Research of CO 2 and N 2 Adsorption Behavior in K-Illite Slit Pores by GCMC Method
Understanding the adsorption mechanisms of CO2 and N2 in illite, one of the main components of clay in shale, is important to improve the precision of the shale gas exploration and development. We investigated the adsorption mechanisms of CO2 and N2 in K-illite with varying pore sizes at the tempera...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal Article |
| Published: |
Nature Publishing Group
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/55004 |
| _version_ | 1848759522631352320 |
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| author | Chen, G. Lu, S. Zhang, J. Xue, Q. Han, T. Xue, H. Tian, S. Li, J. Xu, C. Pervukhina, Marina Clennell, B. |
| author_facet | Chen, G. Lu, S. Zhang, J. Xue, Q. Han, T. Xue, H. Tian, S. Li, J. Xu, C. Pervukhina, Marina Clennell, B. |
| author_sort | Chen, G. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Understanding the adsorption mechanisms of CO2 and N2 in illite, one of the main components of clay in shale, is important to improve the precision of the shale gas exploration and development. We investigated the adsorption mechanisms of CO2 and N2 in K-illite with varying pore sizes at the temperature of 333, 363 and 393 K over a broad range of pressures up to 30 MPa using the grand canonical Monte Carlo (GCMC) simulation method. The simulation system is proved to be reasonable and suitable through the discussion of the impact of cation dynamics and pore wall thickness. The simulation results of the excess adsorption amount, expressed per unit surface area of illite, is in general consistency with published experimental results. It is found that the sorption potential overlaps in micropores, leading to a decreasing excess adsorption amount with the increase of pore size at low pressure, and a reverse trend at high pressure. The excess adsorption amount increases with increasing pressure to a maximum and then decreases with further increase in the pressure, and the decreasing amount is found to increase with the increasing pore size. For pores with size greater larger thaN2 nm, the overlap effect disappears. |
| first_indexed | 2025-11-14T10:01:13Z |
| format | Journal Article |
| id | curtin-20.500.11937-55004 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:01:13Z |
| publishDate | 2016 |
| publisher | Nature Publishing Group |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-550042017-09-28T07:44:18Z Research of CO 2 and N 2 Adsorption Behavior in K-Illite Slit Pores by GCMC Method Chen, G. Lu, S. Zhang, J. Xue, Q. Han, T. Xue, H. Tian, S. Li, J. Xu, C. Pervukhina, Marina Clennell, B. Understanding the adsorption mechanisms of CO2 and N2 in illite, one of the main components of clay in shale, is important to improve the precision of the shale gas exploration and development. We investigated the adsorption mechanisms of CO2 and N2 in K-illite with varying pore sizes at the temperature of 333, 363 and 393 K over a broad range of pressures up to 30 MPa using the grand canonical Monte Carlo (GCMC) simulation method. The simulation system is proved to be reasonable and suitable through the discussion of the impact of cation dynamics and pore wall thickness. The simulation results of the excess adsorption amount, expressed per unit surface area of illite, is in general consistency with published experimental results. It is found that the sorption potential overlaps in micropores, leading to a decreasing excess adsorption amount with the increase of pore size at low pressure, and a reverse trend at high pressure. The excess adsorption amount increases with increasing pressure to a maximum and then decreases with further increase in the pressure, and the decreasing amount is found to increase with the increasing pore size. For pores with size greater larger thaN2 nm, the overlap effect disappears. 2016 Journal Article http://hdl.handle.net/20.500.11937/55004 10.1038/srep37579 Nature Publishing Group unknown |
| spellingShingle | Chen, G. Lu, S. Zhang, J. Xue, Q. Han, T. Xue, H. Tian, S. Li, J. Xu, C. Pervukhina, Marina Clennell, B. Research of CO 2 and N 2 Adsorption Behavior in K-Illite Slit Pores by GCMC Method |
| title | Research of CO 2 and N 2 Adsorption Behavior in K-Illite Slit Pores by GCMC Method |
| title_full | Research of CO 2 and N 2 Adsorption Behavior in K-Illite Slit Pores by GCMC Method |
| title_fullStr | Research of CO 2 and N 2 Adsorption Behavior in K-Illite Slit Pores by GCMC Method |
| title_full_unstemmed | Research of CO 2 and N 2 Adsorption Behavior in K-Illite Slit Pores by GCMC Method |
| title_short | Research of CO 2 and N 2 Adsorption Behavior in K-Illite Slit Pores by GCMC Method |
| title_sort | research of co 2 and n 2 adsorption behavior in k-illite slit pores by gcmc method |
| url | http://hdl.handle.net/20.500.11937/55004 |