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Urea – Formaldehyde – Precondensate (UFC)

Silver Catalyst Process:

  • An evaporated Methanol Water Mixture is fed together with ambient air to the silver catalyst.
  • The generated process gas is then absorbed in a Urea-Water solution and condensed in a selective absorption step.
  • Standard trade solutions of up to UFC 75 can be produced directly in the absorber. Higher concentrations are not achievable due to process water balance.
  • The H2 rich absorption tail gas is combusted in a thermal oxidizer or special boiler and is generating steam or can even be fed to a gas motor generating electric power.  

Metal Oxide Process:

  • Methanol is fed together with ambient air to the metal oxide catalyst (iron oxide in combination with molybdenum and/or vanadium).
  • The generated process gas is then absorbed in a Urea-Water solution and condensed in a selective absorption step
  • About 2 / 3 of the absorption off gas is recycled to the reactor
  • The absorption off gas is oxidized on a palladium catalyst which can be equipped alternatively with waste heat recovery.
  • All standard trade solutions of up to UFC 85 can be produced.