Fast Lightoff Catalytic Converter

EPA Contract Number: 68D00048
Title: Fast Lightoff Catalytic Converter
Investigators: Pfefferle, William
Small Business: Precision Combustion, Inc.
EPA Contact: Manager, SBIR Program
Phase: II
Project Period: September 1, 1990 through July 1, 1993
Project Amount: $150,000
RFA: Small Business Innovation Research (SBIR) - Phase II (1990) Recipients Lists
Research Category: Air Quality and Air Toxics , SBIR - Air Pollution , Small Business Innovation Research (SBIR)


Transportation sources remain the primary source of man- made hydrocarbon (HC) and carbon monoxide (CO) emis- sions. Most of the remaining HC and CO exhaust emissions from new automobiles occurs shortly after starting, before the exhaust has warmed the catalytic converter to lightoff temperature. Precision Combustion, Inc. is developing a low cost, fast lightoff, electrically heated metal monolith catalytic converter directed towards eliminating this gap in emissions control while improving conversion effectiveness and long term durability.

Phase I laboratory configuration testing showed that a low power sufficiently rapid heat-up can be achieved for full conversion immediately after engine start-up. CO and ad- justed non-methane hydrocarbon conversions were in excess of 99%. Preliminary automotive and durability testing was successful.

Phase II will be directed towards system development, involving design, construction and testing of one or more commercially feasible prototypes, and culminating in Fed- eral Test Procedure (FTP) tests of an automotive prototype by the New York State Automotive Emissions Laboratory.

Supplemental Keywords:

RFA, Scientific Discipline, Air, Toxics, Sustainable Industry/Business, air toxics, cleaner production/pollution prevention, Environmental Chemistry, Sustainable Environment, HAPS, Technology for Sustainable Environment, mobile sources, Chemistry and Materials Science, Engineering, Engineering, Chemistry, & Physics, Environmental Engineering, ambient air quality, engine exhaust, automobile engine, fast lightoff catalytic converter, air pollutants, hydrocarbon, ambient air, carbon monoxide (CO), automotive emissions, automotive exhaust, automotive combustion, automobile engine exhausts, metal monolith catalytic converter, hydrocarbon (HC), carbon monoxide, electrically heated catalyst, hydrocarbons, start-up emissions, cold start, carbon monoxide , exhaust, catalytic combustion

Progress and Final Reports:

  • Final