Investigation on the Combustion Behavior of Coal at Various Level of Washing in TGA and Drop Tube Furnace
21 Nov 2019-Transactions of The Indian Ceramic Society (Taylor & Francis)-Vol. 78, Iss: 4, pp 181-186
TL;DR: In this article, a cleaning of coal resulted in ash reduction, heat value enhancement, increased reactive maceral content and change in ash composition influencing combustion performance, and with washed fractions, trend...
Abstract: Cleaning of coal resulted in ash reduction, heat value enhancement, increased reactive maceral content and change in ash composition influencing combustion performance. With washed fractions, trend...
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Cites background from "Investigation on the Combustion Beh..."
...Sasu et al.(28) discovered that the water washing not only enhanced the ash reduction rate but also increased the burn-out efficiency....
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...Sasu et al.28 discovered that the water washing not only enhanced the ash reduction rate but also increased the burn-out efficiency....
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TL;DR: In this article, the feasibility of coal combustion of sludge with coal using preliminary testing methods, such as thermogravimetric, ultimate and proximate analysis followed by combustion experiments was examined.
11 citations
TL;DR: In this article, the yttrium orthovanadate (YVO4) nanopowder has been synthesized via solution combustion route using citric acid as fuel, and the primary aim is to establish a facile solution combusti...
Abstract: In the present work, yttrium orthovanadate (YVO4) nanopowder has been synthesized via solution combustion route using citric acid as fuel. The primary aim is to establish a facile solution combusti...
2 citations
TL;DR: In this paper , the authors analyzed the flue gas emission characteristics during the operation value of PM (482 mg/Nm3) for coal mixed sludge at the ratio of 3:2.
TL;DR: In this paper , the combustion performance of various oil palm wastes in comparison to coal was investigated, and it was shown that palm leaves, empty fruit bunch, and palm fronds with clean probe observation have a relatively low tendency of slagging and fouling and can be recommended as biomass fuel for co-firing.
Abstract: Abstract Biomass serves as an alternative energy solution for decarbonizing coal-fired power plants, which have been reactivated in several countries due to the global energy crisis. Oil palm waste, owing to its abundant availability, holds significant potential as a biomass fuel. This study aimed to investigate the combustion performance of various oil palm wastes in comparison to coal. Biomass combustion is associated with ash-related problems such as slagging, fouling, and corrosion, which may accelerate ash deposit acceleration, reduce heat transfer, and damage refractory equipment in boilers. Ash-related problems were evaluated using the method commonly adopted for solid fuel, including experimental drop tube furnace combustion and ash observation. The results indicate that each oil palm waste has different combustion characteristics. Palm leaves, empty fruit bunch, and palm fronds with clean probe observation have a relatively low tendency of slagging and fouling and can be recommended as biomass fuel for co-firing. However, their high alkali and iron contents need to be considered. Palm fiber has similar combustion characteristics to coal, but it has a high slagging and fouling tendencies. The palm stems with high chlorine content have a high corrosion tendency confirmed by probe observation, scanning electron microscopy, and X-ray diffraction analyses.
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TL;DR: In this article, a char morphology system based on the physical and optical characteristics known to influence the burning of pulverized coal is outlined, and the proportions of different pyrolysis char types produced by any coal are shown to depend on coal rank, petrographic composition, maceral fusibility, and possibly ash content and composition.
207 citations
TL;DR: The physical and chemical transformation of excluded crystalline illite particles and of illite grains included within a carbon matrix were examined in a laboratory scale reactor as discussed by the authors, where electron microscopy was used to determine the particle morphology and energy dispersive X-ray analysis, Mossbauer spectroscopy, and XAFS expectroscopy were used to monitor the chemical changes.
166 citations
TL;DR: In this article, the chemical and mineral composition of the Pernik subbituminous coals and their preparation and combustion solid waste products were studied, and the results indicate some technological problems and possible environmental pollution of the air, water, soil and vegetation with certain elements in the areas surrounding both thermoelectric power station and coal preparation plant.
120 citations
TL;DR: In this paper, the authors studied the combustion behavior of two Indian coals of same rank with wide variation in mineral matter content using Thermogravimetric Analyzer (TGA) and Drop Tube Furnace (DTF).
105 citations
TL;DR: In this paper, the combustion properties of separated single coal maceral fractions from a rank series of coals were determined based on the burning profile in a TGA apparatus and the results indicated that most of the reactivity and combustion profile parameters varied significantly with coal rank and that all of the rank trends observed were best defined in the data from the single maceral samples which were more reproducible, more linear, and less variable.
91 citations