Possibility of using paper sludge in co-firing applications

Vamvuka, Despina; Salpigidou, N.; Kastanaki, Eleni; Sfakiotakis, Stelios

doi:10.1016/j.fuel.2008.09.029

Cited by 110 publications

(51 citation statements)

References 28 publications

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“…There are two peaks in this period of all the sludge samples, which can be regarded as the devolatilization of two kinds of main organic components in the sludge. In a previous work on paper sludge, the first peak was recognized as the decomposition of hemicellulose and cellulose, while the second corresponded to the decomposition of lignin [26]. The second period, called the devolatilization and combustion period, of three sludge samples begins at about 180 • C and ends at about 550 • C. There are two peaks in this period of all the sludge samples, which can be regarded as the devolatilization of two kinds of main organic components in the sludge.…”

Section: Combustion Characteristics Of Coal and Sludge Samplesmentioning

confidence: 96%

“…The second period, called the devolatilization and combustion period, of three sludge samples begins at about 180 • C and ends at about 550 • C. There are two peaks in this period of all the sludge samples, which can be regarded as the devolatilization of two kinds of main organic components in the sludge. In a previous work on paper sludge, the first peak was recognized as the decomposition of hemicellulose and cellulose, while the second corresponded to the decomposition of lignin [26]. The first peak is at about 300 • C and the second one is at about 440 • C. Due to the higher volatile content, the corresponding weight loss rate of S 1 (10.9% min −1 and 5.1% min −1 ) is a slightly larger than S 2 (7.2% min −1 and 3.6% min −1 ) and S 3 (7.7% min −1 and 4.0% min −1 ).…”

Section: Combustion Characteristics Of Coal and Sludge Samplesmentioning

confidence: 96%

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Sludge Acts as a Catalyst for Coal during the Co-Combustion Process Investigated by Thermogravimetric Analysis

2017

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Sewage sludge in China has the characteristics of low organic content and low heating value compared with other developed countries. Self-sustaining combustion of Chinese sludge cannot be achieved when the moisture content is high. Co-combusting a small amount of sludge in the existing coal-fired boilers is a usual sludge disposal method in China. Thermogravimetric (TG) and differential scanning calorimetry (DSC) analysis of a bituminous coal, three different sewage sludges, and their blends have been carried out. Fitted curves by linear calculation and actual curves of blends were compared to study the interaction between sludge and coal in their co-combustion process. The results indicate that the interaction between the two fuels takes place during the devolatilization and combustion period. Sludge acts as a catalyst for coal during the co-combustion process because of the large amount of inorganic salts contained in the sludge. Co-combustion of coal and sludge is more efficient than single burning of the two fuels.

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Section: Combustion Characteristics Of Coal and Sludge Samplesmentioning

confidence: 96%

Section: Combustion Characteristics Of Coal and Sludge Samplesmentioning

confidence: 96%

Sludge Acts as a Catalyst for Coal during the Co-Combustion Process Investigated by Thermogravimetric Analysis

2017

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“…[6][7][8][9][10][11]. Some studies on specific material such as plastic, cellulose and paper have been reported [12][13][14][15][16]. However, co-combustion of treated MSW with coal has not so much been studied yet.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of co-combustion and kinetic study on hydrothermally treated municipal solid waste with different rank coals: A thermogravimetric analysis

2010

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“…The disposal of these wastes is becoming a matter of public concern as a result of their potential environmental and human health impacts. Due to the limits of existing filling capacities, high cost of disposal, and environmental regulations, common disposal routes such as landfill and ocean dumping are no longer viable [1,2]. Accordingly, it is expected that incineration will increase rapidly in the next decade in China.…”

Section: Introductionmentioning

confidence: 99%