Catalytic combustor with lean direct injection of gas fuel for l

Details Catalytic combustor with lean direct injection of gas fuel for l Catalytic combustor with lean direct injection of gas fuel for l

1995-12-22

1998-10-27

Freay, Charles G.

Power plants

Combustion products used as motive fluid

Combustion products generator

60733, 60738, 60739, 60746, F02C 100, F02G 300

Patent

active

058264299

ABSTRACT:
A combustor for a gas turbine includes a diffusion flame combustion zone, a catalytic combustion zone and a post-catalytic combustion zone. At start-up or low-load levels, fuel and compressor discharge air are supplied to the diffusion flame combustion zone to provide combustion products for the turbine. At mid-range operating conditions, the products of combustion from the diffusion flame combustion zone are mixed with additional hydrocarbon fuel for combustion in the presence of a catalyst in the catalytic combustion zone. Because the fuel/air mixture in the catalytic reactor bed is lean, the combustion reaction temperature is too low to produce thermal NO.sub.x. Under high-load conditions, a lean direct injection of fuel/air is provided in a post-catalytic combustion zone where auto ignition occurs with the reactions going to completion in the transition between the combustor and turbine section. In the post-catalytic combustion zone, the combustion temperature is low and the residence time in the transition piece is short, hence minimizing thermal NO.sub.x.

REFERENCES:
patent: 2944388 (1960-07-01), Bayer
patent: 3928961 (1975-12-01), Pfefferle
patent: 4730453 (1988-03-01), Benoist et al.
patent: 4794753 (1989-01-01), Beebe
patent: 4845952 (1989-07-01), Beebe
patent: 5003768 (1991-04-01), Kappler et al.
patent: 5161366 (1992-11-01), Beebe
patent: 5395235 (1995-03-01), Lan-Sun Hung

Affiliated with

Also associated with

Rating

Catalytic combustor with lean direct injection of gas fuel for l does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catalytic combustor with lean direct injection of gas fuel for l, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalytic combustor with lean direct injection of gas fuel for l will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1605679