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Johnson Matthey Bringing SCR To The Big Apple

Posted on April 5, 2011

Johnson Matthey has received a contract by the Port Authority of New York and New Jersey, U.S.A., and the New York City Department of Transportation to provide a selective catalytic reduction (SCR) emission control system for the John A. Noble Staten Island ferry. The John A. Noble has been in operation since 1986.

The project is part of ongoing efforts to reduce NOx emissions in the New York City metropolitan area as an offset to the emissions associated with the harbor deepening and dredging project, which will occur over the next decade. Johnson Matthey’s SCR system is designed to reduce NOx and CO emissions by more than 90%, the company said.

The 500 ton, 59.7 m John A. Noble is capable of carrying nearly 1300 passengers and is powered by two Caterpillar 3516 diesel engines. The ferry was built by Derecktor Shipyards, Bridgeport, Connecticut, U.S.A., which will install the SCR system during routine maintenance scheduled for completion in May. M.J. Bradley, Manchester, New Hampshire, U.S.A., is the engineering consulting firm overseeing the project.

Using urea as the reducing agent, the John A. Noble SCR system includes a Johnson Matthey oxidation catalyst, SCR injection system, piping and urea ammonia grid. The SCR system was designed to physically fit into the ferry’s tight quarters, Johnson Matthey said. Two large urea holding tanks will be mounted on either side of the boat for better balance.

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