Union Pacific Corporation Company Profile | UNP Company Information

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April 17, 2006 Building on its reputationb as having the most environmentally friendlyt locomotive fleet in the United Union Pacific today announced it is testing technologies to reduce diesel engine emissions in olderrailroads locomotives. Through collaboration with staff at the National Vehicler and Fuel Emissions Laboratory ofthe U.S. Environmentall Protection Agency (EPA) from Ann Arbor, Mich., Unionn Pacific is providing a 3,800-horsepowert SD60M locomotive built in January to serve as the first freight locomotive in Northy America to be equipped with a set of oxidation catalystor "oxicat"" devices manufactured by the MIRATECbH Corporation of Tulsa, Okla.
These devices serve as flow-throughy catalytic converters. As the diesel engine'es exhaust flows through these microscopic particles knownas "particulate matter generated by the diesel combustion process will be converte into water and carbon dioxide. In a similar experiment, a 1,500-horsepowet yard switching locomotive built inNovember 1982, also provided by Union Pacific, will be retrofitterd with a diesel particulate filter or "DPF. The DPF initiative is the result ofa four-yeart program, funded in part by Union to assess clean-engine technologies for locomotivew applications. The DPF acts as a filter that uses high-temperaturre silicon carbide blocks to trap particulate matter inthe ...