Emissions Reduction and Improved Fuel Economy Performance From a Bimetallic Platinum/Cerium Diesel Fuel Additive At Ultra-Low Dose Rates

Document Number: 2000-01-1934

Date Published: June 2000

Author(s):
James M. Valentine - Clean Diesel Technologies Inc.
J. D. Peter-Hoblyn - Clean Diesel Technologies Inc.
G. K. Acres - Clean Diesel Technologies Inc.

Abstract:
Results of engine bench tests and vehicle programs on light-duty and heavy- duty diesels have confirmed that a bimetallic platinum and cerium diesel fuel borne catalyst (FBC) can reduce engine out emissions and improve the performance of diesel oxidation catalysts and diesel particulate filters. Particulate emission reductions of up to 25% for the fuel borne catalyst alone, up to 50% with the FBC and oxidation catalyst and in excess of 95% with the FBC and a diesel particulate filter have been documented. Vehicle and engine bench tests confirm regeneration of filters at exhaust gas temperatures as low as 280-C-320-C. Field trials on commercial fleets have confirmed engine bench test fuel economy improvements on the order of 6%. Measurements have also confirmed that ultra-low additive dose rates of 4-8ppm do not lead to increases in ultra-fine particulate emissions and significantly reduce ash loading to diesel particulate filters. Combined with exhaust gas recirculation, the fuel borne catalyst and a diesel particulate filter have demonstrated NOx + HC and particulate emissions below 2.5 g/bhp-hr and 0.01 g/bhp-hr. Performance has been demonstrated on both 350 ppm and 50 ppm sulfur fuels.

File Size: 984K
Product Status: In Stock

See other papers presented at CEC/SAE Spring Fuels & Lubricants Meeting & Exposition, June 2000, Paris, FRANC, Session: Advanced Emissions Aftertreatment for Diesel Applications

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