Major gas emissions from combustion of slurry fuels based on coal, coal waste, and coal derivatives

Dmitrienko, Margarita A.; Nyashina, Galina S.; Стрижак, П. А.

doi:10.1016/j.jclepro.2017.12.254

Cited by 81 publications

(18 citation statements)

References 43 publications

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“…Studying the overall environmental performance of these materials was outside the scope of this work. Further research could aim to estimate the gas emissions of the briquettes in order to provide an indication of environmental friendliness, similar to studies available on coal-water slurries [ 33 , 34 ]. For example, previous studies [ 35 ] have demonstrated that NOx and SOx emissions can vary dramatically depending on fuel additives.…”

Section: Resultsmentioning

confidence: 99%

Development and characterisation of charcoal briquettes from water hyacinth (Eichhornia crassipes)-molasses blend

et al. 2018

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Charcoal briquettes are inexpensive solid fuels made from carbonized biomass. The potential of converting water hyacinth (Eichhornia crassipes) charcoal into briquettes with molasses as binder was investigated in this study. Dried water hyacinth was carbonized at a temperature between 350°C to 500°C in a fabricated fine biomass carbonizer. A solution containing 80% by weight molasses was used in the production of briquettes having different charcoal/molasses ratios of 40:60, 30:70, and 20:80. Each briquette was characterized in terms of bulk density, calorific value, compressive strength, proximate analysis and micro-structure by Scanning Electron Microscopy. Charcoal briquettes were tested for their flammable characteristics through their burning rates and ignition time. Altering the molasses to charcoal ratio affected the quality and characteristics of the briquettes. Volatile combustible matter and fixed carbon increased with increasing amount of binder while ash content decreased. The 30:70 charcoal/molasses ratio produced the highest calorific value (16.6 MJ/kg) and compressive strength (19.1 kg/cm2). The results have shown the potential of converting water hyacinth into an alternative fuel source.

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Section: Resultsmentioning

confidence: 99%

Development and characterisation of charcoal briquettes from water hyacinth (Eichhornia crassipes)-molasses blend

et al. 2018

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“…Human activities are causing the concentration of carbon dioxide in the atmosphere to steadily rise, contributing to global warming [2]. Traditional fuel combustion is an important source of dangerous emissions (COx, NOx, SOx, etc) [3,4]. Thus, reducing the use of energy from non-renewable resources may lead to a decrease in such emissions [5].…”

Section: Preliminariesmentioning

confidence: 99%

Impact of Economic Growth and Energy Consumption on Greenhouse Gas Emissions: Testing Environmental Curves Hypotheses on EU Countries

2018

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This study analyses the relationship between per capita greenhouse gas (GHG) emissions, gross domestic product, gross inland energy consumption, and renewable energy consumption for a panel of 28 countries of European Union in the period 1990–2016. Two theoretical models, a quadratic and a cubic one, are used to estimate the shape of the environmental curve and to test the Kuznets hypothesis. The panel cointegration approach proved the existence of long-run equilibrium relations among the four macroeconomic indicators. Empirical estimations, using panel data techniques, as well as heterogeneous regression for each individual country in the panel, show non-conclusive evidence for the environmental Kuznets curve (EKC) hypothesis. The least square estimates, with the variables in log per capita form, reveal that the inverted U-shaped EKC hypothesis is verified for the panel and for 17 of the 28 EU countries. Estimates of the cubic model show that the environmental curve has an inverted N-shaped form. These results do not hold when the values are in non-logarithmic form. In addition, the estimations for all models show that an increase of gross energy consumption leads to an increase of GHGs, while an increase of renewable energy consumption leads to a reduction in GHG emissions.

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“…During the combustion of the slurry fuel, water existence decreases the flame temperature in the combustion chamber and it reduces the possibility of the NOx formation. The possibility of obtaining low NOx emissions was confirmed by the Institute's own research ( Figure 4) and by research conducted in other centers [13]. The possibility of arranging independent burners at selected levels causes more uniform temperature field in the furnace chamber and improve the operation of additional NOx emission reduction systems.…”

Section: Fig 3 Configuration Of Operation Of Mill Sets At Low Loadmentioning

confidence: 79%

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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Major gas emissions from combustion of slurry fuels based on coal, coal waste, and coal derivatives

Cited by 81 publications

References 43 publications

Development and characterisation of charcoal briquettes from water hyacinth (Eichhornia crassipes)-molasses blend

Development and characterisation of charcoal briquettes from water hyacinth (Eichhornia crassipes)-molasses blend

Impact of Economic Growth and Energy Consumption on Greenhouse Gas Emissions: Testing Environmental Curves Hypotheses on EU Countries

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

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