Performance of hydrophobic and hydrophilic silica membrane reactors for the water gas shift reaction
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| Title: | Performance of hydrophobic and hydrophilic silica membrane reactors for the water gas shift reaction |
|---|---|
| Authors: | Giessler, Sabine1, Jordan, Luke1, Diniz da Costa, João C. joedac@cheque.uq.edu.au, Lu, G.Q. (Max)1 |
| Source: | Separation & Purification Technology. Jul2003, Vol. 32 Issue 1-3, p255. 10p. |
| Subjects: | Artificial membranes, Molecular sieves |
| Abstract: | In this study, a novel molecular sieve silica (MSS) membrane packed bed reactor (PBR) using a Cu/ZnO/Al2O3 catalyst was applied to the low-temperature water gas shift reaction (WGS). Best permeation results were H2 permeances of 1.5×10−6 mol s−1 m−2 Pa−1, H2/CO2 selectivities of 8 and H2/N2 selectivities of 18. It was shown that an operation with a sweep gas flow of 80 cm3 min−1, a feed flow rate of 50 cm3 min−1 and a H2O/CO molar ratio of one at 280 °C reached a 99% CO conversion. This is well above the thermodynamic equilibrium and achievable PBR conversion. Hydrophilic membranes underwent pore widening during the reaction while hydrophobic membranes indicated no such behaviour and also showed increased H2 permeation with temperature, a characteristic of activated transport. [Copyright &y& Elsevier] |
| Copyright of Separation & Purification Technology 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: 9570050 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Performance of hydrophobic and hydrophilic silica membrane reactors for the water gas shift reaction – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Giessler%2C+Sabine%22">Giessler, Sabine</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Jordan%2C+Luke%22">Jordan, Luke</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Diniz+da+Costa%2C+João+C%2E%22">Diniz da Costa, João C.</searchLink><i> joedac@cheque.uq.edu.au</i><br /><searchLink fieldCode="AR" term="%22Lu%2C+G%2EQ%2E+%28Max%29%22">Lu, G.Q. (Max)</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Separation+%26+Purification+Technology%22">Separation & Purification Technology</searchLink>. Jul2003, Vol. 32 Issue 1-3, p255. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Artificial+membranes%22">Artificial membranes</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+sieves%22">Molecular sieves</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In this study, a novel molecular sieve silica (MSS) membrane packed bed reactor (PBR) using a Cu/ZnO/Al2O3 catalyst was applied to the low-temperature water gas shift reaction (WGS). Best permeation results were H2 permeances of 1.5×10−6 mol s−1 m−2 Pa−1, H2/CO2 selectivities of 8 and H2/N2 selectivities of 18. It was shown that an operation with a sweep gas flow of 80 cm3 min−1, a feed flow rate of 50 cm3 min−1 and a H2O/CO molar ratio of one at 280 °C reached a 99% CO conversion. This is well above the thermodynamic equilibrium and achievable PBR conversion. Hydrophilic membranes underwent pore widening during the reaction while hydrophobic membranes indicated no such behaviour and also showed increased H2 permeation with temperature, a characteristic of activated transport. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Separation & Purification Technology 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/S1383-5866(03)00069-8 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 255 Subjects: – SubjectFull: Artificial membranes Type: general – SubjectFull: Molecular sieves Type: general Titles: – TitleFull: Performance of hydrophobic and hydrophilic silica membrane reactors for the water gas shift reaction Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Giessler, Sabine – PersonEntity: Name: NameFull: Jordan, Luke – PersonEntity: Name: NameFull: Diniz da Costa, João C. – PersonEntity: Name: NameFull: Lu, G.Q. (Max) IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2003 Type: published Y: 2003 Identifiers: – Type: issn-print Value: 13835866 Numbering: – Type: volume Value: 32 – Type: issue Value: 1-3 Titles: – TitleFull: Separation & Purification Technology Type: main |
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