2020
DOI: 10.1016/j.cej.2019.123191
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Isotherms, thermodynamics and kinetics of methane-shale adsorption pair under supercritical condition: Implications for understanding the nature of shale gas adsorption process

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Cited by 81 publications
(79 citation statements)
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“…Table 2 assumes that the adsorption occurs endothermically because it has a positive H value (10.861-35.221 kJ/mol) and the adsorption process which has an H value <84 kJ/mol, it is assumed that the adsorption process occurs physically. S is positive, assuming the degree of irregularity in the solid-liquid phase during the adsorption process of the dye onto the adsorbent surface (Dang et al, 2020). With this, a positive S value indicates that the dye has a high affinity for the adsorbent because in the adsorption process the energy required to form a bond with the adsorbent is lower than the energy required to break the same bond.…”
Section: Resultsmentioning
confidence: 99%
“…Table 2 assumes that the adsorption occurs endothermically because it has a positive H value (10.861-35.221 kJ/mol) and the adsorption process which has an H value <84 kJ/mol, it is assumed that the adsorption process occurs physically. S is positive, assuming the degree of irregularity in the solid-liquid phase during the adsorption process of the dye onto the adsorbent surface (Dang et al, 2020). With this, a positive S value indicates that the dye has a high affinity for the adsorbent because in the adsorption process the energy required to form a bond with the adsorbent is lower than the energy required to break the same bond.…”
Section: Resultsmentioning
confidence: 99%
“…At present, there are two most commonly used equations for fitting methane adsorption isotherms of shale, which are Langmuir equation and DR equation (Ji et al, 2015;Tian et al, 2016;Li et al, 2018;Song et al, 2018;Wang Y. et al, 2019;Dang et al, 2020). We have conducted relevant researches about the difference between these two equations and believe that Langmuir equation is adequate for most of the practical reservoir assessments since it gives quite similar results with the DR model (Chen et al, 2017b).…”
Section: Langmuir Equation Fitting Of Absolute Adsorption Isothermsmentioning
confidence: 99%
“…The non-linear fitting of Langmuir and Freundlich model to isothermal adsorption data is shown in Figure 3 and Table 4. All samples are fitted well with the Freundlich model by considering lower Akaike's information criterion (AICc) [37]. The degree of nonlinearity and difficulty of adsorption both have negative correlations with the value of 1/n.…”
Section: Adsorption Isothermsmentioning
confidence: 99%