On-site generation of hydrogen from ethanol

Details

• Creators:
  Lee, S. ; Raper, J. ; Ludlow, D. ; Henthorn, K.
• Corporate Creators:
  Missouri University of Science and Technology. Center for Infrastructure Engineering Studies ; United States. Department of Transportation. University Transportation Centers (UTC) Program
• Corporate Contributors:
  United States. Department of Transportation. Research and Special Programs Administration
• Subject/TRT Terms:
  • Hydrogen production
  • Hydrogen fuels
  • Ethanol
  • Alternate fuels
• Publication/ Report Number:
  UTC-R170 ; 00012804
• Resource Type:
  Research Paper
• Geographical Coverage:
  United States
• Edition:
  Final report
• Corporate Publisher:
  Missouri University of Science and Technology. Center for Infrastructure Engineering Studies ; University Transportation Centers Program (U.S.)
• Abstract:
  Supercritical water is a synergistic, non-catalytic media for the reformation of crude ethanol feedstocks into hydrogen. The kinetics of the supercritical water reformation of ethanol was experimentally studied in a tubular reactor made of Inconel 625 alloy. The high enthalpy level of supercritical water and the extraordinary solubility of reaction components in supercritical water allow the reformation reaction to proceed without the presence of a heterogeneous catalyst. The principal reactions are pyrolytic decomposition and reformation of ethanol, which are competing in nature. The products of both reactions are quite similar yielding both hydrogen and carbon oxides, except that the former reaction also generates methane which undergoes further reformation in the supercritical water medium. The competitive nature of the reformation and pyrolytic decomposition reactions along with the water gas shift reaction in the supercritical reformation process was elucidated from a mechanistic standpoint. Kinetic rate information as well as the optimal process operating conditions were obtained for the supercritical water reformation process. /Abstract from report summary page/
• Format:
  PDF
• Funding:
  DTRS98-G-0021
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/16357/dot_16357_DS1.pdf
• File Type:
  [PDF - 391.39 KB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:c83860893de6c14c9f562f4b7e3888edadcdea2d9e15d919db5980a6683e66a5b23fbc89dab331ac6fdd52aaf5203f1cce105c95053061f56fd584f338e04bf2