A theoretical analysis of non-chemical separation of hydrogen sulfide from methane by nano-porous membranes using capillary condensation
The potential of a nano-porous membrane to perform non-chemical separation of a gas mixture has been explored theoretically. Separation of hydrogen sulfide from its mixture with methane by capillary condensation has been selected as the model case. Because of its much lower condensation pressure com...
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| Format: | Article |
| Language: | English |
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2008
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| Online Access: | http://scholars.utp.edu.my/id/eprint/484/ http://scholars.utp.edu.my/id/eprint/484/1/chemical_and_processing_2008.pdf |
| _version_ | 1848658999255236608 |
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| author | Z., Man F., Ahmad H., Mukhtar K., Dutta Binay |
| author_facet | Z., Man F., Ahmad H., Mukhtar K., Dutta Binay |
| author_sort | Z., Man |
| building | UTP Institutional Repository |
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| description | The potential of a nano-porous membrane to perform non-chemical separation of a gas mixture has been explored theoretically. Separation of hydrogen sulfide from its mixture with methane by capillary condensation has been selected as the model case. Because of its much lower condensation pressure compared to methane, hydrogen sulfide preferentially condenses in the fine pores and get transported by Poiseuille flow. Permeation rate up to 600 gmol/m<sup>2</sup> s bar has been achieved at a temperature lower than the critical temperature of the permeating species and higher than the critical temperature of the non-permeating species. Since methane has a much lower critical temperature than hydrogen sulfide, it gets physically dissolved in the condensed phase of hydrogen sulfide. An equation of state (EOS) approach ha s been adopted to calculate the fugacity of methane in the gas as well as in the condensed phase-in order to estimate its solubility. Computation of permeation flux of the condensed phase as well as of the separation factor of hydrogen sulfide has been performed over a wide range of temperature, pressure and gas composition. The separation factor which is expectedly a function of these variables, ranged from 700 to 100. The separation technique is expected to have an enhanced attraction since it is clean and does not require a solvent as in the conventional separation of acid gases. © 2007 Elsevier B.V. All rights reserved.
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| format | Article |
| id | oai:scholars.utp.edu.my:484 |
| institution | Universiti Teknologi Petronas |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-13T07:23:27Z |
| publishDate | 2008 |
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| spelling | oai:scholars.utp.edu.my:4842017-01-19T08:26:48Z http://scholars.utp.edu.my/id/eprint/484/ A theoretical analysis of non-chemical separation of hydrogen sulfide from methane by nano-porous membranes using capillary condensation Z., Man F., Ahmad H., Mukhtar K., Dutta Binay TP Chemical technology The potential of a nano-porous membrane to perform non-chemical separation of a gas mixture has been explored theoretically. Separation of hydrogen sulfide from its mixture with methane by capillary condensation has been selected as the model case. Because of its much lower condensation pressure compared to methane, hydrogen sulfide preferentially condenses in the fine pores and get transported by Poiseuille flow. Permeation rate up to 600 gmol/m<sup>2</sup> s bar has been achieved at a temperature lower than the critical temperature of the permeating species and higher than the critical temperature of the non-permeating species. Since methane has a much lower critical temperature than hydrogen sulfide, it gets physically dissolved in the condensed phase of hydrogen sulfide. An equation of state (EOS) approach ha s been adopted to calculate the fugacity of methane in the gas as well as in the condensed phase-in order to estimate its solubility. Computation of permeation flux of the condensed phase as well as of the separation factor of hydrogen sulfide has been performed over a wide range of temperature, pressure and gas composition. The separation factor which is expectedly a function of these variables, ranged from 700 to 100. The separation technique is expected to have an enhanced attraction since it is clean and does not require a solvent as in the conventional separation of acid gases. © 2007 Elsevier B.V. All rights reserved. 2008 Article NonPeerReviewed application/pdf en http://scholars.utp.edu.my/id/eprint/484/1/chemical_and_processing_2008.pdf Z., Man and F., Ahmad and H., Mukhtar and K., Dutta Binay (2008) A theoretical analysis of non-chemical separation of hydrogen sulfide from methane by nano-porous membranes using capillary condensation. Chemical Engineering and Processing: Process Intensification, 47 (12). pp. 2203-2208. ISSN 2552701 http://www.scopus.com/inward/record.url?eid=2-s2.0-53549131977&partnerID=40&md5=6443da6fe648442b5801b401b74cdd40 10.1016/j.cep.2007.11.015 10.1016/j.cep.2007.11.015 10.1016/j.cep.2007.11.015 |
| spellingShingle | TP Chemical technology Z., Man F., Ahmad H., Mukhtar K., Dutta Binay A theoretical analysis of non-chemical separation of hydrogen sulfide from methane by nano-porous membranes using capillary condensation |
| title | A theoretical analysis of non-chemical separation of hydrogen sulfide from methane by nano-porous membranes using capillary condensation
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| title_full | A theoretical analysis of non-chemical separation of hydrogen sulfide from methane by nano-porous membranes using capillary condensation
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| title_fullStr | A theoretical analysis of non-chemical separation of hydrogen sulfide from methane by nano-porous membranes using capillary condensation
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| title_full_unstemmed | A theoretical analysis of non-chemical separation of hydrogen sulfide from methane by nano-porous membranes using capillary condensation
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| title_short | A theoretical analysis of non-chemical separation of hydrogen sulfide from methane by nano-porous membranes using capillary condensation
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| title_sort | theoretical analysis of non-chemical separation of hydrogen sulfide from methane by nano-porous membranes using capillary condensation |
| topic | TP Chemical technology |
| url | http://scholars.utp.edu.my/id/eprint/484/ http://scholars.utp.edu.my/id/eprint/484/ http://scholars.utp.edu.my/id/eprint/484/ http://scholars.utp.edu.my/id/eprint/484/1/chemical_and_processing_2008.pdf |