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23 April 2010

Amtrack trials first cow-powered train

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Biodiesel made from beef byproducts fuels rail operator's first green train, cutting carbon emissions and improving air quality

US rail operator Amtrak may have given the term "cattle car" a whole new meaning with the first test of a biodiesel train that runs on beef byproducts.

Operating on a $274,000 grant from the Federal Railroad Administration, the state-owned rail company has begun operating its daily Heartland Flyer train, travelling between Oklahoma City and Forth Worth, using B20 biodiesel fuel.

The fuel, which mixes 80 per cent diesel with 20 per cent biofuel, cuts both hydrocarbon and carbon monoxide emissions by 10 per cent, according to the company, which said that the fuel also reduces particulates by 15 per cent, and sulphates by 20 per cent compared to standard diesel fuels.

The biodiesel, which was refined from beef byproducts provided by a Texas supplier, will run as a 12-month experiment, during which Amtrak will collect data on emissions, and on the impact of the fuel on mechanical parts.

Although technically, the fuel mix can run in unmodified trains, the locomotive was fitted with new engine assemblies so that detailed measurements could be taken to establish the effect of the fuel on the engine.

The impact of biofuel blends on engines can vary dramatically, with some biofuels leading to increased wear and tear, while others tend to "burn cleaner " and actually lead to improved engine performance and durability.


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