Predicting N{sub 2}O emissions from circulating fluidized-bed coal combustion
- North Dakota Univ., Grand Forks, ND (United States). Energy and Environmental Research Center
- USDOE Morgantown Energy Technology Center, WV (United States)
A parametric pilot-scale investigation of three low- and two high-rank coals has shown that temperature and coal type are the dominant parameters influencing nitrous oxide (N{sub 2}0) emissions. Excess air, limestone feed rate, and air split have a minor impact on N{sub 2}0 emissions. A model to predict N{sub 2}0 emissions has been developed and will be refined with further experimentation. Typically, N{sub 2}0 measured emissions from atmospheric FBCs can range from 40 to 200 ppM, depending on the coal properties and operational and design parameters. In contrast, pulverized coal-fired boilers emit very low levels (0-10 ppM) of N{sub 2}0. The purpose of this paper to report the effect of key operating parameters, the relative importance of coal type, and the potentially significant coal properties for producing N{sub 2}0 emissions in a circulating fluidized-bed combustor (CFBC). The generation of N{sub 2}0 emissions is quantified in an empirical model based on the experimental data.
- Research Organization:
- USDOE Morgantown Energy Technology Center, WV (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- OSTI ID:
- 10177047
- Report Number(s):
- DOE/METC/C-92/7029; CONF-921037-3; ON: DE92040394; NC: NONE
- Resource Relation:
- Conference: 9. annual international Pittsburgh coal conference,Pittsburgh, PA (United States),12-16 Oct 1992; Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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