Methane coupling by membrane reactor. Quarterly technical progress report, September 25, 1995--December 24, 1995

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The performance of the third type of catalytic membrane reactor configuration, with catalyst deposited in the membrane and no catalyst or inert materials in the tube side, was evaluated. The C{sub 2} selectivity obtained was about 10% due to the gas phase reaction in the empty tube side of the reactor. The membrane reactor with an oxygen-permeable dense membrane has been built. The use of a dense membrane will eliminate the loss of hydrocarbon from the tube side to the shell side, as observed in the Vycor glass membrane reactor. Also, air can be used as the oxygen source without ... continued below

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45 p.

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Creator: Unknown. March 15, 1996.

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Description

The performance of the third type of catalytic membrane reactor configuration, with catalyst deposited in the membrane and no catalyst or inert materials in the tube side, was evaluated. The C{sub 2} selectivity obtained was about 10% due to the gas phase reaction in the empty tube side of the reactor. The membrane reactor with an oxygen-permeable dense membrane has been built. The use of a dense membrane will eliminate the loss of hydrocarbon from the tube side to the shell side, as observed in the Vycor glass membrane reactor. Also, air can be used as the oxygen source without contaminating the product. La/MgO was synthesized and will be used as the catalyst for the dense membrane reactor. This catalyst was reported in the literature to show significant improvement of C{sub 2} selectivity and yield for oxidative coupling of methane in a packed-bed reactor by using the operation mode of staged-feed of oxygen. A reactor mode for methane oxidative coupling in reactors with both distributed oxygen feed and C{sub 2} product removal was developed based on the general model of cross-flow reactors reported in the last quarterly report. A distributed oxygen feed could give rise to much higher C{sub 2} yield than the co-feed reactor as long as the space time is long enough. In the case of a two-membrane reactor, where oxygen is supplied by one membrane and products are removed through the other membrane, a high separation factor of C{sub 2} product to methane for the product-removal membrane is critical to achieve high C{sub 2} yield.

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45 p.

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OSTI as DE98004141

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  • Other Information: PBD: 15 Mar 1996

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  • Other: DE98004141
  • Report No.: DOE/PC/92113--T16
  • Grant Number: AC22-92PC92113
  • DOI: 10.2172/572621 | External Link
  • Office of Scientific & Technical Information Report Number: 572621
  • Archival Resource Key: ark:/67531/metadc694355

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  • March 15, 1996

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  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 11, 2015, 12:31 p.m.

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Methane coupling by membrane reactor. Quarterly technical progress report, September 25, 1995--December 24, 1995, report, March 15, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc694355/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.