488752448A5039853102 @default.
• W2488752448 hasAuthorship W2488752448A5056619151 @default.
• W2488752448 hasAuthorship W2488752448A5066546093 @default.
• W2488752448 hasBestOaLocation W24887524481 @default.
• W2488752448 hasConcept C108615695 @default.
• W2488752448 hasConcept C121332964 @default.
• W2488752448 hasConcept C127313418 @default.
• W2488752448 hasConcept C150394285 @default.
• W2488752448 hasConcept C159390177 @default.
• W2488752448 hasConcept C178790620 @default.
• W2488752448 hasConcept C185592680 @default.
• W2488752448 hasConcept C187320778 @default.
• W2488752448 hasConcept C199289684 @default.
• W2488752448 hasConcept C205093917 @default.
• W2488752448 hasConcept C20556612 @default.
• W2488752448 hasConcept C24939127 @default.
• W2488752448 hasConcept C2776469828 @default.
• W2488752448 hasConcept C516920438 @default.
• W2488752448 hasConcept C518851703 @default.
• W2488752448 hasConcept C58445606 @default.
• W2488752448 hasConcept C85676937 @default.
• W2488752448 hasConcept C97355855 @default.
• W2488752448 hasConceptScore W2488752448C108615695 @default.
• W2488752448 hasConceptScore W2488752448C121332964 @default.
• W2488752448 hasConceptScore W2488752448C127313418 @default.
• W2488752448 hasConceptScore W2488752448C150394285 @default.
• W2488752448 hasConceptScore W2488752448C159390177 @default.
• W2488752448 hasConceptScore W2488752448C178790620 @default.
• W2488752448 hasConceptScore W2488752448C185592680 @default.
• W2488752448 hasConceptScore W2488752448C187320778 @default.
• W2488752448 hasConceptScore W2488752448C199289684 @default.
• W2488752448 hasConceptScore W2488752448C205093917 @default.
• W2488752448 hasConceptScore W2488752448C20556612 @default.
• W2488752448 hasConceptScore W2488752448C24939127 @default.
• W2488752448 hasConceptScore W2488752448C2776469828 @default.
• W2488752448 hasConceptScore W2488752448C516920438 @default.
• W2488752448 hasConceptScore W2488752448C518851703 @default.
• W2488752448 hasConceptScore W2488752448C58445606 @default.

• next