Catalysts for the Oxidation of Carbon Monoxide at Low Temperatures.

Abstract

Four catalysts (hopcalite, Whetlerite, a supported palladium, and a supported platinum) were tested for efficiency in promoting the oxidation of carbon monoxide (CO). At room temperature and 50% RH, hopcalite has no catalytic capability and platinum has practically none. At room temperature and 15% RH, hopcalite is superior to platinum in catalyzing the oxidation of CO. Hopcalite is more efficient than either of the other three catalysts in the 52 to 66 C (125 to 150 F) temperature range at both humidities. Platinum and palladium are superior to both hopcalite and Whetlerite at both humidities in the 113 to 135 C (235 to 275 F) temperature range. Higher humidity decreases the CO-oxidizing capabilities of hopcalite and Whetlerite but does not do so for platinum and palladium. Whetlerite is in the lower-performing group of catalysts under all except one of the different conditions used in the tests. For the hopcalite, palladium, and platinum catalysts there is a temperature below 135 C (275 F) and above 68 C (155 F) at which CO can be oxidized efficiently.

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Document Details

Document Type
Technical Report
Publication Date
Nov 21, 1979
Accession Number
ADA077323

Entities

People

  • Frederic W. Williams
  • J. K. Musick

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Carbon Monoxide
  • Chemical Reaction Properties
  • Chemical Synthesis
  • Chemistry
  • Chromatographs
  • Dielectric Gases
  • Equations
  • Flow Rate
  • Gases
  • Humidity
  • Low Humidity
  • Low Temperature
  • Measurement
  • Military Research
  • Molecular Sieves
  • Oxidation
  • Stainless Steel

Readers

  • Mathematics or Statistics
  • Organic Chemistry
  • Surface Engineering/Surface Coating Technology.