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    Rights statement: This is the author’s version of a work that was accepted for publication in Separation and Purification Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Separation and Purification Technology, 277, 2021 DOI: 10.1016/j.seppur.2021.119426

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    Embargo ends: 6/08/22

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Porous materials for low-temperature H2S-removal in fuel cell applications

Research output: Contribution to journalJournal articlepeer-review

E-pub ahead of print
Article number119426
<mark>Journal publication date</mark>15/12/2021
<mark>Journal</mark>Separation and Purification Technology
Volume277
Number of pages16
Publication StatusE-pub ahead of print
Early online date6/08/21
<mark>Original language</mark>English

Abstract

When fuel gases (H2 and CH4) for fuel cells are produced from fossil fuels and biomass, there is a high possibility of presence of hydrogen sulfide (H2S). Because H2S can poison fuel cells and cause long lasting damage, it is necessary to rigorously remove H2S from fuel gases before use in fuel cells. With the advantages of high efficiency and low energy consumption, desulphurisation via adsorption at low temperatures has attracted the attention of many researchers and has seen recent advances. This review compares the performance of commonly-studied porous materials (metal oxides, activated carbon, zeolites, silica, and metal–organic frameworks (MOF)) that are used for adsorption at low temperatures. Test conditions such as feed gas compositions, feed gas velocity, and breakthrough concentration threshold are considered when comparing the adsorption performance of the materials. High performing materials from each material category are identified and future research directions are discussed.

Bibliographic note

This is the author’s version of a work that was accepted for publication in Separation and Purification Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Separation and Purification Technology, 277, 2021 DOI: 10.1016/j.seppur.2021.119426