SPECTRAL ANALYSIS OF THE VARIOUS COMPONENTS OF AN AUTO CATALYST

Abstract

This paper presents a study reaction comparison who was carried out in a glass continuous- flow reactor at atmospheric pressure. The inlet gas contained 8.1 vol. % CO in Ar (Messer MG Chimco Gas). The WGS reaction was carried out in the temperature range 270 − 400℃, space velocities (GHSV) from 2000 to 8000 ℎ^-1, H2O/CO ratio = 3 (vapour/gas = 0.27) and in the presence of 2 vol. % H2S. The converted mixture was controlled continuously by an Infralyt 200 spectral gas-analyser recording online CO and CO2 contents in vol. % (±1.5) at the reactor outlet. The research presented in this paper has obvious practical potential. The whole experiment was directed to the activity of low Ni- content catalyst and what is the effect of alkali addition when the reaction is performed at atmospheric pressure and higher H2S content in the reaction mixture. Improvement of engine characteristics both by reducing harmful quantities emitted and by increasing power were confirmed by analyzes made in a vehicle inspection station.

Keywords

• Sulphur-tolerant catalysts, spectrophotometre, catalytic materials, atomic ratio.