Combustor study of the deactivation of a three-way catalyst by lead and manganese
Technical Report
·
OSTI ID:5723634
The activity and durability of a platinum-rhodium automotive three-way catalyst were investigated as a function of lead and manganese fuel levels using a pulse-flame combustor. Total hydrocarbons, carbon monoxide, and nitric oxide conversions and three-way (HC/CO/NO) conversion efficiency windows were determined for approximately 24,000 combustor-simulated miles. The window for 80% HC/CO/NO efficiency disappeared at approximately 9,000 miles, 13,500 miles, and 4,500 miles for 0.5 g of lead per gallon of fuel, 0.0625 g of manganese per gallon of fuel, and a combined manganese and lead misfueling study, respectively. The catalyst's nitric oxide reduction activity displayed the greatest sensitivity to catalytic poisoning with both lead and manganese fuels.
- Research Organization:
- Northrop Services, Inc., Research Triangle Park, NC (USA)
- OSTI ID:
- 5723634
- Report Number(s):
- PB-85-161222/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330700* -- Advanced Propulsion Systems-- Emission Control
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYTIC CONVERTERS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
DEACTIVATION
ELEMENTS
EQUIPMENT
HYDROCARBONS
LEAD
MANGANESE
METALS
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
PLATINUM
PLATINUM METALS
POLLUTION ABATEMENT
POLLUTION CONTROL EQUIPMENT
RHODIUM
TRANSITION ELEMENTS
330700* -- Advanced Propulsion Systems-- Emission Control
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYTIC CONVERTERS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
DEACTIVATION
ELEMENTS
EQUIPMENT
HYDROCARBONS
LEAD
MANGANESE
METALS
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
PLATINUM
PLATINUM METALS
POLLUTION ABATEMENT
POLLUTION CONTROL EQUIPMENT
RHODIUM
TRANSITION ELEMENTS