- A Catalytic Converter
is a device used in automobiles to convert exhaust gas emitted from an
incomplete combustion such as CO, NO and other hydrocarbons that are
dangerous to health
and environment into more environmentally friendly CO2, N2 and H2O
- A catalytic converter
consists of an insulated chamber containing a porous bed, or substrate,
coated with catalytic material through which hot exhaust gas must pass
before being discharged into the air - A catalytic converter
is
comprised of the catalyst called “three-way catalyst”, which are
Platinum (Pt), Palladium (Pd)
and Rhodium (Rh), coated on a honeycomb ceramic support.
- The
three-way-catalyst causes
the oxidation and reduction reaction. It reacts with the heated exhaust
gas and convert into
CO2, N2, H2O the honeycomb ceramic support is the structure where the
three-way catalyst
coats on its surface so that the catalyst has high surface are in
contact with the gas. -
Three-Way Catalysts (TWC)
are the main technology used to control emissions from petrol engines.
The catalyst uses a ceramic or metallic substrate with an active coating
incorporating alumina, ceria and other oxides and combinations of the
precious metals - platinum, palladium and rhodium. Three-way catalysts
operate in a closed-loop system including a lambda or oxygen sensor to
regulate the air:fuel ratio on petrol engines
- Catalyst poisoning
occurs when the catalytic converter is exposed to exhaust containing
substances that coat the working surfaces, encapsulating the catalyst so
that it cannot contact and treat the exhaust. The most notable
contaminant is lead, so vehicles equipped with catalytic converters can
only be run on unleaded gasoline.
- In the construction
of converters
manufacturers use ceramic extruding systems or (less frequently)
metal-forming processes to generate honeycomb structures. After
formation, these structures have their inner channels coated with a
catalyst material before they are canned for deployment on an automobile
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General
Information
- About Catalytic Converters
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Product Profile
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Technical Notes
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Emission control catalysts
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Concentrations of Carbon Monoxide
Companies
- Company & Manufacturing Facilities
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Company Catalogue
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Company in Canada
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Company in
Catalysts field
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Company in Converter scrap business
Consultant
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Company - catalytic exhaust emissions solutions
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Consultant USA
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German Organization
Design
- Design Study
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Brazed Metal Support Structure
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Material Selection for the exhaust manifolds
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Design for
two wheelers
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Design of the
standard substrate module
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Design for
optimization of exhaust after treatment systems
Product
- Emission
Control Products
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Close-coupled Catalytic Converter
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Catalytic converters for petrol engines
- Exhaust Product
Line
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Diesel Exhaust catalytic converters
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Stainless Steel
Catalytic Converters
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Performance
- Chinese company &
products
Suppliers
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List of manufacturers & suppliers
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Substrates for metal catalyst
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Tier-One supplier
- Chinese Supplier
Guide
- Alumina,
Ceria, Zirconia composite oxide for three way catalyst
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Catalytic
Converter Labeling
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Newsletter
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FAQ - Thefts
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Regulations
- Emission legislation - Europe
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Emission
Control - 2-3 wheelers
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Aftermarket catalytic converters
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Obtaining exemptions
in the after market
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California regulations
Testing
- Evaluation Procedures
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Evaluate the performance of a catalytic
converter
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Thermal Analysis & Testing
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Determination of
Platinum, Palladium, Rhodium and Titanium
Technology
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Technology Profile
- Plasma Fuel
Reformer
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Coating of Catalyst
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Production of catalytic converter cans
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Canning Method
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Metallic Honey Comb
Substrates
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Manufacturing
steps - brief
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Z-
Engine & Z - Process
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The gadget that cuts
harmful exhaust emissions -
Engineered Solutions for Exhaust Emissions
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Manufacturing Variations
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Method of Manufacturing Catalytic
Converter - US Patent
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Patent
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Technology Source
Project
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Sample Project proposal
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Production Machinery
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Platinum
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Chinese machinery
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Cutting machine
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Inspection
Report
- Platinum
Group of Metals
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Palladium
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Catalytic Converter Thefts
Market
- Whole Sale
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Catalytic Converter Recycling - Buyers Guide
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Scrap Catalytic
Converter Recycling Business
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