Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13091/2456
Title: CLEANING OF BEYSEHIR (BAYAVSAR) COAL IN TURKEY WITH HYDROPHOBIC FLOCCULATION USING WASTE MOTOR OIL
Authors: Ağaçayak, Tevfik
Ağca, Osman
Keywords: Lignite
hydrophobic flocculation
combustion recovery
waste motor oil
contact angle
Beysehir
Turkey
Fine Coal
Agglomeration
Flotation
Optimization
Issue Date: 2021
Publisher: Univ Alexandru Ioan Cuza Iasi, Editura Univ
Abstract: In this study, the hydrophobic flocculation behavior of lignite coal obtained from Beysehir region in Turkey and the effect of some parameters were investigated. These parameters were selected as pH, amount of dispersant, amount of binding liquid, flock growth time, stirring speed, flocculation time and solid ratio. The ash content (ash, %) and combustible recovery (CR, %) of the flocks obtained as a result of the experiments were determined. As a result of the studies, the optimum pH value (3), amount of sodium silicate (1 mL), amount of waste motor oil (3 mL), flock growth time (1 min), stirring speed (1250 rpm), flocculation time (2 min) and solid ratio (5 g) were determined. The hydrophobicity of fine coal grains was increased by using waste motor oil. According to the hydrophobic flocculation results of coal grains, flocks with 17.03% ash content and 99.06% combustion recovery were obtained. While the contact angle of the original coal was 44 degrees, it was observed that the contact angle of the obtained flocks reached 117 degrees. It was determined from experiments that the surfaces of the coal grains have a very high hydrophobicity. As a result, clean coal with a reduced ash content of 53.22% was obtained.
URI: https://doi.org/10.47743/achi-2021-1-0005
https://hdl.handle.net/20.500.13091/2456
ISSN: 2067-2438
2067-2446
Appears in Collections:Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections

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