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Title: Low NO/sub x/ heavy fuel combustor concept program. Phase 1A: combustion technology generation coal gas fuels. Final report

Technical Report ·
OSTI ID:5063910

Combustion tests of two scaled burners using actual coal gas from a 25 ton/day fluidized bed coal gasifier are described. The two combustor configurations studied were a ceramic lined, staged rich/lean burner and an integral, all metal multiannual swirl burner (MASB). The tests were conducted over a range of temperature and pressures representative of current industrial combustion turbine inlet conditions. Tests on the rich lean burner were conducted at three levels of product gas heating values: 104, 197 and 254 btu/scf. Corresponding levels of NO/sub x/ emissions were 5, 20 and 70 ppmv. Nitrogen was added to the fuel in the form of ammonia, and conversion efficiencies of fuel nitrogen to NO/sub x/ were on the order of 4 percent to 12 percent, which is somewhat lower than the 14 percent to 18 percent conversion efficiency when SRC-2 liquid fuel was used. The MASB was tested only on medium btu gas (220 to 270 btu/scf), and produced approximately 80 ppmv NO/sub x/ at rated engine conditions. Both burners operated similarly on actual coal gas and erbs fuel, and all heating values tested can be successfully burned in current machines.

Research Organization:
Westinghouse Electric Corp., Concordville, PA (USA). Combustion Turbine Systems Div.
OSTI ID:
5063910
Report Number(s):
NASA-CR-165614; DOE/NASA-0146-2
Country of Publication:
United States
Language:
English

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