Gas to liquids: natural gas conversion to aromatic fuels and chemicals in a hydrogen-permeable ceramic hollow fiber membrane reactor

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dc.contributor.authorXue, J.
dc.contributor.authorChen, Y.
dc.contributor.authorWei, Y.
dc.contributor.authorFeldhoff, A.
dc.contributor.authorWang, H.
dc.contributor.authorCaro, J.
dc.date.issued2016
dc.description.abstractThe performance of a dense ceramic hydrogen-permeable membrane reactor for the nonoxidative methane dehydroaromatization (MDA), according to the equilibrium reaction 6CH₄ ⇆ C₆H₆+ 9H₂ with a 6 wt % Mo/HZSM-5 bifunctional catalyst was investigated. A U-shaped ceramic hollow fiber membrane of the composition La₅.₅Wₒ.₆Mo₀.₄O₁₁.₂₅−δ (LWM₀.₄) has been used for the in situ removal of H₂ to overcome thermodynamic constraints. The yield of aromatics (benzene, toluene, naphthalene) in the MDA could be increased in the beginning of the aromatization reaction by ∼50%–70%, in comparison with the fixed-bed reactor, because 40%–60% of the H₂ abstracted have been extracted at 700 °C with a weight hourly space velocity (WHSV) of 840 cm³ gcat¯¹ h¯¹. These advantages of the membrane reactor operation decrease with time on stream, since the removal of H₂ boosts not only CH₄ conversion and yield of aromatics, but also catalyst deactivation by deposition of carbonaceous deposits. However, the catalyst system could be regenerated by burning the coke away with air.
dc.description.statementofresponsibilityJian Xue, Yan Chen, Yanying Wei, Armin Feldhoff, Haihui Wang, and Juergen Caro
dc.identifier.citationACS Catalysis, 2016; 6(4):2448-2451
dc.identifier.doi10.1021/acscatal.6b00004
dc.identifier.issn2155-5435
dc.identifier.issn2155-5435
dc.identifier.urihttp://hdl.handle.net/2440/99239
dc.language.isoen
dc.publisherACS
dc.relation.granthttp://purl.org/au-research/grants/arc/FT140100757
dc.rights© 2016 American Chemical Society
dc.source.urihttps://doi.org/10.1021/acscatal.6b00004
dc.subjectnatural gas conversion; nonoxidative methane dehydroaromatization; hydrogen-permeable ceramic membrane; hollow fiber membrane; gas-to-liquids technologies; catalyst regeneration
dc.titleGas to liquids: natural gas conversion to aromatic fuels and chemicals in a hydrogen-permeable ceramic hollow fiber membrane reactor
dc.typeJournal article
pubs.publication-statusPublished

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