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H-D exchange between CD4 and solid acids: AlCl3 /sulfonic acid resin, promoted and unpromoted sulfated zirconia, and zeolite HZSM-5

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Keywords
  • H-D Exchange
  • Methane
  • Solid Acids
  • Zeolite Hzsm-5
  • Sulfated Zirconia
  • Aluminum Chloride/Sulfonic Acid Resin
  • Iron- And Manganese-Promoted Sulfated Zirconia
  • Onclassical Carbonium-Ions
  • High-Silica Zeolites
  • Butane Isomerization
  • Catalytic Transformations
  • Paraffin Isomerization
  • Manganese
  • Iron
  • Superacids
  • Behavior
  • Cracking

Abstract

Microsoft Word - 54r9S0GQ05fYc3jotQa.Jurnal.Catal.PDF.doc CATALYSIS LETTERS 72 (3-4): 129-133 2001 H-D exchange between CD4 and solid acids: AlCl3/sulfonic acid resin, promoted and unpromoted sulfated zirconia, and zeolite HZSM-5 Preprint of the Department of Inorganic Chemistry, Fritz -Haber-Institute of the MPG (for personal use only) (www.fhi-berlin.mpg.de/ac) Authors: Jentoft RE, Gates BC Jentoft RE Max-Planck-Gesellschaft, Fritz-Haber-Institut Dept. of Inorganic Chemistry Faradayweg 4-6, 14195 Berlin, Germany Abstract: The H-D exchange reaction between CD4 and each of a family of solid acids (the zeolite HZSM-5, sulfated zirconia, iron- and manganese-promoted sulfated zirconia, and AlCl3/sulfonic acid resin) was investigated with a batch recirculation flow reactor. the data determine initial rates of the exchange reaction giving CD3H at temperatures ranging from 440 K for AlCl3/sulfonic acid resin to 688 and 703 K for the zeolite and promoted sulfated zirconia, respectively. Extrapolated results show that the reaction is three orders of magnitude faster with the AlCl3/sulfonated resin tan analogue of the very strongly acidic combination of AlCl3 and H2SO4) than with HZSM-5 or promoted sulfated zirconia and two orders of magnitude faster with the latter than with sulfated zirconia.

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