Catalyzed diesel exhaust particulate filter
Patent
·
OSTI ID:5233593
This patent describes a catalyzed diesel exhaust particulate filer. It comprises: a high temperature resistant filter element having porous walls and being dimensioned and configured to filter particulates present in diesel engine exhaust gas flowed through the catalyzed filter and collect such particulates on the surfaces of the porous walls, the surfaces of the walls having thereon a catalyst consisting essentially of a mixture of at least one platinum group metal and at least one alkaline earth metal oxide, which catalyst lowers the temperature at which the collected particulates are ignited and combustion thereof is initiated, whereby the particulates are continuously removed from the filter by burning.
- Assignee:
- Engelhard Corp., Iselin, NJ (United States)
- Patent Number(s):
- A; US 5100632
- Application Number:
- PPN: US 7-487555
- OSTI ID:
- 5233593
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020800 -- Petroleum-- Waste Management
33 ADVANCED PROPULSION SYSTEMS
330705* -- Emission Control-- Particulates
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR FILTERS
AIR POLLUTION CONTROL
AIR POLLUTION MONITORING
ALKALINE EARTH METALS
CATALYSTS
CATALYTIC CONVERTERS
CATALYTIC EFFECTS
CHEMICAL COMPOSITION
CONTROL
DIESEL ENGINES
DIESEL FUELS
ELEMENTS
ENERGY SOURCES
ENGINES
EQUIPMENT
EXHAUST GASES
FILTERS
FLUIDS
FOSSIL FUELS
FUELS
GAS OILS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
MANAGEMENT
METALS
MONITORING
PARTICLES
PARTICULATES
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PLATINUM
PLATINUM METALS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
TRANSITION ELEMENTS
WASTE MANAGEMENT
WASTES
020800 -- Petroleum-- Waste Management
33 ADVANCED PROPULSION SYSTEMS
330705* -- Emission Control-- Particulates
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR FILTERS
AIR POLLUTION CONTROL
AIR POLLUTION MONITORING
ALKALINE EARTH METALS
CATALYSTS
CATALYTIC CONVERTERS
CATALYTIC EFFECTS
CHEMICAL COMPOSITION
CONTROL
DIESEL ENGINES
DIESEL FUELS
ELEMENTS
ENERGY SOURCES
ENGINES
EQUIPMENT
EXHAUST GASES
FILTERS
FLUIDS
FOSSIL FUELS
FUELS
GAS OILS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
MANAGEMENT
METALS
MONITORING
PARTICLES
PARTICULATES
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PLATINUM
PLATINUM METALS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
TRANSITION ELEMENTS
WASTE MANAGEMENT
WASTES