• Science: Environment: Air Quality  (666)
• Science: Environment: Air Quality: Products and Services: Equipment and Supplies: Vehicle  (4)
• Shopping: Vehicles: Parts and Accessories: Engine: Fuel  (27)

• Association for Emissions Control by Catalyst - Information on catalytic converters and related topics, from the international association of European companies making technologies for automobile exhaust emissions control.
• Canwell Enviro-Industries Ltd. - Specialize in the removal of H2S (hydrogen sulfide) from sales gas, fuel gas, vent gas, flare gas, sour condensate, oil and water applications.
• Compu-NOx - Describes and offers a new combustion control technology that provides an alternative to low NOx burner retrofit for attaining compliance with emission standards on industrial and power utility boilers.
• Environmental Energy Services (EES) - Fuel additives, advanced treatment systems, gas analyzers, and other products and services for enhancing combustion efficiency and reducing emissions.
• Pollution Controls for Power Plants - U.S. DOE program to develop new technologies for reducing air pollution and from existing coal-powered electric generation stations.
• Reinhold Environmental - Seminars, users' groups, newsletter, and workshops on utility industry environmental concerns, particularly air emissions from combustion.
• Rentar Fuel Catalyst - Describes a patented technology to reduce fuel consumption and emissions. (Fuel catalyst primarily for diesel engines in trucks, stationary engines, and large diesel engine vessels).

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