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Catalytic Combustion Technology Development for Gas Turbine Engine Applications

  • Robert N. Carter (a1), Lance L. Smith (a1), Hasan Karim (a1), Marco Castaldi (a1), Shah Etemad (a1), George Muench (a1), R. Samuel Boorse (a1), Paul Menacherry (a1) and William C. Pfefferle (a1)...

Catalytic combustion is one means of meeting increasingly strict emissions requirements for ground-based gas turbine engines for power generation. In conventional homogeneous combustion, high flame temperatures and incomplete combustion lead to emissions of oxides of nitrogen (NOx) and carbon monoxide (CO), and in lean premixed systems unburned hydrocarbons (UHC). However, catalyst-assisted reaction upstream of a lean premixed homogeneous combustion zone can increase the fuel/air mixture reactivity sufficiently to provide low CO/UHC emissions. Additionally, catalytic combustion extends the lean limit of combustion, thereby minimizing NOx formation by lowering the adiabatic flame temperature. An overview of this technology is presented including discussion of the many materials science and catalyst challenges that catalytic combustion poses ranging from the need for high temperature materials to catalyst performance and endurance. Results of ongoing development efforts at Precision Combustion, Inc. (PCI) are presented including modeling studies and experimental results from both bench-scale and combustor-scale studies.

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[1] For a more detailed description of gas turbine combustion see for example: Lefebvre, A.H., Gas Turbine Combustion, (Taylor and Francis, Bristol, PA) 1983.
[2] Heck, R.M. and Farrauto, R.J., Catalytic Air Pollution Control, Commercial Technology, (Van Nostrand Reinhold, New York, 1995) Chapters 10 & 11.
[3] Kolaczkowski, S.T., Trans. IChemE, 73, 168 (1995).
[4] Lee, J.H., Trimm, D.L., Fuel Proc. Technol., 42, 339 (1995).
[5] Betta, R.A. Dalla, Catal. Today, 35, 129 (1997).
[6] Carter, R.N., Roychoudhury, S., Muench, G., Karim, H., Pfefferle, W.C., Mat. Res. Soc. Symp. Proc., 454, 273 (1997).
[7] Roychoudhury, S., Muench, G., Bianchi, J.F., Pfefferle, W.C., and Gonzales, F., SAE Paper 971023, SAE International, Warrendale, PA, 1997.
[8] Kraemer, G., Strickland, T.R., Pfefferele, W.C., and Ritter, J., Proceedings of the International Joint Power Generation Conference, EC-Vol. 5, Book No. GO1072, 1997.
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  • ISSN: -
  • EISSN: 1946-4274
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