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Evaluation of Different Resistively Heated Catalyst Technologies
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 01, 1991 by SAE International in United States
Annotation ability available
Fresh, resistively heated quick light-off catalysts were obtained from two industry sources and evaluated on a neat methanol-fueled vehicle. Catalyst air assist was used, and a larger volume main converter was also added behind each quick light-off catalyst. The objective of this testing was to reduce excess unburned fuel, carbon monoxide, and formaldehyde emissions over the cold start portion (Bag 1) of the Federal test procedure (FTP) at 24°C.
The lowest emission rates occurred with the use of a two-catalyst system (resistively heated/air assisted quick light-off catalyst and conventional main catalyst). Bag 1 conversion efficiencies in excess of 99 percent from no-catalyst levels were noted for unburned fuel and formaldehyde, and 96 percent for carbon monoxide with these two catalyst systems.
CitationHellman, K., Piotrowski, G., and Schaefer, R., "Evaluation of Different Resistively Heated Catalyst Technologies," SAE Technical Paper 912382, 1991, https://doi.org/10.4271/912382.
- “Analysis of the Economic and Environmental Effects of Methanol As An Automotive Fuel,” U.S. EPA, Office of Mobile Sources September 1989
- “Development of a Direct Injected Neat Methanol Engine For Passenger Car Applications,” SAE Paper 901521 Pischinger, F. et al. August 1990
- 1975 Federal Test Procedure Code of Federal Regulations
- “Recent Developments In Electrically Heated Metal Monoliths,” SAE Paper 900503 Whittenberger, W. A. Kubsh J. E. February 1990
- “Resistive Materials Applied To Quick Light-Off Catalysts,” SAE Paper 890799 Hellman, Karl H. et al. March 1989
- “A Resistively Heated Catalytic Converter With Air Injection For Oxidation Of Carbon Monoxide And Hydrocarbons At Reduced Ambient Temperatures,” Piotrowski, Gregory K. September 1989
- “Evaluation Of A Resistively Heated Metal Monolith Catalytic Converter On A Gasoline-Fueled Vehicle,” Piotrowski, Gregory K. December 1988
- “Evaluation of A Resistively Heated Metal Monolith Catalytic Converter On A M100 Neat Methanol-Fueled Vehicle,” Blair, D. M. Piotrowski G. K. August 1988
- “Recent Results From Prototype Vehicle And Emission Control Technology Evaluation Using Methanol Fuel,” SAE Paper 901112 Hellman, Karl H. Piotrowski G. K. May 1990
- “Evaluation of Metallic And Electrically Heated Metallic Catalysts On A Gasoline Fueled Vehicle,” SAE Paper 900504 Hurley R. G. et al. February 1990
- “Electrically Heated Metal Substrate Durability,” SAE Paper 910613 Whittenberger, W. A. Kubsh J. E. February 1991
- “Electrically Heated Catalyst System Conversions On Two Current-Technology Vehicles,” SAE Paper 910612 Heimrich, M. J. et al. February 1991
- “Formaldehyde Emission Control Technology For Methanol-Fueled Vehicles,” SAE Paper 902118 Smith L. R. et al. 1990
- Sales Literature Electrically Heated Catalytic Converter Camet Co. Hiram, OH
- Formaldehyde Measurement In Vehicle Exhaust At MVEL, Memorandum Gilkey, R. L. OAR, OMS, EOD Ann Arbor, MI 1981
- “Formaldehyde Sampling From Automobile Exhaust: A Hardware Approach,” Pidgeon, W. July 1988
- “Sample Preparation Techniques For Evaluating Methanol and Formaldehyde Emissions From Methanol-Fueled Vehicles and Engines,” Pidgeon, W. Reed M. September 1988
- “Catalysts for Methanol Vehicles,” SAE Paper 872052 Murrell, J. D. Piotrowski G. K. November 1987
- “Air Injection to an Electrically-Heated Catalyst for Reducing Cold-Start Benzene Emissions from Gasoline Vehicles,” SAE Paper 902115 Heimrich, M. J. 1990