Record Display for the EPA National Library Catalog
RECORD NUMBER: 24 OF 43| Main Title | High-Temperature, Short-Time Sulfation of Calcium-Based Sorbents. 2. Experimental Data and Theoretical Model Predictions. | |||||||||||
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| Author | Milne, C. R. ; Silcox, G. D. ; Pershing, D. W. ; Kirchgessner, D. A. ; | |||||||||||
| CORP Author | Utah Univ., Salt Lake City. Dept. of Chemical Engineering.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. | |||||||||||
| Publisher | c1990 | |||||||||||
| Year Published | 1990 | |||||||||||
| Report Number | EPA-R-811001; EPA/600/J-90/313; | |||||||||||
| Stock Number | PB91-146670 | |||||||||||
| Additional Subjects | Air pollution control ; Sorbents ; Injection ; Sulfation ; Mathematical models ; Experimental design ; High temperature tests ; Heat transfer ; Mass transfer ; Sulfur dioxide ; Diffusion ; Dry methods ; Thermodynamics ; Calcium carbonates ; Calcium hydroxides ; Reprints ; Flue gas desulfurization | |||||||||||
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| Collation | 17p | |||||||||||
| Abstract | The paper gives results of an analysis of the fundamental processes for the injection of CaCO3 and Ca(OH)2 for the removal of SO2 from combustion gases of coal-fired boilers, on the basis of experimental data and a comprehensive theoretical model. Sulfation data were obtained in a 30-kW isothermal gas-particle transport reactor at conditions simulating those of upper-furnace injection. The theoretical model accounts for particle structure, calcination, sintering, sulfation, and heat and mass transfer. Pore diffusion, product-layer diffusion, and sintering appear to be the principal processes that govern the rate of SO2 capture for the hydrate particles of interest for commercial dry sorbent injection. (Copyright (c) 1990 American Chemical Society.) |