Production and resource utilization of flue gas desulfurized gypsum …

DOI: 10.1016/j.envpol.2021.117799 Corpus ID: 236531280; Production and resource utilization of flue gas desulfurized gypsum in China - A review. @article{Liu2021ProductionAR, title={Production and resource utilization of flue gas desulfurized gypsum in China - A review.}, author={Sen Liu and Wei Liu and Fen Jiao …

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Experimental investigation of utilizing waste flue gas desulfurized …

Flue gas desulfurized gypsum (FGDG) is a waste material produced in the power stations during the flue gas desulfurization process. In China, a small amount of FGDG is used as cement additives or for gypsum boards, but there still exist a mass of FGDG due to the lack of reusing methods. ... is another waste material from the power …

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Desulfurization gypsum uses and properties

What is desulfurization gypsum. Desulfurization gypsum, also known as FGD gypsum (flue gas desulfurization gypsum), is an industrial by-product gypsum obtained by desulfurization and purification of flue gas generated after combustion of sulfur-containing fuel (coal, oil, etc.), and its composition is calcium sulfate dihydrate (CaSO 4.2H 2 O).. …

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A comprehensive review of flue gas desulphurized gypsum: …

The use of waste to capture CO 2 has been on the rise, to reduce costs and to improve the environmental footprint. Here, a flue gas desulfurization (FGD) gypsum waste is proposed, which allows us ...

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Improvement in Water Resistance of Desulfurized …

Ltd.); Desulfurization gypsum (Huainan Thermal Power Plant). The content of -hemihydrate gypsum and dihydrate gypsum are 71.4% and 14.7%, respectively. Meanwhile, the chemical composition and phase XRD spectrum of the desulfurized gypsum are shown in Table 1 and Fig. 1, respectively; the TG-DSC analysis curve is …

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Experimental investigation of utilizing waste flue gas desulfurized …

Flue gas desulfurized gypsum (FGDG) is a waste material produced in the power stations during the flue gas desulfurization process. In China, a small amount of FGDG is used as cement additives or ...

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Integrated Assessment of the Environmental and Economic …

To solve the problems of difficult treatment of desulfurized gypsum and overmining of limestone, a kind of lime/gypsum flue gas desulfurization (FGD) collaborative desulfurized gypsum resource utilization process (LCS) was proposed. The system mainly includes the LCS-LFGD (lime/gypsum flue gas desulfurization system), LCS-C …

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Synergistic effect of red mud, desulfurized gypsum and fly …

DOI: 10.1016/j.conbuildmat.2023.133302 Corpus ID: 261794915; Synergistic effect of red mud, desulfurized gypsum and fly ash in cementitious materials: Mechanical performances and microstructure

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(PDF) Study on the Improvement Effect of Desulfurization Gypsum …

As the waste of coal-fired power plant, desulphurization gypsum is mainly composed of CaSO 3 and CaSO 4, which can replace Na+ in saline-alkali soil to improve saline-alkali soil.

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Production and resource utilization of flue gas desulfurized gypsum …

Flue gas desulfurized gypsum (FGD gypsum), mainly originates from thermal power plants, smelters, and large-scale enterprise boilers. This article reviews the production in China and the latest beneficial utilizations of FGD gypsum. China is a large coal-consuming country and has always had serious …

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Utilization of desulfurization gypsum potentially impairs the …

Flue gas desulfurized gypsum (FGD gypsum), mainly originates from thermal power plants, smelters, and large-scale enterprise boilers. This article reviews the production in China and the latest ...

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Coatings | Free Full-Text | Effect of Polyethylene-Grafted …

Semidry desulfurization and wet desulfurization in a furnace are usually used in the circulating fluidized bed boiler in the power production of thermal power plants, and these two approaches lead to high calcium content in the fly ash and bottom slag of circulating fluidized beds and produce abundant flue-gas desulfurized (FGD) gypsum …

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Effect of curing temperature on the reaction kinetics of …

Solid waste-based binders have been widely studied for decades. Recently, the steel slag-fly ash-desulfurized gypsum (SS-FA-DG) composite system was developed as a novel building cementitious ...

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Ignoring emissions of Hg from coal ash and desulfurized gypsum …

It would be expected that more mercury would be present in coal ash and desulfurized gypsum from the increased combustion of coal and the abundance of Hg removal facilities in Chinese coal-fired power plants, highlighting the increased emphasis on the removal of mercury from atmospheric emissions of coal- Fired power plants in …

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A comprehensive review of flue gas desulphurized gypsum: …

Flue gas desulfurization (FGD) gypsum is a byproduct of the combustion of coal, used for electricity generation. This material is generated during the process of scrubbing flue gases from power plants to remove sulfur dioxide emissions, which …

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Production and resource utilization of flue gas desulfurized …

Flue gas desulfurized gypsum (FGD gypsum), mainly originates from thermal power plants, smelters, and large-scale enterprise boilers. This article reviews the …

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Production and resource utilization of flue gas desulfurized …

Flue gas desulfurized gypsum (FGD gypsum), mainly originates from thermal power plants, smelters, and large-scale enterprise boilers. This article reviews …

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Emission reduction process for dechlorinating …

The chemical reaction between the limestone slurry and sulfur in the flue gas produces calcium sulfate, while the limestone slurry is converted into a gypsum slurry by the desulfurization process.

