Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/99239
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Gas to liquids: natural gas conversion to aromatic fuels and chemicals in a hydrogen-permeable ceramic hollow fiber membrane reactor |
Author: | Xue, J. Chen, Y. Wei, Y. Feldhoff, A. Wang, H. Caro, J. |
Citation: | ACS Catalysis, 2016; 6(4):2448-2451 |
Publisher: | ACS |
Issue Date: | 2016 |
ISSN: | 2155-5435 2155-5435 |
Statement of Responsibility: | Jian Xue, Yan Chen, Yanying Wei, Armin Feldhoff, Haihui Wang, and Juergen Caro |
Abstract: | The 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. |
Keywords: | natural gas conversion; nonoxidative methane dehydroaromatization; hydrogen-permeable ceramic membrane; hollow fiber membrane; gas-to-liquids technologies; catalyst regeneration |
Rights: | © 2016 American Chemical Society |
DOI: | 10.1021/acscatal.6b00004 |
Grant ID: | http://purl.org/au-research/grants/arc/FT140100757 |
Published version: | http://dx.doi.org/10.1021/acscatal.6b00004 |
Appears in Collections: | Aurora harvest 3 Chemical Engineering publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.