A CaO/zeolite-based catalyst obtained from waste chicken eggshell and coal fly ash for biodiesel production

Pavlović, Stefan; Marinković, Dalibor; Kostić, Milan D.; Janković-Čaštvan, Ivona; Mojović, Ljiljana; Stanković, Miroslav; Veljković, Vlada B.

doi:10.1016/j.fuel.2020.117171

Cited by 79 publications

(38 citation statements)

References 60 publications

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“…Such prepared ESs were calcined at 900 °C during 4 h (heating rate of 5 °C min −1 ) and the obtained sample was denoted as ES-900. In order to improve textural and basicity properties, the calcined ESs were underwent the hydration–dehydration procedure described elsewhere [ 1 ]. The hydration was performed in the three-neck round bottom flask at 60 °C, 6 h with the solid/liquid ratio of 1:5.…”

Section: Methodsmentioning

confidence: 99%

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Transesterification of Sunflower Oil over Waste Chicken Eggshell-Based Catalyst in a Microreactor: An Optimization Study

et al. 2021

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The statistical experimental design (DoE) and optimization (Response Surface Methodology combined with Box–Behnken design) of sunflower oil transesterification catalyzed by waste chicken eggshell-based catalyst were conducted in a custom-made microreactor at 60 °C. The catalyst was synthesized by the hydration–dehydration method and subsequent calcination at 600 °C. Comprehensive characterization of the obtained catalyst was conducted using: X-ray powder diffractometry (XRD), X-ray fluorescence (XRF), Fourier-transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), N2 physisorption, and Hg-porosimetry. Structural, morphological, and textural results showed that the obtained catalyst exhibited high porosity and regular dispersity of plate-like CaO as an active species. The obtained optimal residence time, catalyst concentration, and methanol/oil volume ratio for the continuous reaction in microreactor were 10 min, 0.1 g g−1, and 3:1, respectively. The analysis of variance (ANOVA) showed that the obtained reduced quadratic model was adequate for experimental results fitting. The reaction in the microreactor was significantly intensified compared to a conventional batch reactor, as seen through the fatty acid methyl esters (FAMEs) content after 10 min, which was 51.2% and 18.6%, respectively.

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Section: Methodsmentioning

confidence: 99%

“…The worldwide environmental problems (global warming, climate change, biodiversity concern, and different types of pollution) caused by the use of fossil fuels and solid waste disposal lead to intensive research in the field of sustainable processes of chemical and fuel production [ 1 , 2 ]. Biodiesel is one of these alternative fuels.…”

Section: Introductionmentioning

confidence: 99%

Transesterification of Sunflower Oil over Waste Chicken Eggshell-Based Catalyst in a Microreactor: An Optimization Study

et al. 2021

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“…The study (Pavlovic et al, 2020 ) showed that pure calcined eggshell exhibits great catalytic potential in biodiesel production. The catalytic activity and stability increased especially if the calcium oxide is dispersed over catalytic support, whereby the leaching of the active species is significantly reduced.…”

Section: Eggshell In Catalysismentioning

confidence: 99%

“…Special attention should be drawn to the organic part of the eggshell, which can be transformed into unburned carbon, which leads to a formation of material with high specific surface area and pores in the micro-region (Manique et al, 2017 ). The biodiesel production is strongly influenced by intra-catalyst mass transport limitations, which are due to the slow diffusion of high molecular weight triacylglycerol molecules inside the catalyst process (Pavlovic et al, 2020 ). This is precisely the reason why it is important to make eggshell modification in terms of adjusting the specific surface area, and obtaining a system of available pores and channels with the adequate positioning of the active catalytic species.…”

Section: Eggshell In Catalysismentioning

confidence: 99%

State-of-the-Art of Eggshell Waste in Materials Science: Recent Advances in Catalysis, Pharmaceutical Applications, and Mechanochemistry

Baláž

Болдырева

Rybin

et al. 2021

Front. Bioeng. Biotechnol.

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Eggshell waste is among the most abundant waste materials coming from food processing technologies. Despite the unique properties that both its components (eggshell, ES, and eggshell membrane, ESM) possess, it is very often discarded without further use. This review article aims to summarize the recent reports utilizing eggshell waste for very diverse purposes, stressing the need to use a mechanochemical approach to broaden its applications. The most studied field with regards to the potential use of eggshell waste is catalysis. Upon proper treatment, it can be used for turning waste oils into biodiesel and moreover, the catalytic effect of eggshell-based material in organic synthesis is also very beneficial. In inorganic chemistry, the eggshell membrane is very often used as a templating agent for nanoparticles production. Such composites are suitable for application in photocatalysis. These bionanocomposites are also capable of heavy metal ions reduction and can be also used for the ozonation process. The eggshell and its membrane are applicable in electrochemistry as well. Due to the high protein content and the presence of functional groups on the surface, ESM can be easily converted to a high-performance electrode material. Finally, both ES and ESM are suitable for medical applications, as the former can be used as an inexpensive Ca2+ source for the development of medications, particles for drug delivery, organic matrix/mineral nanocomposites as potential tissue scaffolds, food supplements and the latter for the treatment of joint diseases, in reparative medicine and vascular graft producing. For the majority of the above-mentioned applications, the pretreatment of the eggshell waste is necessary. Among other options, the mechanochemical pretreatment has found an inevitable place. Since the publication of the last review paper devoted to the mechanochemical treatment of eggshell waste, a few new works have appeared, which are reviewed here to underline the sustainable character of the proposed methodology. The mechanochemical treatment of eggshell is capable of producing the nanoscale material which can be further used for bioceramics synthesis, dehalogenation processes, wastewater treatment, preparation of hydrophobic filters, lithium-ion batteries, dental materials, and in the building industry as cement.

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“…A síntese tradicional de zeólitas utiliza hidrogéis como matéria prima. No entanto, diversos estudos e pesquisas são produzidos propondo diferentes métodos de síntese de zeólitas a partir de cinzas de biomassa (PAVLOVIC et al, 2020). A maioria dos estudos utiliza como matéria-prima cinzas volantes de carvão como fonte de silício e alumínio para a produção de diversas zeólita.…”

Section: Introductionunclassified

Efeito Da Granulometria Da Fibra De Coco Verde Na Adsorção De Compostos Provenientes Do Petróleo

Coutinho¹,

Santana²,

Iguti³

2020

As Engenharias E Seu Papel No Desenvolvimento Autossustentado

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Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição 4.0 Internacional (CC BY 4.0). O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais.

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A CaO/zeolite-based catalyst obtained from waste chicken eggshell and coal fly ash for biodiesel production

Cited by 79 publications

References 60 publications

Transesterification of Sunflower Oil over Waste Chicken Eggshell-Based Catalyst in a Microreactor: An Optimization Study

Transesterification of Sunflower Oil over Waste Chicken Eggshell-Based Catalyst in a Microreactor: An Optimization Study

State-of-the-Art of Eggshell Waste in Materials Science: Recent Advances in Catalysis, Pharmaceutical Applications, and Mechanochemistry

Efeito Da Granulometria Da Fibra De Coco Verde Na Adsorção De Compostos Provenientes Do Petróleo

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