Spout voidage distribution, stability and particle circulation rates in spouted beds of coarse particles—I. Theory

A comparative hydrodynamic study of two types of spouted bed reactor designs

“…Experimental values of SB hydrodynamic parameters obtained from this study and from published literatures (Choi and Meisen, 1992;Day et al, 1987;Epstein et al, 1978;He et al, 1997;Krzywanski et al, 1989;Morgan et al, 1985;Olazar et al, 1993;Rovero et al, 1983) are used for training and validating the model. The network training was performed for 154 data and validation of the network performed for 74 data.…”

Numerical simulation of reactive transfers in spouted beds at high temperature: Application to coal gasification

“…They considered an adiabatic reactor and adopted a pseudo homogeneous approach. Morgan et al [22] pointed out some limitations of this model: the particle circulation description is inaccurate and the pseudo homogeneous assumption is not advisable for fast and highly exothermic reactions.…”

“…In order to fully describe the bed structure, the bed porosity must be evaluated. For the spout region, Morgan et al [22] and Day [26] proposed an analytical solution to the axial voidage:…”

Non-isothermal modeling of the flue gas desulphurization process using a semi-dry spouted bed reactor

“…The other required model parameters are calculated using the correlations which are available in literature (Mamuro and Hattori, 1968;Mc Nab, 1972;Piccinini et al, 1979;Smith et al, 1982;Morgan et al, 1985;Day et al, 1987;Day, 1990;Lim et al, 1991;Hook et al, 1992;Sanchez et al, 2000;Singh et al, 2006). The mass transfer coefficients in the gas phase for water vapor also are obtained using Chilton-Colburn analogy of heat and mass transfer (Treybal, 1981).…”

“…Custom technologies for FGD can be classified into three different categories. Wet processes (wet lime/limestone scrubbers), semi-dry processes (spray dry scrubbers, duct sorbent injection) and dry processes (furnaces sorbent injection, varying adsorbent) (Gǐomez et al, 2007;Nygaard et al, 2004;Ma et al, 2001).…”