Fluidized bed coal combustors

Desulfurization with Dry Lime Limestone or lime or dolomite (CaCO,3-MgCO,3) in a fluidized bed coal combustor reacts with SO9 in... 

A fly ash sample from a fluidized bed coal combustor is analyzed to obtain particle size data. Table PI. 1 shows the distributions of the projected area equivalent diameter of the particle dA obtained by the image analysis and the volume diameter of the particle d obtained by the electrozone technique [Ghadiri et al., 1991]. 

The control of nitric oxide emission from a fluidized bed coal combustor has been extensively investigated and it was found that the level of nitric oxide emission was determined by the relative contribution of nitric oxide formation and reduction processes. (l.,2) There is a great need for quantitative information concerning the rate of these processes.(2)... 

Spacil, H. S. and Luthra, K. L. "Thermochemistry of a Pressurized Fluidized Bed Coal Combustor/Gas Turbine Combined Cycle". 1980. GE Report 80CRD238. See also, CFCC Development Program 1978. 

Horio, M Mori, S. Muchi, I. "A Model Study for the Development of Low NOx Fluidized-Bed Coal Combustors" Proc. 5th Intern. Conf. on Fluidized-Bed Combustion, Vol. II, 1977, 605-624. 

Gibbs, B. M. A Mechanistic Model for Predicting the Performance of a Fluidized Bed Coal Combustor Inst, of Fuel Sym. Series No. 1, Proc. Fluidized Combustion Conference Paper No. A5, 1975, A5-1-A5-10. 

Van der Honing, G. Volatile and Char Combustion in Large Scale Fluidized Bed Coal Combustors", Ph.D dissertation, Twente University, Netherlands, 1991. Konnov A. A., Detailed Reacrion Mechanism for Small Hydrocarbons Combustion, Release 0.4, http //homepages.vub.ac.be/ akonnov/, 1998. 

Prediction of the flow and transport processes is crucial in modeling the heat transfer and combustion/gasiflcation gas produced. The conventional modeling of bubbling and circulating fluidized bed coal combustors were outlined by Arena et al [4]. 

Arena U, Chirone R, D Amore M, Miccio M, Salatino P (1995) Some issures in modelling bubbling and circulating fluidized-bed coal combustors. Powder Technology 82 301-316... 

Ho TC, Ko KN, Chang CC, Hopper JR. Dynamic simulation of a shallow jetting fluidized bed coal combustor. Powder Technology 53 247-256, 1987. 

Han GY, Cho. Radiative heat transfer in a circulating fluidized bed coal combustor. Powder Technol 102 266 273,... 

CaS04 surface deposits in fluidized-bed coal combustors is much less severe than that by molten alkali sulfates, and the resistance of an Fc3A1 alloy was good under such conditions (Natesan and Podolski, 1988). 

Lee, D.C. and Georgakis, C. (1981) "A single Particle-Size Model for Sulfur Retention in Fluidized Bed Coal Combustors , AIChEJ, 27, 472-81. 

Another area of modelling for fluidized bed coal combustors and geisifiers that needs to be developed is the construction of dynamic models that can be ised to simulate and analyze the behavior during the start-up, shutdovn, tum-i and slxamping of the fluidized bed This is in5>ortant from the point of view of developing control and following the load demand of the bed ... 

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