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New Catalytic Combustion Technology for Very Low Emissions Gas Turbines PUBLIC ACCESS

[+] Author Affiliations
R. A. Dalla Betta, J. C. Schlatter, S. G. Nickolas, D. K. Yee

Catalytica, Incorporated, Mountain View, CA

T. Shoji

Tanaka Kikinzoku Kogyo K. K., Kanagawa, Japan

Paper No. 94-GT-260, pp. V003T06A015; 6 pages
doi:10.1115/94-GT-260
From:
  • ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations
  • The Hague, Netherlands, June 13–16, 1994
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7885-9
  • Copyright © 1994 by ASME

abstract

A catalytic combustion system has been developed which feeds full fuel and air to the catalyst but avoids exposure of the catalyst to the high temperatures responsible for deactivation and thermal shock fracture of the supporting substrate. The combustion process is initiated by the catalyst and is completed by homogeneous combustion in the post catalyst region where the highest temperatures are obtained. This has been demonstrated in subscale test rigs at pressures up to 14 atmospheres and temperatures above 1300°C (2370°F). At pressures and gas linear velocities typical of gas turbine combustors, the measured emissions from the catalytic combustion system are NOx < 1 ppm, CO < 2 ppm and UHC < 2 ppm, demonstrating the capability to achieve ultra low NOx and at the same time low CO and UHC.

Copyright © 1994 by ASME
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