2017
DOI: 10.1021/acs.energyfuels.7b01831
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Co-Combustion of Tannery Sludge in a Bench-Scale Fluidized-Bed Combustor: Gaseous Emissions and Cr Distribution and Speciation

Abstract: In this study, 11 coal mono-combustion tests and four co-combustion tests of coal and tannery sludge were conducted on a 35 kW fluidized-bed combustor. The combustion behavior and emission characteristics of the fuels were investigated on a bubbling fluidized bed (BFB) and a circulating fluidized bed (CFB). The effects of an excess air ratio, primary air rate, secondary air ratio, and fuel type on flue gas emissions were studied. The results showed that the fluidization status and temperature distribution had … Show more

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Cited by 11 publications
(5 citation statements)
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“…4,5 SS could be used as a kind of renewable fuel for electricity generation in the existing coal-fired power plants. 6,7 Unfortunately, the moisture content of the dewatered SS is about 73− 84%, which makes the transportation of dewatered SS risky and high cost. 8 Moreover, the high moisture content is detrimental to ignition and combustion.…”
Section: Introductionmentioning
confidence: 99%
“…4,5 SS could be used as a kind of renewable fuel for electricity generation in the existing coal-fired power plants. 6,7 Unfortunately, the moisture content of the dewatered SS is about 73− 84%, which makes the transportation of dewatered SS risky and high cost. 8 Moreover, the high moisture content is detrimental to ignition and combustion.…”
Section: Introductionmentioning
confidence: 99%
“…In the context of biomass exploitation for energy production, the main thermochemical routes include pyrolysis and oxypyrolysis, 2,3 torrefaction, 4 gasification, 5 or combustion. 6 Application to biomass with large moisture content may be hampered by the need for an energy-intensive drying stage. 7 Hydrothermal liquefaction (HTL) represents a promising process for the conversion of wet biomass, such as sewage sludge, into liquid fuels.…”
Section: Introductionmentioning
confidence: 99%
“…Scientific research focuses on the development of a broad portfolio of sustainable technologies to meet ever-growing energy demand. In the context of biomass exploitation for energy production, the main thermochemical routes include pyrolysis and oxy-pyrolysis, , torrefaction, gasification, or combustion . Application to biomass with large moisture content may be hampered by the need for an energy-intensive drying stage .…”
Section: Introductionmentioning
confidence: 99%
“…7 Several countermeasures have been proposed to deal with NO X emissions and bed agglomeration. are air staging, 8,9 temperature adjustment, 10 selective noncatalytic reduction (SNCR), 11 lowering excess air, 12 reburning (fuel staging), 13,14 flue gas recirculation, 15 and fuel blending. 16,17 Hybrid systems such as SNCR, air staging, 11 and reburning combined with SNCR (advanced reburning) 18,19 have also been investigated.…”
Section: Introductionmentioning
confidence: 99%
“…Several countermeasures have been proposed to deal with NO X emissions and bed agglomeration. Primary measures employed for NO X emission control in fluidized bed combustion are air staging, , temperature adjustment, selective non-catalytic reduction (SNCR), lowering excess air, reburning (fuel staging), , flue gas recirculation, and fuel blending. , Hybrid systems such as SNCR, air staging, and reburning combined with SNCR (advanced reburning) , have also been investigated. In comparison, countermeasures against bed agglomeration include the use of alternative bed materials, ,, additives, , cocombustion, , and biomass pretreatment. , Techniques for overcoming these two issues normally target each area independently.…”
Section: Introductionmentioning
confidence: 99%