Influence of flue gas conditioning on fly ash characteristics

Shanthakumar, S.; Singh, Devendrá; Phadke, R. C.

doi:10.1016/j.fuel.2008.05.007

Cited by 22 publications

(10 citation statements)

References 40 publications

(37 reference statements)

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“…To achieve this, several pollution control devices such as cyclone separators, bag filters, and electrostatic precipitators (ESP) are being employed. Among the pollution control devices, ESP are most popularly used in thermal power stations to reduce SPM levels [1][2][3]. This is mainly due to their: (i) higher efficiency of removal of particles (<0.01 m in size), (ii) effectiveness over a wide range of operating temperatures and (iii) suitability for corrosive environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

Statistical modelling and optimization of hydrolysis of urea to generate ammonia for flue gas conditioning

Mahalik

Sahu

Patwardhan

et al. 2010

Journal of Hazardous Materials

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Section: Introductionmentioning

confidence: 99%

Statistical modelling and optimization of hydrolysis of urea to generate ammonia for flue gas conditioning

Mahalik

Sahu

Patwardhan

et al. 2010

Journal of Hazardous Materials

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“…Another challenging but industry-relevant problems that Shanthakumar et al [159,160] studied is flue gas conditioning, FGC, of the fly ash, as described in the following. It is a well-understood fact that among various pollution control devices, electrostatic precipitators, ESPs, and cyclone separators, are popularly employed by the thermal power stations, and cement plants, for reduction of suspended particulate matter, SPM, as depicted in Fig.…”

Section: Gas-geomaterials Interactionmentioning

confidence: 99%

“…10), after DFGC, reveal that this treatment is more effective for increasing the fly ash collection due to agglomeration of the ash particles, which enhances the collection efficiency of the ESP. This in turn results in less SPM emissions from the power plants levels [159][160][161]163].…”

Section: Gas-geomaterials Interactionmentioning

confidence: 99%

Novel Techniques to Simulate and Monitor Contaminant–Geomaterial Interactions

Singh

2019

Indian Geotech J

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Generation of huge amount of the toxic and hazardous wastes coming out of various industrial and domestic activities is becoming a major threat to the society. In the long run, mainly because of nonscientific storage, disposal and closure, and due to the presence of undesirable concentration(s) of chemicals and radionuclides, elevated temperatures and microbial activity, these wastes (read contaminants) interact with geomaterials, viz., soils, rock mass, groundwater. This interaction, termed as contaminant-geomaterial interaction, depending upon the severity of the contaminant(s) and interaction time, might alter overall characteristics of the geomaterials. Unfortunately, conventional laboratory and field instrumentation techniques are not well equipped to capture such interaction(s) and the mechanisms that prevail in the geomaterials. Hence, to achieve these objectives, evolving adequate and workable strategies, and modalities, that are nondestructive, noninvasive and economical is desirable. In this context, author's association with several industries resulted in development of innovative, cost-effective, yet efficient techniques that facilitate laboratory and/or in situ simulation and monitoring of such interaction(s). Details of these techniques, the philosophy behind their creation and the way they can be employed for safeguarding geoenvironment, from deterioration, are presented and discussed in this paper. Also, a brief discussion on some of the real-life situations where such techniques can be applied easily, by suitably modifying them, is presented for the benefit of the aspiring researchers and professionals.

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“…The flue gas conditioning (FGC) is a technique that involves addition of chemical additives to the flue gas in order to increase ash collection efficiency of ESPs (7). The chemical additives include sulphur trioxide, ammonia, salts of sodium, or vapor/ atomized water.…”

Section: Introductionmentioning

confidence: 99%

Experiments on the Removal of Fine Particles with Flue Gas Conditioning

Xia¹,

Liu²,

Yang³

2018

dtetr

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The removals of fine particles from coal combustion by electrostatic precipitator (ESP) with flue gas conditioning were investigated experimentally based on coalfired thermal system. The experimental results show that the performance of ESP can be improved significantly by adding atomized water, and the fine particles concentration of ESP outlet can decrease 34% under typical flue gas conditions. the conditioning effects of large particle sizes are better than that of small particle sizes, and the atomized water conditioning effect has been remarkably improved with the increase of dust concentration.

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Influence of flue gas conditioning on fly ash characteristics

Cited by 22 publications

References 40 publications

Statistical modelling and optimization of hydrolysis of urea to generate ammonia for flue gas conditioning

Statistical modelling and optimization of hydrolysis of urea to generate ammonia for flue gas conditioning

Novel Techniques to Simulate and Monitor Contaminant–Geomaterial Interactions

Experiments on the Removal of Fine Particles with Flue Gas Conditioning

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