Effect of Equation of States on High-Pressure Volumetric Measurements of Methane-Coal Sorption Isotherms-Part 1: Volumes of Free Space and Methane Adsorption Isotherms
High-pressure volumetric analysis (HPVA) experiments were carried out using Particulate System's HPVA-II 200 at temperatures of 25 and 40 °C and pressures up to 7 MPa to quantify methane adsorption capacities of a coal sample. Six well-known equations of state (EOSs), namely, Peng-Robinson (PR)...
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| Format: | Journal Article |
| Language: | English |
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AMER CHEMICAL SOC
2019
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| Online Access: | http://hdl.handle.net/20.500.11937/89573 |
| _version_ | 1848765249109360640 |
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| author | Ekundayo, Jamiu Rezaee, Reza |
| author_facet | Ekundayo, Jamiu Rezaee, Reza |
| author_sort | Ekundayo, Jamiu |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | High-pressure volumetric analysis (HPVA) experiments were carried out using Particulate System's HPVA-II 200 at temperatures of 25 and 40 °C and pressures up to 7 MPa to quantify methane adsorption capacities of a coal sample. Six well-known equations of state (EOSs), namely, Peng-Robinson (PR), Soave-Redlich-Kwonk (SRK) and their volume translated forms (PR-Peneloux and SRK-Peneloux), Soave modified Benedict-Webb-Rubin (SBWR), and Lee-Kesler (LK) were used for data interpretation, and the results were compared with those calculated by the equipment using Z-factors from NIST-refprop software implementation of McCarty and Arp EOS for helium and Setzmann and Wagner EOS for methane. Because of variations in the Z-factors of helium and supercritical methane obtained from the different EOSs, large variations were observed in calculated isotherms and Langmuir parameters with the PR-Peneloux and PR-EOS family showing the largest relative deviations, while SRK-EOS and SRK-Peneloux gave more negative adsorption for each temperature. All the EOSs gave significantly lower density for the adsorbed phase at 40 °C compared to the value at 25 °C. This is consistent with the negative effect of temperature on adsorption. |
| first_indexed | 2025-11-14T11:32:15Z |
| format | Journal Article |
| id | curtin-20.500.11937-89573 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:32:15Z |
| publishDate | 2019 |
| publisher | AMER CHEMICAL SOC |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-895732022-11-14T05:19:07Z Effect of Equation of States on High-Pressure Volumetric Measurements of Methane-Coal Sorption Isotherms-Part 1: Volumes of Free Space and Methane Adsorption Isotherms Ekundayo, Jamiu Rezaee, Reza Science & Technology Technology Energy & Fuels Engineering, Chemical Engineering COMPRESSIBILITY FACTOR GAS-ADSORPTION CO2 ADSORPTION/DESORPTION TEMPERATURE HYSTERESIS SHALES RANGE CH4 High-pressure volumetric analysis (HPVA) experiments were carried out using Particulate System's HPVA-II 200 at temperatures of 25 and 40 °C and pressures up to 7 MPa to quantify methane adsorption capacities of a coal sample. Six well-known equations of state (EOSs), namely, Peng-Robinson (PR), Soave-Redlich-Kwonk (SRK) and their volume translated forms (PR-Peneloux and SRK-Peneloux), Soave modified Benedict-Webb-Rubin (SBWR), and Lee-Kesler (LK) were used for data interpretation, and the results were compared with those calculated by the equipment using Z-factors from NIST-refprop software implementation of McCarty and Arp EOS for helium and Setzmann and Wagner EOS for methane. Because of variations in the Z-factors of helium and supercritical methane obtained from the different EOSs, large variations were observed in calculated isotherms and Langmuir parameters with the PR-Peneloux and PR-EOS family showing the largest relative deviations, while SRK-EOS and SRK-Peneloux gave more negative adsorption for each temperature. All the EOSs gave significantly lower density for the adsorbed phase at 40 °C compared to the value at 25 °C. This is consistent with the negative effect of temperature on adsorption. 2019 Journal Article http://hdl.handle.net/20.500.11937/89573 10.1021/acs.energyfuels.8b04016 English AMER CHEMICAL SOC restricted |
| spellingShingle | Science & Technology Technology Energy & Fuels Engineering, Chemical Engineering COMPRESSIBILITY FACTOR GAS-ADSORPTION CO2 ADSORPTION/DESORPTION TEMPERATURE HYSTERESIS SHALES RANGE CH4 Ekundayo, Jamiu Rezaee, Reza Effect of Equation of States on High-Pressure Volumetric Measurements of Methane-Coal Sorption Isotherms-Part 1: Volumes of Free Space and Methane Adsorption Isotherms |
| title | Effect of Equation of States on High-Pressure Volumetric Measurements of Methane-Coal Sorption Isotherms-Part 1: Volumes of Free Space and Methane Adsorption Isotherms |
| title_full | Effect of Equation of States on High-Pressure Volumetric Measurements of Methane-Coal Sorption Isotherms-Part 1: Volumes of Free Space and Methane Adsorption Isotherms |
| title_fullStr | Effect of Equation of States on High-Pressure Volumetric Measurements of Methane-Coal Sorption Isotherms-Part 1: Volumes of Free Space and Methane Adsorption Isotherms |
| title_full_unstemmed | Effect of Equation of States on High-Pressure Volumetric Measurements of Methane-Coal Sorption Isotherms-Part 1: Volumes of Free Space and Methane Adsorption Isotherms |
| title_short | Effect of Equation of States on High-Pressure Volumetric Measurements of Methane-Coal Sorption Isotherms-Part 1: Volumes of Free Space and Methane Adsorption Isotherms |
| title_sort | effect of equation of states on high-pressure volumetric measurements of methane-coal sorption isotherms-part 1: volumes of free space and methane adsorption isotherms |
| topic | Science & Technology Technology Energy & Fuels Engineering, Chemical Engineering COMPRESSIBILITY FACTOR GAS-ADSORPTION CO2 ADSORPTION/DESORPTION TEMPERATURE HYSTERESIS SHALES RANGE CH4 |
| url | http://hdl.handle.net/20.500.11937/89573 |