Union Pacific Corporation Company Profile | UNP Company Information

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April 17, 2006 Buildintg on its reputation as havingf the most environmentally friendly locomotive fleetf in theUnited States, Unioj Pacific today announced it is testingg technologies to reduce diesel engine emissions in older railroad Through collaboration with staff at the National Vehicle and Fuel Emissions Laboratory of the U.S. Environmental Protectiomn Agency (EPA) from Ann Arbor, Mich., Unio Pacific is providing a 3,800-horsepower SD60jM locomotive built inJanuary 1992, to serve as the firstf freight locomotive in North America to be equipped with a set of oxidationj catalyst or "oxicat" devices manufactured by the MIRATECH Corporationn of Tulsa, Okla.
These devices serve as flow-through catalytic converters. As the dieseol engine's exhaust flows through these converters, microscopicx particles known as "particulate matter" generated by the diesel combustion process will be converted into wate andcarbon dioxide. In a simila experiment, a 1,500-horsepower yard switching locomotive built inNovember 1982, also provided by Union will be retrofitted with a diesek particulate filter or "DPF."" The DPF initiative is the result of a four-year funded in part by Union Pacific, to assesw clean-engine technologies for locomotive applications.
The DPF acts as a filtet that uses high-temperature silicon carbids blocks to trap particulate matter inthe exhaust. ...