Simulation of the operation of an industrial wet flue gas desulfurization system
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.
About: This article is published in Fuel Processing Technology.The article was published on 2010-12-01. It has received 85 citations till now. The article focuses on the topics: Flue gas & Spray tower.
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TL;DR: In this paper, a concise model for wet limestone-gypsum flue gas desulfurization system with spray tower has been presented, aiming at the prediction of the absorption height in a spray tower.
56 citations
TL;DR: In this paper, the authors summarized the characteristics and the latest research progress of various desulfurization technologies, and aimed to provide help for the better development of desulfureization technologies.
52 citations
TL;DR: In this paper , the authors summarized the characteristics and the latest research progress of various desulfurization technologies, and aimed to provide help for the better development of desulfureization technologies.
52 citations
TL;DR: In this paper, the authors evaluated flue gas desulfurization (FGD) gypsum as a setting time retarder to replace the natural gypsuma in the production of Portland cement (CP II E-32).
Abstract: Flue gas desulfurization (FGD) gypsum was evaluated as a setting time retarder to replace the natural gypsum in the production of Portland cement (CP II E-32). The results of physical-chemistry and morphological characterization of both products showed a material of high purity, calcium sulfate dehydrate for natural gypsum, and higher percentages of bassanite (CaSO 4 ·0.6H 2 O) and hannebachite (CaSO 3 ·0.5H 2 O) with low concentrations of impurities for FGD gypsum. Based on the results, the FGD gypsum is a suitable alternative to replace natural gypsum. The setting time with FGD gypsum showed about 1 h delay compared with natural gypsum and its effect on compressive strength depend on composition of the mixtures, reaching a maximum value for the mixture of 1.4 wt% natural gypsum and 2.1 wt% FGD gypsum. According to the results of leaching and solubilization tests FGD gypsum residue was classified as a non-hazardous and non-inert.
49 citations
TL;DR: In this article, the ozone-based low-temperature oxidation deNOx process was investigated, especially the N2O5 formation mechanism, and it was shown that the formation of nitrogen oxides was greatly influenced by the temperature and residence time.
Abstract: With advantage of the solubility improving from NO into a higher valence state of nitrogen oxides, especially N2O5, the ozone-based low-temperature oxidation deNOx process was investigated, especially the N2O5 formation mechanism. The temperature ranging from 60 to 150 °C and O3/NO ratios and residence time changing were investigated by a well-designed experiment. N2O5 was detected by Fourier transform infrared spectroscopy (FTIR). A 24-step mechanism was also proposed, specially for describing the formation of N2O5. Results demonstrated that the formation of N2O5 was greatly influenced by the temperature and residence time. N2O5 could be formed at relatively low temperatures, such as 60–80 °C, within 3–5 s when O3/NO > 1.0. There was no N2O5 detected when the temperature was higher than 130 °C as a result of the decomposition of NO3. The proposed mechanism could give a good prediction of the experimental results with kinetic simulation. To speed up the N2O5 formation process and reduce the O3 dosage and ...
46 citations
References
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30 Jun 1972TL;DR: An overview of Chemical Reaction Engineering is presented, followed by an introduction to Reactor Design, and a discussion of the Dispersion Model.
Abstract: Partial table of contents: Overview of Chemical Reaction Engineering. HOMOGENEOUS REACTIONS IN IDEAL REACTORS. Introduction to Reactor Design. Design for Single Reactions. Design for Parallel Reactions. Potpourri of Multiple Reactions. NON IDEAL FLOW. Compartment Models. The Dispersion Model. The Tank--in--Series Model. REACTIONS CATALYZED BY SOLIDS. Solid Catalyzed Reactions. The Packed Bed Catalytic Reactor. Deactivating Catalysts. HETEROGENEOUS REACTIONS. Fluid--Fluid Reactions: Kinetics. Fluid--Particle Reactions: Design. BIOCHEMICAL REACTIONS. Enzyme Fermentation. Substrate Limiting Microbial Fermentation. Product Limiting Microbial Fermentation. Appendix. Index.
8,257 citations
1,211 citations
TL;DR: In this article, the effects of operating parameters on SO 2 removal were investigated, such as Ca/S molar ratio, particle size of SO 2 sorbent, apparent residence time of gas in the bed and approach to saturation temperature.
197 citations
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: A detailed model for a wet flue gas desulfurization (FGD) pilot plant, based on the packed tower concept, has been developed in this article, where all important rate-determining steps, absorption of SO2, oxidation of H...
Abstract: A detailed model for a wet flue gas desulfurization (FGD) pilot plant, based on the packed tower concept, has been developed. All important rate-determining steps, absorption of SO2, oxidation of H...
146 citations