Emission characteristics of PCDD/Fs, PAHs and PCBs during the combustion of sludge-coal water slurry

Zhao, Xiaoli; Zhu, Wei; Huang, Jiung-Yao; Li, Ming; Gong, Miao

doi:10.1016/j.joei.2014.07.005

Cited by 45 publications

(15 citation statements)

References 26 publications

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“…This is the only reason of low NOx productions. [6] But there is also a down side. We need to make modifications in the internal design of the existing and new boiler\steam generation systems.…”

Section: Recommendationsmentioning

confidence: 99%

Preparation and investigation of coal slurry fuel blended with industrial wastewater for use in thermal power generation

Akhtar

2018

SJET

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The scientific novelty of the research is that coal slurry fuels have been prepared by blending pulverized coal with industrial effluents and characteristics were compared with the slurry comprising fresh water. This innovative technique results in saving fresh water. Also, this methodology puts local coal reserves of Pakistan to use in an innovative way which is both efficient and friendlier. This novel idea puts local coal in use for power production. The coal in Pakistan in not in use because of the difficulties in mining and also due to the lack of concern of the government regarding using countries own resources for power production. Instead the policies regarding importing expensive fuels from Gulf States are a common practice. The novelty of this idea serves the idea of both greener and sustainability of energy.

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Section: Recommendationsmentioning

confidence: 99%

Preparation and investigation of coal slurry fuel blended with industrial wastewater for use in thermal power generation

Akhtar

2018

SJET

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“…The idea of burning slurry fuels, also known as coal-water suspension or Coal Water Slurry (CWS), was intensively developed in the 1980s. The combustion of slurry fuel may be carried out in fluidised bed boiler [1], as well as by employing a burner in which fuel is sprayed behind the nozzle [2]. China is recognized as the largest producer and user of slurry fuels (carbon-water suspensions) [3].…”

Section: Introductionmentioning

confidence: 99%

Combustion of coal water slurry-technology enabling the achievement of a reduced technical minimum of the boiler

et al. 2019

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The idea of combustion of suspended fuels was developed in the 1980s. The largest producer and user of slurry fuels (Coal Water Slurry, CWS) is China [3]. Despite of several decades of CWS research history, investigations are still carried out to improve the parameters of disperse fuels and to improve the combustion of these fuels. The close relationship between the properties of slurry fuels and number of parameters (mainly the type and properties of the coal feedstock) generates the necessity of CWS receipts and determines for what purposes the fuel may be destined. In the case of the use of coal sludge, the resulting slurry allows for the combustion / "disposal" of coal slurry in pulverized boilers. In the case of using better quality fine coal fractions in CWS production, a slurry will be created allowing for achieving the crucial technological goal such as operation of power units with a reduced technical minimum.

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“…In addition to the analysis of cocombustion of coal and biomass, some of the known studies (in particular − ) consider the possibility of using various kinds of household and industrial waste in the composition of coal–water slurry (CWS). Coals of different metamorphic grade and coal flotation waste (filter cakes) , may be used as main components for the preparation of slurry fuels.…”

Section: Introductionmentioning

confidence: 99%

“…A dispersed medium , may be water of different quality (contaminated or pure). Oil sludge, waste automobile and industrial oils, water–oil emulsions, fuel oil, kerosene, alcohols, and solvents may serve as additives (usually with a concentration of 5–20%). Such additives are introduced to improve the parameters of ignition and combustion of slurry and to increase its combustion heat.…”

Section: Introductionmentioning

confidence: 99%

Industrial Waste as Part of Coal–Water Slurry Fuels

et al. 2018

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Industrialized regions of the world are actively polluting the environment. In this research, we consider one of the developed industrial regions, Siberia (Russia), as an example. The paper presents typical volumes of annually stored waste, in particular, waste of oil production and a refinery (76 800 tons), liquid and watered waste of the municipal sector (167 875 tons), and food waste (5906 tons). The parameters of ignition and combustion of such wastes are studied in the compositions of coal–water slurry fuels with petrochemicals. The experimental results demonstrate that most of the wastes in the industrial region under study have high potential (according to environmental, economic, and energy criteria) as additives to fuels. In particular, a comprehensive comparative analysis shows that the ignition delay time for fuel slurries with waste can be reduced by 10–60%; the minimum ignition temperature, by 10–45 °C; and concentrations of NO x and SO2 emissions, by 5–50%. The combustion heat of composite fuels can be increased by 5–20% when using admixtures from industrial waste.

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Emission characteristics of PCDD/Fs, PAHs and PCBs during the combustion of sludge-coal water slurry

Cited by 45 publications

References 26 publications

Preparation and investigation of coal slurry fuel blended with industrial wastewater for use in thermal power generation

Preparation and investigation of coal slurry fuel blended with industrial wastewater for use in thermal power generation

Combustion of coal water slurry-technology enabling the achievement of a reduced technical minimum of the boiler

Industrial Waste as Part of Coal–Water Slurry Fuels

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