In-process control of nitrogen and sulfur in entrained-bed gasifers. Final report
The report gives results of an evaluation of theoretical aspects and engineering considerations of in-process pollutant control of the entrained-bed slagging coal-gasification process, as applied to combined-cycle operation or to the retrofit of existing boilers. The pollutants of concern are the nitrogen and sulfur oxides (NOx and SOx) which, without controls, are products of combustion of the gasifier product gas. A literature search and theoretical evlauation were conducted to identify the chemical/physical conditions and flow characteristics of entrained-bed slagging gasification as they relate to in-process control of NOx and SOx precursors. However, the degree of success of the suggested in-process controls could not be projected. The applicability of potential in-process control was examined. It was concluded that in-process controls, if feasible, are applicable for reducing NOx and SOx precursors so that the capacities of downstream control devices can be reduced with subsequent cost savings.
- Research Organization:
- Radian Corp., Research Triangle Park, NC (USA)
- OSTI ID:
- 6935003
- Report Number(s):
- PB-87-141032/XAB; DCN-86-203-023-57-08
- Country of Publication:
- United States
- Language:
- English
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AIR POLLUTION ABATEMENT
BOILERS
CHALCOGENIDES
COAL GASIFICATION
CONTROL
ENTRAINMENT
GASIFICATION
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
PERFORMANCE
POLLUTION ABATEMENT
SULFUR COMPOUNDS
SULFUR OXIDES
THERMOCHEMICAL PROCESSES