Pelletizing Tests of Waste Anthracite Dust

Rejdak, Michał; Winkler, R; Supernok, Krzysztof; Ignasiak, Karina

doi:10.12912/23920629/64526

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…Despite a number of these advantages, low bulk density of the pyrolysis products, their porous structure and excessive fragility may cause logistical problems (high transport costs, large storage areas), as well as excessive dust emissions, resulting in an increased explosion hazard [21]. However, these problems can be eliminated by the pressure agglomeration, the most commonly used method for compaction of powdery materials including biomass [21,[26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Utilization of waste forest biomass: pelletization studies of torrefied sawmill wood chips

et al. 2019

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The paper presents the effects pelletization process of torrefied waste forest biomass -sawmill wastes. The sawmill waste are generated in significant quantities and has significant energy potential. The use of torrefaction and pelletization process enables to produce mechanically durable fuel pellets. Aim of the studies was to evaluate the effect of different kind of additives (binders) to torrefied waste forest biomass on pelletization process characteristic (production capacity, energy consumption) and properties of produced pellets (i.e. density, mechanical durability). The most effective binder among the tested was modified wheat starch. Pellets made with this addition were characterized by the highest mechanical strength.

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Section: Introductionmentioning

confidence: 99%

Utilization of waste forest biomass: pelletization studies of torrefied sawmill wood chips

et al. 2019

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Research on the Production of Composite Fuel on the Basis of Fine-Grained Coal Fractions and Biomass—The Impact of Process Parameters and the Type of Binder on the Quality of Briquettes Produced

et al. 2019

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This paper presents the partial results of a study on obtaining compacted fuel from fine-grained coal fractions and biomass. The aim of the study was to determine the impact of selected parameters of the extrusion process and the applied binder (mechanical durability and density of the products). The fuels were formulated using the extrusion process. Raw materials used in the research were: Fine-grained coal (flotation concentrates), biomass (hydrolytic lignocellulose), and a wide spectrum of organic and mineral binders and their compositions. During the investigations, the variable factors were the following: Extrusion pressure, preparation of the mixtures for extrusion (mixing time and temperature of the mixture), composition of the extruded mixtures (share of fine-grained coal and biomass and type of binder). It was found that it is possible to extrude mechanically durable briquettes from mixtures containing fine-grained coal products and biomass. Under the conditions of the experiment, the most favorable mechanical durability was characterized by briquettes containing in their composition 90% of coal and 6% of biomass (in relation to the dry state). The briquettes with the most favorable physico-mechanical properties were obtained using organic binders-Starch (based on wheat and potato starch) and cellulose derivatives. regulated the quality requirements for solid fuels [2], the requirements for fuels introduced to the market and used in households and combustion plants with a nominal thermal power lower than 1 MW. In addition to the abovementioned legal provisions, anti-smog resolutions of individual self-government bodies came into force, which, using the amendment introduced in art. 96 in the Act on Environmental Protection Law [3], regulate types of fuels that cannot be used in individual heating in their area. The quoted legal provisions in practice mean the elimination of flotation concentrates and coal sludges from the market, and consequently, from the primary market of boilers-Devices that do not meet the requirements for class 5 boilers in accordance with standard PN-EN 303-5:2012 [4] (practically: Manual feed boilers).The elimination of flotation concentrates and coal sludges from the market may cause them to be deposited in the environment and, consequently, affects the loss of their energy potential. In general, flotation is a process widely used in the processing of minerals, including coal [5,6]. This is particularly important for flotation concentrates, which are characterized by relatively good quality parameters, and their only drawback is very fine grain size that results in excessive emission of dust during the combustion. In turn, the withdrawal of manual feed boilers that do not meet the requirements for class 5 boilers according to PN-EN 303-5:2012 [4] will increase the number of automatic boilers used in individual heating, and thus increase the demand for fuel for them (mainly qualified fuels like eco pea coals and culm). Taking into account the emerging market potential resulting f...

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Pelletizing Tests of Waste Anthracite Dust

Cited by 2 publications

References 6 publications

Utilization of waste forest biomass: pelletization studies of torrefied sawmill wood chips

Utilization of waste forest biomass: pelletization studies of torrefied sawmill wood chips

Research on the Production of Composite Fuel on the Basis of Fine-Grained Coal Fractions and Biomass—The Impact of Process Parameters and the Type of Binder on the Quality of Briquettes Produced

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