Low Emission Diesel Engines

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-01ER83167
Agency Tracking Number: 65445S01-II
Amount: $750,000.00
Phase: Phase II
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
325 Water Street, Wilmington, DE, 19804
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Stuart Nemser
 (302) 999-7996
Business Contact
 Nadine Cragg-Laster
Title: 65445
Phone: (302) 999-7996
Email: nlester@compactmembrane.com
Research Institution
65445 Consumption of diesel fuel and gasoline have led to significant dependence on foreign fuel as well as increased carbon dioxide emissions with the associated concern for global warming. Diesel engines are much more fuel efficient than spark/gasoline engines, but unfortunately diesel engines produce high NOx emissions. This has been addressed by a process known as exhaust gas recycle (EGR), which lowers NOx emissions by 50%; however, it also reduces engine life and puts significant stress on the cooling system. This project will utilize high productivity membranes in a combination with modest engine design changes to produce nitrogen-enriched air (cold/clean ERG) with overall NOx emissions reduced by 85% and little change in other emissions. The productivity from these membranes is sufficiently high to allow systems to be placed under the hoods of trucks. Using a single cylinder engine, Phase I demonstrated that the synergy of nitrogen enriching membranes and the unique combustion process can lead to 80-90% NOx reduction with no significant change in other emissions. In parallel, a viable route to large-scale membrane manufacture was established. Phase II will improve the membrane fabrication and engine design. The combustion process will be assessed over the full engine map and validated as a system. Commercial Applications and Other Benefits as described by the awardee: The initial commercial focus will be for heavy duty diesel trucks that can meet the EPA regulation of 80-90% NOx reductions. Passenger vehicles should be a second tier opportunity.

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

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