TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

TWO-WAY CATALYST [2 records]

Record 1 2010-08-13

English

Subject field(s)
  • Anti-pollution Measures
  • Motor Vehicles and Bicycles
CONT

The oxidation or two-way catalytic converter reduces hydrocarbons (HC) and carbon monoxide (CO) by converting them into water vapor (H2O) and carbon dioxide (CO2). The nitrogen oxide (NOx) remains untouched and is emitted as exhaust.

OBS

The dual-bed or three-way catalyst, consisting of two chambers, reduces hydrocarbons (HC), carbon monoxide (CO) and nitrogen oxides (NOx) by converting them to water vapour (H2O), carbon dioxide (CO2) and nitrogen (N2).

Key term(s)
  • oxydation catalytic converter
  • oxydation catalyst
  • oxidation catalyst system

French

Domaine(s)
  • Mesures antipollution
  • Véhicules automobiles et bicyclettes
OBS

Dispositif qui traite les imbrûlés (HC) et le monoxyde de carbone (CO) au moyen de pastilles recouvertes d'un métal noble (platine, palladium, rhodium) agissant comme catalyseur pour produire des produits inoffensifs (vapeur d'eau de gaz carbonique).

Spanish

Save record 1

Record 2 1999-10-06

English

Subject field(s)
  • Equipment (Chemistry)

French

Domaine(s)
  • Équipement (Chimie)
CONT

Certains oxydes peuvent catalyser en même temps des réactions redox (oxydation, déshydrogénation) et des réaction acido-basiques (déshydratation, isomérisation) : ce sont des catalyseurs bifonctionnels (reformage des essences, synthèse du butadiène).

OBS

Les renseignements provenant de la source NUT-3 (Véhicules automobiles, lexique anglais-français) sont reproduits avec l'autorisation de l'Office des Nations-Unies à Genève.

Spanish

Save record 2

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