Fuel-air premixing system for a catalytic combustor

Details Fuel-air premixing system for a catalytic combustor Fuel-air premixing system for a catalytic combustor

2006-08-22

2006-08-22

Freay, Charles G. (Department: 3746)

Power plants

Combustion products used as motive fluid

Process

C060S723000, C060S737000, C060S748000

Reexamination Certificate

active

07093445

ABSTRACT:
Disclosed is a unique fuel and air premixing system for a gas turbine catalytic combustion system. The mixer utilizes a multi-channel counter-rotating swirler with aerodynamically shaped fuel pegs located upstream of the swirler. The premixing system provides the downstream catalyst with a fuel-air mixture sufficiently uniform for proper catalyst operation and wide operating limits. Features have been incorporated in the system to make it resistant to flameholding.

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International Search Report mailed on Sep. 11, 2003, for PCT patent application No. PCT/US03/17415 filed on May 30, 2003, 3 pages.
Corr, R. et al. “Development of a Fuel and Air Mixer for an 11MW Gas Turbine Catalytic Combustion System,”Proceedings of the ASME Turbo Expo 2002, (Jun. 3-6, 2002) Amsterdam, The Netherlands, pp. 609-617.

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