Bench Scale Testing of Low-NOx LBG Combustors

[+] Author and Article Information
W. D. Clark, B. A. Folsom, W. R. Seeker, C. W. Courtney

Energy and Environmental Research Corporation, Santa Ana, Calif. 92705

J. Eng. Power 104(1), 120-128 (Jan 01, 1982) (9 pages) doi:10.1115/1.3227241 History: Received December 09, 1980; Online September 28, 2009


The high efficiencies obtained in a combined gas-turbine/steam-turbine power cycle burning low Btu gas (LBG) make it a potentially attractive alternative to the high sulfur emitting direct coal-fired steam cycle. In the gasification process, much of the bound nitrogen in coal is converted to ammonia in the LBG. This ammonia is largely converted to nitrogen oxides (NOx ) in conventional combustors. This paper examines the pressurized bench scale performance of reactors previously demonstrated to produce low NOx emissions in atmospheric laboratory scale experiments. LBG was synthesized in a catalytic reformer and fired in three reactors: a catalytic reactor, a diffusion flame, and a stirred reactor. Effects of scale, pressure, stoichiometry, residence time, and preheat were examined. Lowest NOx emissions were produced in a rich/lean series staged catalytic reactor.

Copyright © 1982 by ASME
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