Assessment of in-furnace dry sorbent injection experimental results burning low sulphur content coals

Conference · Sun Dec 31 00:00:00 EST 1995

OSTI ID:163294

Collado, F J ^[1]

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1. Univ. de Zaragoza (Spain)

In an effort to adjust the SO{sub 2} emissions of coal power stations to the current air pollutant standards, established by the EC, flue gas desulfurization tests with in-furnace dry sorbent injection technology in the Spanish coal power station ``Litoral`` (tangentially-fired) were performed. The measured retentions were lower than predicted through a one-dimensional model. Then, it was thought that a CFD 3D simulation of the injection would help to understand the complex relationships of the process. The simulation was divided in two stages: in the first one, the turbulent velocity and the temperature field were solved. In the second one, representative sorbent particles were injected in the turbulent field previously solved, the focus of this work being the global sulphur capture modeling and its validation through the experimental measurements obtained. After a revision of the models proposed in the specialized literature, a global sulfation model is chosen, being compared with the experimental data obtained in the power station. Because of the main results of this work, the authors can highlight the testing of the laboratory-scale correlations against full-scale results, and can mitigate the difficulty of estimating the actual temperature profile by experimenting with the particle and its residence time without the aid of a CFD code.

• OSTI ID: 163294
• Report Number(s): CONF-950729-; TRN: IM9604%%399
• Resource Relation: Conference: 30. intersociety energy conversion engineering conference, Orlando, FL (United States), 30 Jul - 5 Aug 1995; Other Information: PBD: 1995; Related Information: Is Part Of Proceedings of the 30. intersociety energy conversion engineering conference. Volume 2; Goswami, D.Y. [ed.] [Univ. of Florida, Gainesville, FL (United States)]; Kannberg, L.D.; Somasundaram, S. [eds.] [Pacific Northwest Lab., Richland, WA (United States)]; Mancini, T.R. [ed.] [Sandia National Labs., Albuquerque, NM (United States)]; PB: 658 p.
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
01 COAL, LIGNITE, AND PEAT
SULFUR DIOXIDE
AIR POLLUTION CONTROL
SORBENT INJECTION PROCESSES
PERFORMANCE TESTING
MATHEMATICAL MODELS
FOSSIL-FUEL POWER PLANTS
COAL
COMBUSTION
SULFUR CONTENT
FLUID MECHANICS
CALCIUM CARBONATES
SULFIDATION
SINTERING
CALCIUM HYDROXIDES
CALCIUM OXIDES
CALCINATION
DEHYDRATION
CALCIUM SULFATES