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As new regulations become more stringent and inclusive of additional requirements, utilities are being forced to modify the operation of their plants. Many are looking to their SCR catalyst to help meet these challenges. Choosing the optimum catalyst is an increasingly important decision because it not only ensures that utilities will comply with current regulations but it can also give utilities the flexibility to meet those that follow. Catalyst manufacturers continue to develop new catalysts that enhance the performance of the SCR, providing low cost solutions that give the required flexibility while minimizing the operational impact to the unit. This presentation will review the various factors that are part of the catalyst design and selection process including the catalyst performance requirements and the anticipated operating conditions. Discussion topics will include low load / low temperature operational impacts, SO2 to SO3 conversion minimization, mercury oxidation promotion on low halogen fuels, handling of large particle ash, and more. Finally, the operational and economic impacts of catalyst management programs will be reviewed.
Revision Date: 5/12/2011
Tags: 221112 - Fossil Fuel 化石燃料, Hitachi Power Systems America, Selective Catalytic Reduction, Air Quality, USA
Hitachi continues to develop new catalysts that enhance the performance of the SCR with low cost solutions, minimize the operational impact to the unit, and provide the flexibility required. Offering the SCR system with the scrubber allows the company to make system guarantees on mercury control.
Revision Date: 10/22/2010
Tags: 221112 - Fossil Fuel 化石燃料, Hitachi Power Systems America, Catalyst, Regeneration