A Model for Prediction of Limestone Dissolution in Wet Flue Gas Desulfurization Applications

1997 ◽  
Vol 36 (9) ◽  
pp. 3889-3897 ◽  
Author(s):  
Charlotte Brogren ◽  
Hans T. Karlsson
1993 ◽  
Vol 26 (1) ◽  
pp. 112-113 ◽  
Author(s):  
Naohiko Ukawa ◽  
Susumu Okino ◽  
Michio Oshima ◽  
Tsuyoshi Oishi

Author(s):  
Rui-tang Guo ◽  
Wei-guo Pan ◽  
Xiao-bo Zhang ◽  
Jiang Wu ◽  
Jian-xing Ren

Dissolution rate of limestone for wet flue gas desulfurization in the presence of citric acid was measured by pH-stat method. It was found that limestone dissolution rate in the presence of citric acid was controlled by mass transfer. As can be seen from the experimental results, in the presence of citric acid, limestone dissolution rate increased with increasing stirring speed and reaction temperature. When pH value was greater than or equal to 5.5, due to the formation of calcium citrate, citric acid would inhibit the dissolution process of limestone. And the inhibition effect was more obvious at higher pH value.


2010 ◽  
Vol 85 (9) ◽  
pp. 1208-1214 ◽  
Author(s):  
Selene M. A. Guelli U. Souza ◽  
Fabiane B. F. Santos ◽  
Antonio Augusto Ulson de Souza ◽  
Fernando Vidal Barrero

2014 ◽  
Vol 37 (11) ◽  
pp. 1919-1928
Author(s):  
Lawrence Koech ◽  
Hilary Rutto ◽  
Ray Everson ◽  
Hein Neomagus

2015 ◽  
Vol 54 (40) ◽  
pp. 9783-9797 ◽  
Author(s):  
Claudio Carletti ◽  
Cataldo De Blasio ◽  
Ermei Mäkilä ◽  
Jarno Salonen ◽  
Tapio Westerlund

1993 ◽  
Vol 12 (4) ◽  
pp. 294-299 ◽  
Author(s):  
Naohiko Ukawa ◽  
Toru Takashina ◽  
Michio Oshima ◽  
Tsuyoshi Oishi

Energies ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 6164
Author(s):  
Cataldo De Blasio ◽  
Gabriel Salierno ◽  
Donatella Sinatra ◽  
Miryan Cassanello

Solid-liquid dissolution is a central step in many industrial applications such as pharmaceutical, process engineering, and pollution control. Accurate mathematical models are proposed to improve reactor design and process operations. Analytical methods are significantly beneficial in the case of iterative methods used within experimental investigations. In the present study, a detailed analytical solution for the general case of solid particles dissolving in multiphase chemical reaction systems is presented. In this model, the authors consider a formulation that considers the particles’ shape factor. The general case presented could be utilized within different problems of multiphase flows. These methods could be extended to different cases within the chemical engineering area. Examples are illustrated here in relation to limestone dissolution taking place within the Wet Flue Gas Desulfurization process, where calcium carbonate is dissolving in an acidic environment. The method is the most common used technology to abate SO2 released by fuel combustion. Limestone dissolution plays a major role in the process. Nevertheless, there is a need for improvements in the optimization of the WFGD process for scale-up purposes. The mathematical model has been tested by comparison with experimental data from several mild acidic dissolution assays of sedimentary and metamorphic limestone. We have found that R2 ⊂ 0.92 ± 0.06 from dozens of experiments. This fact verifies the model qualifications in capturing the main drivers of the system.


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