Status of Flue Gas Desulphurisation (FGD) systems from coal-fired power plants: Overview of the physic-chemical control processes of wet limestone FGDs

Córdoba, Patricia

doi:10.1016/j.fuel.2014.12.065

Cited by 432 publications

(190 citation statements)

References 73 publications

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“…Nowadays, flue gas desulfurization (FGD) is regarded as the most effective method in controlling and reducing the emission of SO 2 [2]. Many scholars have reviewed the FGD process such as wet FGD, dry and/or semi-dry FGD process [1,3,4]. Among them, wet limestone FGD technology shares over 90% of the installed desulfurization capacities worldwide.…”

Section: Introductionmentioning

confidence: 99%

Solubility and thermodynamic properties of SO 2 in three low volatile urea derivatives

Jiang

Liu

Deng

2016

The Journal of Chemical Thermodynamics

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Section: Introductionmentioning

confidence: 99%

Solubility and thermodynamic properties of SO 2 in three low volatile urea derivatives

Jiang

Liu

Deng

2016

The Journal of Chemical Thermodynamics

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“…The resulting product is a mixture of CaSO3 and CaSO4 hydrates, so it cannot be further used and must be treated as a waste [4].…”

Section: Semi-dry Fgdmentioning

confidence: 99%

Full-Scale Evaluation of SO2 Capture Increase for a Semi-Dry FGD Technology

Hrdlička¹,

Dlouhý²

2017

TransVSBms

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The paper is focused on examination of a possibility of increase of current semi-dry FGD technology SO2 capture ratio for two 130 t/h PC boilers that burn a blend of lignite and hard coal. The FGD unit has been designed to reach SO2 emission limit 1350 mg/Nm 3 , the aim of the work is to verify reaching SO2 emission targets 500 and 200 mg/Nm 3 . The examination consisted of experiments with the goal to determine real correlation of SO2 capture ratio with Ca/S and various differences of temperature in absorber and dew point. Based on these correlations, solvent consumption for the new emission targets was obtained. Second objective was evaluation of solvent consumption for the case of future substitution of recent coal blend by a new blend of lignite and hard coal. Experiments using recent fuel have been carried out in a long-time range in full scale operation, resulting in quantification of correlation of Ca/S and temperature difference with the SO2 capture ratio. AbstraktPříspěvek se zabývá možností zvýšit účinnost u stávající technologie polosuchého odsíření pro kotle spalující směs černého a hnědého uhlí o výkonu 2x130 t/h, která byla projektována pro dosažení emisního limitu SO2 1350 mg/Nm 3 , aby bylo možné dosáhnout úrovně koncentrace SO2 ve spalinách 500, resp. 200 mg/Nm 3 . Cílem bylo experimentálně stanovit křivky závislosti účinnosti odsíření na poměru Ca/S a různé diference teploty v absorbéru a teploty rosného bodu, na základě kterých by bylo možné stanovit provozní podmínky odsíření pro tyto nižší emisní limity, a stanovit spotřebu aditiva pro dosažení těchto limitů. Dalším cílem bylo stanovit spotřebu aditiva pro náhradu stávající směsi dvou uhlí směsí jinou. Experimenty se stávající uhelnou směsí byly provedeny dlouhodobě v plném měřítku při různých provozních režimech odsíření, výsledkem je kvantifikace vlivu přebytku Ca/S a teplotní diference na účinnost odsíření.

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“…The post-combustion controls are the flue gas desulfurization (FGD) processes. 2 Although recent concerns on emissions control suggest the diversification from current fossil fuels technologies to more sustainable ones-that is, the use of renewable energy sources 3 and the use of hydrogen 4 -such energy system transformation is expected to be completed after 2030-2040. Thus it is necessary in parallel to the integration of the above sustainable technologies to improve the efficiency and to reduce the associated cost of emission control technologies, such as FGD processes.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the extensive literature review carried out for the purpose of this work, except in a few cases reported in Córdoba, 2 Álvarez-Ayuso et al, 5 and Braden et al, 6 no concise review of the various FGD technologies is available. In particular, regarding FGD technologies, financial considerations as well as sources of raw materials and disposal of the end products are not available in the literature.…”

Section: Introductionmentioning

confidence: 99%

Review of Design, Operating, and Financial Considerations in Flue Gas Desulfurization Systems

Poullikkas

2015

Energy Technology & Policy

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In this work, measures available for the reduction of sulfur dioxide stack emissions are discussed. The various flue gas desulfurization (FGD) technologies available in the market, for the reduction of sulfur dioxide emissions, are presented. The process descriptions are discussed and the capital and operating costs of the various methods are presented. Also, possible sources of raw materials required in each process and the viable means of disposal of the end products are discussed. In the FGD market throughout the world, limestone wet scrubbers take the lead, the byproduct of which is a marketable gypsum. Most of the second (other wet scrubbing) covers the similar process but produces a disposal product. This sector also includes the seawater scrubbing process. Other significant sectors include spray dry scrubbers, regenerable processes, and sorbent injection systems. Combined SO 2 /NO x processes have a small share, and the trend is not expected to change.

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Status of Flue Gas Desulphurisation (FGD) systems from coal-fired power plants: Overview of the physic-chemical control processes of wet limestone FGDs

Cited by 432 publications

References 73 publications

Solubility and thermodynamic properties of SO 2 in three low volatile urea derivatives

Solubility and thermodynamic properties of SO 2 in three low volatile urea derivatives

Full-Scale Evaluation of SO2 Capture Increase for a Semi-Dry FGD Technology

Review of Design, Operating, and Financial Considerations in Flue Gas Desulfurization Systems

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