Accession Number:

ADA199596

Title:

Light-Off Temperature Determination of Oxidation Catalyst Using Fourier Transform Infrared Technique

Descriptive Note:

Technical rept. Jul-Dec 1987

Corporate Author:

CHEMICAL RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1988-08-01

Pagination or Media Count:

17.0

Abstract:

Light off temperatures of oxidation catalysts are considered as one of the important parameters for catalyst performance evaluation. In this study, the in situ Fourier Transform IR technique was developed and used to determine the light-off temperatures and reaction products of three three-way automotive catalysts with 20 torr monomethylamine in air at 0.5 Lmin flow rate. Light-off temperatures were 140, 143, and 170 C for Davison, Allied-Signal, and Degussa oxidation catalysts, respectively. CO, CO2, H2O, and nitric acid were the major oxidation products. The activation energies of formation of CO and CO2 on the catalysts were also determined. Keywords Light off temperature, Fourier transform Infrared spectroscopy Oxidation products Oxidation Catalyst.

Subject Categories:

  • Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE