Physical model and experimental validation of a high temperature proton exchange membrane electrochemical hydrogen pump cell for efficient single-stage extraction of low concentration hydrogen gas.
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| Title: | Physical model and experimental validation of a high temperature proton exchange membrane electrochemical hydrogen pump cell for efficient single-stage extraction of low concentration hydrogen gas. |
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| Authors: | Stansberry, John M.1,2 (AUTHOR), Perego, Andrea3 (AUTHOR), Kulkarni, Devashish4 (AUTHOR), Parkinson, Dilworth Y5 (AUTHOR), Brouwer, Jacob1,2,6 (AUTHOR) jbrouwer@uci.edue, Zenyuk, Iryna V.1,2,6 (AUTHOR) izenyuk@uci.edu |
| Source: | Chemical Engineering Journal. Jul2025, Vol. 515, pN.PAG-N.PAG. 1p. |
| Subjects: | X-ray computed microtomography, Fuel cells, Fuel quality, High temperatures, X-ray imaging, Natural gas |
| Abstract: | • Insufficient and excessive phosphoric acid in electrodes negatively impacts EHP performance. • Separation of low concentration hydrogen (2 % vol) to 99.99 % + purity is demonstrated. • Model and experiments show H 2 purity product purity is enhanced by pressurizing cathode. • HT-PEM EHP is imaged with X-ray CT in operando using custom hardware. There is interest in valorization of existing natural gas infrastructure to facilitate the co-transportation of hydrogen via blending of hydrogen gas initially at limited concentrations of 1–20 vol% H 2 and to subsequently extract hydrogen at fuel cell quality standards (SAE J2719/ISO14687-2). High temperature proton exchange membrane electrochemical hydrogen pump (HT-PEM EHP) based on phosphoric acid doped polybenzimidazole (PA-PBI) exhibits good performance at elevated temperatures (>120 °C), which provides desirable tolerance to non-methane natural gas constituents that are problematic for lower temperature based EHP. To better understand the suitability of the HT-PEM EHP for such gas separation processes, a two-dimensional model of EHP based on PA-PBI was developed. The model is validated for several relevant operating conditions and across cells with differing amounts of phosphoric acid content in the electrodes. Operando micro x-ray computed tomography (CT) imaging of an HT-PEM EHP was used to further validate physical parameters and assumptions of the model. The impacts of pressure, relative humidity of the anode feed, and concentration of feed gases on separation performance are investigated. This study shows that a specific energy of separation of 5.1 kWh/kg H 2 at a hydrogen recovery factor (HRF) of 50 vol% can be achieved in a single stage with the EHP, producing fuel cell quality hydrogen purity of 99.99 vol% H 2 from a 2 vol% H 2 /CH 4 feed blend, while pressurizing the product H 2 at a pressure ratio of 1.3 relative to feed pressure. [ABSTRACT FROM AUTHOR] |
| Copyright of Chemical Engineering Journal is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 185483315 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Physical model and experimental validation of a high temperature proton exchange membrane electrochemical hydrogen pump cell for efficient single-stage extraction of low concentration hydrogen gas. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Stansberry%2C+John+M%2E%22">Stansberry, John M.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Perego%2C+Andrea%22">Perego, Andrea</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kulkarni%2C+Devashish%22">Kulkarni, Devashish</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Parkinson%2C+Dilworth+Y%22">Parkinson, Dilworth Y</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Brouwer%2C+Jacob%22">Brouwer, Jacob</searchLink><relatesTo>1,2,6</relatesTo> (AUTHOR)<i> jbrouwer@uci.edue</i><br /><searchLink fieldCode="AR" term="%22Zenyuk%2C+Iryna+V%2E%22">Zenyuk, Iryna V.</searchLink><relatesTo>1,2,6</relatesTo> (AUTHOR)<i> izenyuk@uci.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Chemical+Engineering+Journal%22">Chemical Engineering Journal</searchLink>. Jul2025, Vol. 515, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22X-ray+computed+microtomography%22">X-ray computed microtomography</searchLink><br /><searchLink fieldCode="DE" term="%22Fuel+cells%22">Fuel cells</searchLink><br /><searchLink fieldCode="DE" term="%22Fuel+quality%22">Fuel quality</searchLink><br /><searchLink fieldCode="DE" term="%22High+temperatures%22">High temperatures</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+imaging%22">X-ray imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Natural+gas%22">Natural gas</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: • Insufficient and excessive phosphoric acid in electrodes negatively impacts EHP performance. • Separation of low concentration hydrogen (2 % vol) to 99.99 % + purity is demonstrated. • Model and experiments show H 2 purity product purity is enhanced by pressurizing cathode. • HT-PEM EHP is imaged with X-ray CT in operando using custom hardware. There is interest in valorization of existing natural gas infrastructure to facilitate the co-transportation of hydrogen via blending of hydrogen gas initially at limited concentrations of 1–20 vol% H 2 and to subsequently extract hydrogen at fuel cell quality standards (SAE J2719/ISO14687-2). High temperature proton exchange membrane electrochemical hydrogen pump (HT-PEM EHP) based on phosphoric acid doped polybenzimidazole (PA-PBI) exhibits good performance at elevated temperatures (>120 °C), which provides desirable tolerance to non-methane natural gas constituents that are problematic for lower temperature based EHP. To better understand the suitability of the HT-PEM EHP for such gas separation processes, a two-dimensional model of EHP based on PA-PBI was developed. The model is validated for several relevant operating conditions and across cells with differing amounts of phosphoric acid content in the electrodes. Operando micro x-ray computed tomography (CT) imaging of an HT-PEM EHP was used to further validate physical parameters and assumptions of the model. The impacts of pressure, relative humidity of the anode feed, and concentration of feed gases on separation performance are investigated. This study shows that a specific energy of separation of 5.1 kWh/kg H 2 at a hydrogen recovery factor (HRF) of 50 vol% can be achieved in a single stage with the EHP, producing fuel cell quality hydrogen purity of 99.99 vol% H 2 from a 2 vol% H 2 /CH 4 feed blend, while pressurizing the product H 2 at a pressure ratio of 1.3 relative to feed pressure. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Chemical Engineering Journal is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.cej.2025.163161 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: X-ray computed microtomography Type: general – SubjectFull: Fuel cells Type: general – SubjectFull: Fuel quality Type: general – SubjectFull: High temperatures Type: general – SubjectFull: X-ray imaging Type: general – SubjectFull: Natural gas Type: general Titles: – TitleFull: Physical model and experimental validation of a high temperature proton exchange membrane electrochemical hydrogen pump cell for efficient single-stage extraction of low concentration hydrogen gas. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Stansberry, John M. – PersonEntity: Name: NameFull: Perego, Andrea – PersonEntity: Name: NameFull: Kulkarni, Devashish – PersonEntity: Name: NameFull: Parkinson, Dilworth Y – PersonEntity: Name: NameFull: Brouwer, Jacob – PersonEntity: Name: NameFull: Zenyuk, Iryna V. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 13858947 Numbering: – Type: volume Value: 515 Titles: – TitleFull: Chemical Engineering Journal Type: main |
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