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Characterization of flue gas desulphurized (FGD) gypsum of …

Thermal Power Plant generates FGD gypsum as by-product during coal combustion. This study evaluates the characterization (spectroscopic and elemental), …

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Application of Flue Gas Desulfurization Gypsum …

F lue gas desulfurization gypsum (FGDG) is a synthetic gypsum that is created during the removal of SO 2 from flue gas by reacting the SO 2 with calcite (CaCO 3) to form calcium sulfite (CaSO 3 …

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Utilization of desulfurization gypsum potentially impairs the …

The thermal treatment duration is another important factor affecting Hg release. In fact, as shown in Fig. 2, the Hg release ratio of FGD gypsum increased drastically with the thermal treatment time.In particular, the average Hg release ratio increased from 3.25 ± 4.96% to 19.20 ± 7.35%, from 13.25 ± 6.97% to 37.56 ± 19.25%, …

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Research on saline-alkali soil amelioration with FGD gypsum

As we know, coal is the dominant energy in Chinese energy mix. Almost all of the coal-fired power plants are required to equip desulfurization facility to remove SO 2 in the flue gas, as illustrated in Fig. 1.The most popular desulfurization technology is wet-FGD using limestone, with the product called FGD-gypsum, which main content is CaSO 4. ...

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Fine Particle Transformation during the Limestone Gypsum

Special attention is required on the fine particle control after desulfurization because a large quantity of fine particles are emitted into the atmosphere from the coal-fired power plants. In an attempt to figure out the transformation of fine particles during the limestone gypsum desulfurization, the physical properties of fine particles before and after the …

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Recent advances in flue gas desulfurization gypsum …

Flue gas desulfurization gypsum (FGDG) is a coal combustion by-product that can be used in various beneficial ways. This review summarizes the recent …

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Improvement of Saline-Alkaline Soil via Flue Gas Desulfurization Gypsum

[20] Stout WL and Priddy WE 2008 Use of flue gas desulfurization (FGD) by-product gypsum on alfalfa Commun Soil Sci. Plant Anal 27 2419-2432. Google Scholar ... [26] Xiao GJ, Luo CK and Zhang FJ 2010 Application amount of desulfurized gypsum from coal fired power plants on improving the quality of alkalized soil J Environ Sci 23 …

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Study on the influence mechanism of flue gas desulphurisation gypsum …

1. Introduction. Flue gas desulphurisation gypsum (FGDG) mainly refers to the solid by-product produced via lime gypsum desulphurisation that is performed in various industries to treat flue gas after the combustion of sulphur-containing fuels, such as coal and petroleum [1].In the limestone gypsum flue gas desulphurisation process, 2.7 …

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Flue Gas Desulfurization (FGD) Working | Thermal Power Plant

Introduction. Flue gas desulfurization (FGD) is the removal process of sulfur dioxide (SO2) from flue gases. Sulfur dioxide in gases is produced by the combustion of fossil fuels and many industrial processes such as gasoline refining as well as cement, paper, glass, steel, iron and copper production.

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Recent advances in flue gas desulfurization gypsum …

The "modern" FGDG is represented by the composition of the FGDG generated by 8 power plants in the U.S. from 2007 to 2010 as reported by Kost et al. (2018). The "old" FGDG is represented by samples collected from 1991 to 1992 from 59 power plants in the U.S. found in Kost et al. (2005). The comparison showed that …

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Elution behavior of mercury in desulfurization gypsum …

The two types of gypsum samples used in this study were obtained from a commercial coal-fired power plant. Both samples were collected from a double-contact flow-type desulfurization equipment. Table 1 presents the values of total mercury and carbon content. These values depend on the type of coal and combustion conditions.

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Modeling of the wet flue gas desulfurization system to …

duce the desulfurized gypsum, which is the desulfurization product of the wet FGD process in coal-fired power plants and also exists as a liquid slurry at the bottom of the scrubber. Gypsum slurry is then moved to a slurry tank through the gypsum bleed pump prior to separation by centrifugation. Notably, the dissolution of limestone (Eq.

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A comprehensive review of flue gas desulphurized gypsum: …

Flue gas desulfurization gypsum (FGD gypsum) is obtained from the desulphurization of combustion gases in fossil fuel power plants. FGD gypsum can be …

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Review A comprehensive review of flue gas desulphurized gypsum …

Flue Gas Desulphurized Gypsum (FGDG) is a by-product generated by the thermal power industry to remove sulfur dioxide (SO 2) from flue gas emissions.This paper provides a comprehensive review of flue gas desulphurized (FGD) gypsum production, property, and applications in the construction industry.

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Effect of aluminum powder and NaOH on the physical and …

ABSTRACT In China, the desulfurization problem of power plants has been paid much attention by the government and the public. From 2014 to present, the nearly one hundred million tons of desulfurized gypsum has been discharged. The utilization rate of desulfurized gypsum in power plants has also become the focus of current …

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Utilization of desulfurization gypsum potentially impairs the …

This study demonstrates the feasibility of establishing high-resolution emission inventories for Chinese cement plants using the mass balance method and plant-level input-output data and improves the understanding of the spatial patterns and temporal evolution of mercury emissions in China.

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