Simulation model of wet flue gas desulphurization plant

Gerbec, Marko; Stergaršek, Andrej; Kocjancic, Robert

doi:10.1016/0098-1354(95)87050-4

Cited by 43 publications

(22 citation statements)

References 2 publications

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“…The overall reaction carried out in the FGD plant is between SO 2 and limestone (CaCO 3 ) producing gypsum (CaSO 4 · 2H 2 O) and CO 2 : SO 2 + CaCO 3 + 1/2O 2 + 2H 2 O → CaSO 4 Á 2H 2 O + CO 2 (1) Detailed descriptions of reactions and other phenomena involved have been extensively reported, e.g., in [1][2][3][4].…”

Section: Introduction and Scopementioning

confidence: 99%

Technology Optimization of Wet Flue Gas Desulfurization Process

2007

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Optimization of the wet limestone (calcite) flue gas desulfurization (FGD) process is described, with the focus on the layout of subprocesses and equipment. The aim of optimization was to check the effectiveness and reliability of alternative layouts, involving intermediate product (gypsum) storage in the absorber make-up tank, instant production of limestone slurry from powder in a wet screw conveyer and automatic gypsum dewatering line operation. Three alternatives, standard layout, optimized layout and optimized layout without reheating of treated gas, were designed and tested in a small industrial FGD plant. The comparison included evaluation of desulfurization efficiency, economical feasibility (considering a 125 MW power plant) and reliability of operation. The efficiency of the system was not affected by the layouts. Investment costs were reduced by 5 and 15 % for alternatives 1 and 2, respectively, compared to standard offers on the market. With respect to operating costs, variable operating and maintenance costs could be decreased by 0.5 up to 2.5 %, respectively. As shown by risk and reliability analysis, the availability of the system in both alternative layouts remained unchanged or was better with regard to the standard layout.

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Section: Introduction and Scopementioning

confidence: 99%

Technology Optimization of Wet Flue Gas Desulfurization Process

2007

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“…Considering limestone fully dissolving in the slurry, the resistance of gas film controlled the process, which were described by equation (1).…”

Section: Two-film Theorymentioning

confidence: 99%

“…In 1995, Gerbec etc. [1] established the unsteady model of WFGD. And chemical equilibrium and precipitation and dissolution of salt ware built into the model, which laid a foundation of quantitative description of chemical reaction in desulfurization tower.…”

Section: Introductionmentioning

confidence: 99%

Simulation Study on the Desulfurization Efficiency Based on Swirl Atomizing

Ding-ping¹,

Cui²,

Shang³

2017

dtcse

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Based on the kinetics of chemical reaction, the theory of turbulent diffusion and the theory of mass transfer, the turbulent flow of flue gas in the desulfurization tower was described by standard k -εmodel, and Lagrangian discrete phase model was employed to solve the particle momentum. The SO2 absorption model of wet flue gas desulfurization (WFGD) tower was established, and swirl atomizing layer (SAL) was installed on the tower. The concentration distribution of SO2 was simulated using CFD method. The results showed that SAL could improve the desulfurization efficiency.

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“…They validated their model with literature data, and satisfactory results were obtained. Gerbec et al [11] developed nonstationary model of wet limestone desulfurization plant to study chemical and physical phenomena during operation. The absorption of SO 2 from flue gas to counter current falling dispersed drops of liquid phase.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Modeling and Analysis of an Industrial Gas Suspension Absorber for Flue Gas Desulfurization

Cignitti

Mansouri

Sales‐Cruz

et al. 2015

Emiss. Control Sci. Technol.

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In this work, semidry desulfurization of flue gas using a gas suspension absorber (GSA) is studied. A simple dynamic model which can properly represent the GSA was developed. In order to model the reaction kinetics, an empirical reaction rate expression was introduced. The reaction rate expression parameters were fitted to operational data from a real cement plant. A detailed statistical analysis of the parameter estimation procedure was performed, and the confidence intervals for estimated kinetic parameters were calculated. The model and reaction rate expression prediction ability was tested using another plant data set. It was verified that in spite of the simplicity of the model, very good prediction of industrial behavior was obtained. Furthermore, the dynamic analysis of the system was performed by carrying out open-loop and closed-loop simulations to verify plant dynamics. Therefore, a simple dynamic model with a reaction rate expression that is simple and efficient to use to predict the dynamics of GSA process was proposed in this work.

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Simulation model of wet flue gas desulphurization plant

Cited by 43 publications

References 2 publications

Technology Optimization of Wet Flue Gas Desulfurization Process

Technology Optimization of Wet Flue Gas Desulfurization Process

Simulation Study on the Desulfurization Efficiency Based on Swirl Atomizing

Dynamic Modeling and Analysis of an Industrial Gas Suspension Absorber for Flue Gas Desulfurization

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