Conversion of light hydrocarbon gases to metal carbides for production of liquid fuels and chemicals. Quarterly technical status report, October 1, 1994--December 31, 1994

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Scoping runs with up to 0.125 cfm methane in 1 cfm (ambient temperature) of argon and 12g/min of MgO were performed in October using a graphite anode and tungsten cathode in the new plasma reactor. A GC analysis of the gas sample from the cooling chamber and of the head space gas above the hydrolyzed solid sample revealed the presence of C{sub 3}H{sub 4} and C{sub 2}H{sub 2}, which suggests the formation of magnesium carbide. However, a similar run performed with MgO feeding into a pure argon plasma gave similar results, indicating possible reaction of the graphite electrode with the ... continued below

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6 p.

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Diaz, A.F.; Modestino, A.J.; Pride, J.D.; Howard, J.B.; Tester, J.W. & Peters, W.A. February 1, 1995.

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Scoping runs with up to 0.125 cfm methane in 1 cfm (ambient temperature) of argon and 12g/min of MgO were performed in October using a graphite anode and tungsten cathode in the new plasma reactor. A GC analysis of the gas sample from the cooling chamber and of the head space gas above the hydrolyzed solid sample revealed the presence of C{sub 3}H{sub 4} and C{sub 2}H{sub 2}, which suggests the formation of magnesium carbide. However, a similar run performed with MgO feeding into a pure argon plasma gave similar results, indicating possible reaction of the graphite electrode with the MgO to form carbides and/or direct formation of C{sub 3}H{sub 4} and C{sub 2}H{sub 2} in the arc. A GC analysis of the gas sample taken from the cooling chamber from a run in an argon plasma without MgO feeding did no yield any C{sub 3}H{sub 4} and C{sub 2}H{sub 2}, suggesting that the MgO powder is hydrated and is a probable hydrogen source. Thus far, the main obstacle to performing a 100% methane/MgO scoping run is the instability of the methane plasma. Two approaches are being taken to address this issue: increasing the open circuit voltage of the power supply to permit operation of an arc at higher voltage levels and magnetically rotating the arc with a solenoid around the plasma reactor. The latter approach is currently being pursued.

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6 p.

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OSTI as DE95009366

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  • Other Information: PBD: Feb 1995

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  • Other: DE95009366
  • Report No.: DOE/PC/92111--T8
  • Report No.: FE-MIT--92111-9
  • Grant Number: AC22-92PC92111
  • DOI: 10.2172/39733 | External Link
  • Office of Scientific & Technical Information Report Number: 39733
  • Archival Resource Key: ark:/67531/metadc688262

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  • February 1, 1995

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  • July 25, 2015, 2:20 a.m.

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Diaz, A.F.; Modestino, A.J.; Pride, J.D.; Howard, J.B.; Tester, J.W. & Peters, W.A. Conversion of light hydrocarbon gases to metal carbides for production of liquid fuels and chemicals. Quarterly technical status report, October 1, 1994--December 31, 1994, report, February 1, 1995; Cambridge, Massachusetts. (digital.library.unt.edu/ark:/67531/metadc688262/: accessed August 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.