The effect of carboxymethyl cellulose (CMC) on the stability of coal-water slurries

Boylu, Feridun; Atesok, G.; Dinçer, Hatice

doi:10.1016/j.fuel.2003.12.016

Cited by 82 publications

(40 citation statements)

References 5 publications

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“…The stabilizing effect of high-molecular compounds grows with an increase in their molecular weight. A sharp increase in the stability of dispersed systems is observed as well [13].…”

Section: Literature Review and Problem Statementmentioning

confidence: 81%

Study of the strength of flocculated structures of polydispersed coal suspensions

Shkop

Tseitlin

Shestopalov

et al. 2017

EEJET

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“…The stabilizing effect of high-molecular compounds grows with an increase in their molecular weight. A sharp increase in the stability of dispersed systems is observed as well [13].…”

Section: Literature Review and Problem Statementmentioning

confidence: 81%

Study of the strength of flocculated structures of polydispersed coal suspensions

Shkop

Tseitlin

Shestopalov

et al. 2017

EEJET

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“…This coal-sludge slurry (CSS), much like coal-water slurry (CWS), can be pumped, transported in pipelines and combusted in industrial boilers and furnaces with an environmentally benign manner [15][16][17][18][19][20]. Using this method, heavy metals in the sewage sludge are trapped in ash during the fusion of coal ash, avoiding secondary pollution.…”

Section: Introductionmentioning

confidence: 99%

The utilization of sewage sludge by blending with coal water slurry

Xie

et al. 2015

Fuel

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“…Their work was aimed at reducing the viscosity of the investigated slurries to facilitate long-distance pumping and reducing energy requirements. Boylu et al, (2005) studied the effect of caboxymethyl cellulose (CMC) on the stability of coal-water slurry using different coal ranks. The results depicted that polymeric anionic CMC agent had higher effect on the stability of coal-water slurry, in particular, that was prepared from high rank bituminous coal (Thermal Code No.…”

Section: Background Of the Studymentioning

confidence: 99%

Influence of Chemical Reagents on Rheological Properties of Fly Ash-Water Slurry at Varying Temperature Environment

Naik¹,

Mishra²,

Rao³

2011

CCGP

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About 70% of total electrical energy is generated from thermal power plants in India which in turn release about 160 Mt of fly ash as solid waste annually. Transportation and disposal of such a huge amount of fly ash is a major problem faced by the power plants. Presently fly ash is transported as lean slurry in pipe lines requiring about 80 to 85% of water with high energy input. A major impediment in high volume transportation of fly ash is its high specific gravity as compared to that of water. The objective of the present study was to evaluate the rheological characteristics of high concentration fly ash slurry with and without a chemical reagent at varying temperature environment to facilitate smooth flow of materials in the pipelines. Six different composition of fly ash slurry samples were considered for investigation. The main constituents of the slurry were fly ash, water, a cationic surfactant, and a counter-ion. Detailed rheological properties were determined using a cylindrical coaxial rotational rheometer at shear rates varying from 25s 21 to 1000s 21 for 40% solid concentration (by weight). Temperature was varied from 20uC to 40uC for all the shear rates investigated. Test results showed that all the slurries exhibited shearthinning behaviour in the presence of the surfactant. The influence of cationic tenside on drag reduction of fly ash slurry was also studied. The distinctive reduction of surface tension on colloidal dispersion characteristics of the fly ash slurry was observed in the presence of the tenside. It revealed that the slurry developed in the above manner has a potential to be transported through pipelines with minimal energy consumption.

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The effect of carboxymethyl cellulose (CMC) on the stability of coal-water slurries

Cited by 82 publications

References 5 publications

Study of the strength of flocculated structures of polydispersed coal suspensions

Study of the strength of flocculated structures of polydispersed coal suspensions

The utilization of sewage sludge by blending with coal water slurry

Influence of Chemical Reagents on Rheological Properties of Fly Ash-Water Slurry at Varying Temperature Environment

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