Molten iron oxysulfide as a superior sulfur sorbent. First and second quarters progress report, September 1, 1989--March 1, 1990
Slagging combustors with injected lime or limestone are being considered as replacements for conventional coal burners. They have advantages in that they can be staged to reduce NO{sub x} and SO{sub X} emissions. Iron oxide, as an alternative to lime or limestone may be effective not only as a desulfurizing agent, but, under the right conditions of oxygen potential, it can act as a flux to produce a glassy slag. This glassy slag should be dense and environmentally inert. In this reporting period, the thermodynamic conditions for the operation of the first stage of a combustor operating on a Illinois No. 2 Coal have been examined with respect to the formation of the four phase equilibrium: FeO(wustite)/Fe/liquid/gas over the temperature 950{degrees} to 1300{degrees}C. The minimum dosages of iron oxide which are required at equilibrium and the calculated maximum percent sulfur removal are reported. Also given are the expected pounds of So, per million Btu of heat evolution calculated for complete combustion. These preliminary results indicate that higher temperatures, in the range studied, give better results approaching 96 percent sulfur removal from a coal containing (on a dry basis) 3.29% by weight sulfur. A comparison is made between iron oxide and lime as a desulfurizing agent.
- Research Organization:
- Minnesota Univ., Minneapolis, MN (United States). Mineral Resources Research Center
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-89PC89778
- OSTI ID:
- 10174959
- Report Number(s):
- DOE/PC/89778-T9; ON: DE93019452
- Resource Relation:
- Other Information: PBD: 6 Mar 1990
- Country of Publication:
- United States
- Language:
- English
Similar Records
Molten iron oxysulfide as a superior sulfur sorbent
Molten iron oxysulfide as a superior sulfur sorbent. Technical progress report, September 1, 1989--March 1, 1990
Related Subjects
FOSSIL-FUEL POWER PLANTS
SORBENT INJECTION PROCESSES
PERFORMANCE TESTING
PROGRESS REPORT
COMBUSTORS
COMPARATIVE EVALUATIONS
IRON OXIDES
CALCIUM HYDROXIDES
LIMESTONE
ILLINOIS
FLUE GAS
DESULFURIZATION
DENITRIFICATION
SLAGS
TEMPERATURE DEPENDENCE
200202
NOXIOUS GAS AND PARTICULATE EMISSIONS