Low temperature dry scrubbing reaction kinetics and mechanisms, Volume 2. Final report, September 1, 1991--August 31, 1992
- Ohio Univ., Athens, OH (United States)
A novel wet/dry desulfurization post-Furnace process (ETS` Limestone Emission control (LEC) process) for SO{sub 2} removal has been described by Prudich et al.(1988). In this process hot flue gases are contacted with a bed of quarry-sized (1/4in. to 1/32in.) wet limestone granules. This thesis represents the development of a second generation model of ETS` LEC process. The first generation model developed by Prudich et al.(1988) the use of a fixed limestone bed. The work done on this has been well documented by Appell (1989) and Visneski (1991) process under consideration for this thesis involves a continuously moving limestone bed. The moving bed simplifies the process flowsheet and facilitates limestone reactivation. The moving-bed LEC process involves the use of a cross-flow pattern with the flue gas flowing horizontally across the limestone bed at speeds of around 1 to 2 feet per second and the limestone moving vertically downward through the LEC reactor at speeds of around 1 to 15 feet per hour. The primary parameters considered in the mathematical modeling of the moving-bed LEC process are inlet sulfur dioxide concentration, inlet gas-phase water concentration, inlet flue gas and limestone temperatures and water spray addition rate over the bed. For solution of the process, mass and energy balance equations derived as a function of the positions of the flue gas limestone are solved using a predictor-corrector method. The Adams-Bashforth (modified Euler`s) method is used with a second order corrector.
- Research Organization:
- Ohio Coal Development Office, Columbus, OH (United States); Ohio Univ., Athens, OH (United States)
- Sponsoring Organization:
- Ohio State Government, Columbus, OH (United States)
- OSTI ID:
- 10126897
- Report Number(s):
- OCDO-93006588; ON: TI93006588; CNN: Grant CDO/R-87-2C/B
- Resource Relation:
- Other Information: PBD: Oct 1992
- Country of Publication:
- United States
- Language:
- English
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