Combustion of refuse derived fuel in a fluidized bed

Piao, Guilin; Aono, Shigeru; Mori, Shigekatsu; Deguchi, Seiichi; Fujima, Yukihisa; Kondoh, Motohiro; Yamaguchi, Masataka

doi:10.1016/s0956-053x(98)00140-8

Cited by 22 publications

(11 citation statements)

References 1 publication

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“…Other types of storage and disposal (namely storage of waste fuel in heaps for incineration and landfilling), cause pollutant emissions and their effect on the environment have been assessed and pollutants measured (Marques, 2000;Roukoja¨rvi et al, 1995a,b;Bergstro¨m and Bjo¨rner, 1992;Launhardt et al, 1998;EU, 1996EU, , 1997EU, , 2000EU, , 2001. Several studies on incineration process, the combustion of refuse derived fuels (RDF) and the fate of pollutants have been carried out by various authors (Piao et al, 1998(Piao et al, , 2000Morselli et al, 2002;van der Sloot et al, 2001;Sakai and Hirooka, 2000), however there has been no studies on the incineration of baled waste fuel in relation to the emission of pollutants.…”

Section: Introductionmentioning

confidence: 99%

Emissions from a controlled fire in municipal solid waste bales

Nammari¹,

Hogland²,

Marques³

et al. 2004

Waste Management

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Section: Introductionmentioning

confidence: 99%

Emissions from a controlled fire in municipal solid waste bales

Nammari¹,

Hogland²,

Marques³

et al. 2004

Waste Management

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“…Similar to Piao et al (1998), but with regard to multiple hearth sludge incineration, Quinn et al (1996) showed conflicting behavior of CO and NOx in terms of the impacts of temperature and excess air. NOx emissions generally increase with excess air and the effect is more pronounced at higher temperatures.…”

Section: Review Of Sewage Sludge Incineration and Emissions Controlmentioning

confidence: 94%

“…In burning refused derived fuel (89% TS and 86%VS) in a bench scale fluid bed, Piao et al (1998) found that excess air increases NOx but reduces CO emissions. Similar to Piao et al (1998), but with regard to multiple hearth sludge incineration, Quinn et al (1996) showed conflicting behavior of CO and NOx in terms of the impacts of temperature and excess air.…”

Section: Review Of Sewage Sludge Incineration and Emissions Controlmentioning

confidence: 99%

Minimization of Major Air Pollutants From Sewage Sludge Fluid Bed Incinerators

Dangtran¹,

Holst²

2001

proc water environ fed

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Emissions of major air pollutants including carbon monoxide (CO), nitrogen oxides (NOx) and mercury (Hg) were studied at two sewage sludge fluidized bed combustion (FBC) plants. Both the North West Bergen (NWB) County Utility Authority and the Little Miami (LM) plants have air pollution control systems (APCS) that are of the wet type. Various operating conditions such as temperature, excess air, fuel and feed properties, concentration of calcium chloride, and the method of operating were investigated to determine their effect on the emissions.Results of the study reveal that NOx increase with increased bed temperatures and excess air. CO is lower at higher freeboard temperatures.Both CO and NOx emissions are strongly dependent on the feed characteristics. CO and NOx fluctuate more with higher sludge solid content (TS). They increase not only with TS, but also with the sludge volatile solids (VS) and its heat content. NOx increase with the ratio of sludge oxygen over sludge nitrogen concentration. They are also higher with fuel oil than with natural gas when selected as the auxiliary fuel source.CO and NOx emissions are also higher and fluctuate more when the operation is not run consistently; when the feed quality is inconsistent, or when the feeding is intermittent or interrupted, or when the roof sprays are activated. It is believed that the feed characteristics and mode of operating affect the flame temperature and the excess air surrounding the combusting materials, which in turn have an impact on CO and NOx emissions.While some of the mercury (Hg) vapor is removed by condensation due to flue gas cooling, the addition of calcium chloride to the feed has shown a clear reduction in both emissions of NOx and Hg. It is believed that calcium chloride can generate strong oxidants, promoting the oxidation of both elemental mercury and NOx into more soluble forms, which can then be separated from the exhaust gas in a wet scrubber.

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“…Refuse Derived Fuel (RDF) is produced from combustible components of municipal solid waste (Piao et al, 1998;Caputo and Pelagagge, 2002;Gendebien et al, 2003;Rotter et al, 2004;UNEP, 2005;Weber et al, 2009). The waste is shredded, dried and baled and then burned to produce electricity (Consonni et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Recycle of Plastic Bag Wastes with Organic Wastes to Energy for RDF Productions

Kan¹,

Kungkajit²,

Kaosol³

2017

American Journal of Applied Sciences

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This paper studies the utilization potential of Refuse Derived Fuel (RDF) approach to recover the discarded plastics from Hatyai solid waste disposal site in Songkhla province, Thailand. The excavated plastic bag wastes from the closure landfill of Hatyai, unused plastic bag wastes and waste residues are the raw materials for RDF productions. The raw materials are characterized for proximate analysis and ultimate analysis. The RDF5 (Densified RDF) with different raw materials are produced and characterized in this study. All raw materials have low moisture content, high volatile solids, low ash content and low fixed carbon. Thus, these raw materials are suitable for RDF productions. Due to low sulfur content, the combustion of these RDFs has no risk for the global warming and acid rain cause. The various RDFs in this study include a plastic bag wastes-palm fronds-RDF (PP-RDF), an unused plastic bag wastes-palm fronds-RDF (UPP-RDF), a plastic bag wastes-palm fronds-cassava peels-RDF (PPCRDF) and a plastic bag wastes-palm leaves-rubber wastes-RDF (PPRRDF). The various RDFs are provided the good physical and chemical properties. The higher heating value (HHV) of PP-RDF, UPP-RDF, PPCRDF and PPR-RDF is 5,725, 5,674, 5,548 and 5,872 kcal/kg, respectively. The HHV of various RDFs is higher than the HHV criterion for RDF in the briquette form. Therefore, the plastic-wastes RDF has the potential for energy as solid fuels for kiln. According to this study, the plastic-bagwastes RDF in the briquette form is suitable for renewable energy.

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Combustion of refuse derived fuel in a fluidized bed

Cited by 22 publications

References 1 publication

Emissions from a controlled fire in municipal solid waste bales

Emissions from a controlled fire in municipal solid waste bales

Minimization of Major Air Pollutants From Sewage Sludge Fluid Bed Incinerators

Recycle of Plastic Bag Wastes with Organic Wastes to Energy for RDF Productions

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