Topic
Spray tower
About: Spray tower is a research topic. Over the lifetime, 1028 publications have been published within this topic receiving 4715 citations.
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TL;DR: In this paper, a model based on penetration theory has been developed to calculate the dynamic absorption rate of sulfur dioxide into a droplet of limestone slurry, which includes both instantaneous equilibrium reactions and reactions with finite rates; limestone dissolution, sulfite oxidation, gypsum crystallization and the hydrolysis reaction of CO2.
153 citations
TL;DR: In this article, the simulation of a wet flue gas desulfurization (FGD) unit with spray tower of a power plant is presented, aiming at an efficient follow-up and the optimization of the FGD system operation.
85 citations
TL;DR: In this paper, a detailed process model of the wet limestone flue gas desulfurization system has been presented, which can be used to calculate indispensable parameters for estimating costs and next to minimize capital and operating costs.
Abstract: A detailed process model of the wet limestone flue gas desulfurization system has been presented. This model can be used to calculate indispensable parameters for estimating costs and next to minimize capital and operating costs. The process model describes most important stage of SO2 removal running in an absorber and a holding tank. It includes absorption of sulfur dioxide, oxidation of SO3-, dissolution of limestone, and crystallization of gypsum. An assumption of thermodynamic equilibrium in the solution has been used. SO2 removal and limestone dissolution calculation has been based on stagnant-film theory. The model has been used for predicting the SO2 removal efficiency in the spray scrubber for process parameters, e.g., L/G, droplet diameter, stoichiometric ratio Ca/S, height of the absorption section, gas velocity, concentration in liquid-phase ions of Mg2+ and Cl-, and liquid pH. This model could be used to describe a multilevel spray system, too. The results of this model are in agreement with d...
84 citations
TL;DR: In this article, the absorption of NO from a gas stream containing SO{sub 2} by aqueous solution of NaClOsub 2 was studied in a bench scale scrubber.
Abstract: The absorption of NO from a gas stream containing SO{sub 2} by aqueous solution of NaClO{sub 2} was studied in a bench scale scrubber. NO{sub x} removal of up to 95% was obtained using a packed bed scrubber. The corresponding SO{sub 2} removals were 100%. Experiments were also conducted in a bubble column and a spray chamber scrubber in order to obtain engineering data for scale-up and process design. A novel UV/Vis photodiode array (PDA) method was developed for real-time monitoring of oxychlorine compounds in the scrubbing solutions. As a consequence of the data obtained with the PDA system, a much better understanding of the chemistry of the scrubbing system has led to a simpler mass transfer model than is available in the literature. Absorption rates are reported in terms of overall reaction rates for a spray chamber scrubber and height of transfer units for a packed bed scrubber.
76 citations
TL;DR: In this paper, the authors used dual-film theory and appropriate empirical and semi-empirical correlations to model the absorption process of sulphur dioxide in an open spray tower.
75 citations