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Reduced NOx/Hydrocarbon Emissions via Oxygen Enriched Lean Burn Engines

Award Information
Agency: Environmental Protection Agency
Branch: N/A
Contract: N/A
Agency Tracking Number: 37901
Amount: $225,000.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 1998
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
325 Hampton Road
Wilmington, DE 19803
United States
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Dr. Stuart Nemser
 () -
Business Contact
 Dr. Stuart Nemser
Phone: (302) 984-1762
Research Institution

Lean burn spark engines are a promising technique to further reduce both NOx and hydrocarbon/carbon monoxide (HC/CO) engine emissions. Higher lean burn levels improve HC/CO oxidation while simultaneously reducing NOx formation. The NOx reduction is due to cooler flame temperatures. While the lean burn limit (beyond which combustion is poor) restricts further emission reductions, the use of oxygen enriched air (OEA) significantly extends the lean burn limit and further reduces emissions. To date, no compact supply of OEA has been available to extend the lean burn limit. Compact Membrane Systems, Inc., has developed high gas flux OEA membranes with 30 times the productivity of existing membranes. This allows compact portable OEA systems to extend automobile lean burn limits and further reduce NOx/HC/CO emissions. In Phase I, feasibility of the membranes will be demonstrated on a small (5-10 hp) engine. The goal of the project is a 40% reduction in NOx and a 15% reduction in HC emissions.

* Information listed above is at the time of submission. *

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