Emission control of N{sub 2}O by co-combustion of coal and biomass and narrow pulse corona discharge
N{sub 2}O and NO{sub x} from coal combustion are the main pollutants that contribute to the acid rain, greenhouse effect and depletion of stratospheric ozone layer. The emission controls of N{sub 2}O and NO{sub x} have been investigated by many researchers in recent years. In order to control the N{sub 2}O, NO{sub x} emissions, co-combustion of coal and biomass in a bench-scale fluidized bed and a series of experiments of pulse corona discharge have been carried out in the National Laboratory of Coal Combustion (NLCC). Co-combustion of coal and biomass was studied to reveal the influences of bed temperature, coal nature and biomass fraction on the emission of N{sub 2}O. The test results indicate that the co-combustion of coal and biomass can reduce the emissions of N{sub 2}O. The higher the nitrogen content is and the lower the volatile matter content of coal is, the more the reduction of emission of N{sub 2}O is. The biomass fraction and the bed temperature also influence the emission of N{sub 2}O. Pulse corona discharge has been developed as a de-NO{sub x}/SO{sub x}/dust method in pulverized coal fired boiler. N{sub 2}O fraction in fluidized bed combustion boiler is much higher in comparison with pulverized coal fired boiler. Narrow pulse corona discharge can decompose N{sub 2}O. The test results reveal that the emission of N{sub 2}O decreases with the increase of voltage and pulse duration.
- Research Organization:
- Huazhong Univ. of Science and Technology, Wuhan (CN)
- OSTI ID:
- 20006748
- Report Number(s):
- CONF-990534-; TRN: IM200008%%355
- Resource Relation:
- Conference: 15th International Conference on Fluidized Bed Combustion, Savannah, GA (US), 05/16/1999--05/19/1999; Other Information: 1 CD-ROM. Operating system required: Windows 3.x; Windows 95/98/NT; Macintosh, Power Macintosh; UNIX. All systems need 2X CD-ROM drive.; PBD: 1999; Related Information: In: Proceedings of the 15th national conference on fluidized bed combustion, by Reuther, R.B. [ed.], [1800] pages.
- Country of Publication:
- United States
- Language:
- English
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