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Calcium oxide on coal fly ash cancrinite-type zeolite as a catalyst for biodiesel production

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2019
bitstream_16044.pdf (778.1Kb)
Authors
Pavlović, Stefan
Banković, Predrag
Marinković, Dalibor
Stanković, Miroslav
Conference object (Published version)
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Abstract
This paper discloses the synthesis of new supported catalyst in which the main components of the catalyst, catalyst support and active component, derived from waste material, and its catalytic properties tested in the reaction of the production of biodiesel. Cancrinite-type zeolite catalyst support was synthesized from coal fly ash using hydrothermal technique with NaOH as the activation reagent in a rotating PTFE autoclave reactor. The active component, CaO, was derived from waste chicken eggshells by calcination at 900 °C. Supported catalytic material was synthesized by impregnation. The content of CaO in the prepared catalysts was varied from 5 to 20 wt%. The catalysts were characterized using XRD, FT-IR, SEM, N2-physisorption, and Hg-porosimetry. The methanolysis of sunflower oil was carried out in a batch reactor at 60 °C, with methanol to oil molar ratio of 12:1, and catalyst concentration of 4 wt.%. The fatty acid methyl ester content (% FAME) was analyzed using HPLC method. St...ructural information related to phase identification and vibration of chemical bonds in molecular units indicates that a multiphase zeolitic structure was obtained. The structure of cancrinite-type zeolite was found to be dominantly present. It was found that the catalyst impregnated with 20% of CaO gave the highest FAME percentage of 96.46 for the reaction time of 2 h.

Keywords:
Coal fly ash / Zeolite / CaO / Biodiesel
Source:
Serbian Ceramic Society Conference, ADVANCED CERAMICS AND APPLICATION VIII, New Frontiers in Multifunctional Material Science and Processing, 2019, 43-
Publisher:
  • Serbian Ceramic Society
Projects:
  • Nanostructured Functional and Composite Materials in Catalytic and Sorption Processes (RS-45001)

ISBN: 978-86-915627-7-9

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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/3397
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IHTM

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