Microlith® Fast Light Off Catalytic Converter

Microlith® technology offers multiple benefits for automotive and other internal combustion engine aftertreatment applications. The low thermal mass is especially important for quick catalyst lightoff in order to deal with automotive cold start emissions. The PCI catalytic converter can achieve greater conversion effectiveness per unit size material, with up to 20-fold reduction in volume and weight, as well as reduction in precious metal catalyst requirements, compared to long channel monoliths.

Converter
Small size and low weight, together with good thermal shock tolerance allow ease of integration and close placement to the engine for even faster lightoff. In summary, the result is a catalytic converter design with both substantial cost advantage and superior emissions performance than conventional honeycomb ceramic or metal monolith converter technologies.

Hot Vibe

The combination in a passive converter of faster lightoff, smaller size, lower weight, increased effectiveness and lower cost is attracting significant interest from the automotive and marine industries. Prototypes have been tested with major U.S. engine manufacturers. A two stroke application of the technology is also being developed as well as a formaldehyde oxidation catalyst for reciprocating natural gas engines. Test results conducted on a 1.9L Ford Escort, in collaboration with Ford Motor Co., demonstrated emissions reduction that exceeds the Ultra Low Emission Vehicle standards (ULEV) (SAE Technical Paper # 971023). Durability has been proven through multiple "hot vibe" tests (950oC,28g's, 100hz) and engine aging tests.

Download a brochure about Microlith® Catalytic Converter for LEV/ULEV with auto emission test results, configurations and physical characteristics.

Click on the link below to learn more about Microlith® catalytic converters.

Development and Evaluation of Advanced Catalyst Technology for ULEV Emissions Levels with Gasoline Fueled Vehicles.

Additional information can be obtained from the following published papers:

“Laboratory Evaluation of Ultra-Short Metal Monolith Catalyst” SAE 980672.

"Development and Performance of Microlith® Light-off Preconverters for LEV/ULEV." SAE 971023.

"Rapid Thermal response Catalyst for Treatment of Automotive Exhaust" Materials Research Society, Symposium Proc. Vol. 454, 1997.

"Reduction of Formaldehyde Emissions from Pipeline Compressor Drivers" GRI-02/1035, Gas Research Institute.

Please contact PCI for more information.

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