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1998[X]
1Author    Z. NaturforschRequires cookie*
 Title    The Promotive Properties of Alkali Metal Nitrate Melts for the Partial Oxidation of Methane to Methanol  
 Abstract    B o r-Jih L ee, S higeo K itsu k aw a, S h u k u ji A sa k u ra * , K en z o F u k u d a D epartm ent (Na, K)N 0 3 melts of various ratios were used as prom oters for the partial oxidation of methane to methanol. Experiments were perform ed in a flow reactor system under atmo­ spheric pressure and at various tem peratures in the range of 525-600 °C. The influence of reaction temperature, melt composition, and reduced oxygen species on m ethane conversion and methanol selectivity were investigated systematically. The major reaction products were CH 3O H, CO, C 0 2, and trace amounts of C2H 6 and C2H 4. A m ethane conversion of 1.8-12.4% and a methanol selectivity of 0.4-14.1% were obtained under these reaction condi­ tions. Binary melts could achieve higher m ethanol selectivity than a single melt. The amounts of reduced oxygen species 0 2~ and 0 22-were estimated from thermochemical data according to the ion equilibrium in molten nitrates. The promotive effect of nitrate melts was confirmed and the results indicate that superoxide 0 2~ plays an im portant role for methanol formation. 
  Reference    Z. Naturforsch. 53b, 249—255 (1998); received O ctober 7 1997 
  Published    1998 
  Keywords    Partial Oxidation, Conversion, Selectivity, Molten Salt, Reduced Oxygen Species 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-0249.pdf 
 Identifier    ZNB-1998-53b-0249 
 Volume    53