Application of pyrolysis residue from waste materials in black coal flotation

Fečko, Peter; Kašpárková, Alena; Pertile, Eva; Kříž, V.; Tora, B.; Jarosiński, Andrzej; Janáková, Iva

doi:10.2478/v10026-010-0020-3

Cited by 7 publications

(4 citation statements)

References 1 publication

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“…In addition, a peak at 1602 cm −1 corresponding to stretching vibrations of the C=C bond found in alkenes was noticed in sample PO18-H-0.09 [48]. The presence of this bond in the test sample may be indicative of poor polymerization of the oil in the oil matrix [40]. EDS X-ray analysis of the solids showed that they consisted mainly of carbon, oxygen, and silicon.…”

Section: Oil Blocks Based On Post-pyrolysis Oilsmentioning

confidence: 94%

“…The first is located at a wave number of 1055 cm −1 and corresponds to bending vibrations of C-H bonds present in aromatic compounds. The peaks present at 777 and 694 cm −1 originate from the bending vibrations of the C-H bonds of single-substituent aromatic compounds [38][39][40]. For samples PO18-H-0.09 and PO24-H-0.135, there are distinct peaks at 2942, 2918, and 2852 cm −1 corresponding to stretching vibrations of C-H bonds.…”

Section: Oil Blocks Based On Post-pyrolysis Oilsmentioning

confidence: 98%

“…They testify to the presence of di-and tri-substituted alkenes. In the case of catalyzed PO-L with a catalyst-to-catalyzed-oil mass ratio of 0.135, the peaks corresponding to these compounds occur at a wave number of 875 cm −1 [39,40]. The peaks at 728 and 697 cm −1 can be attributed to single-substituted aromatic compounds.…”

Section: Pyrolytic Oilmentioning

confidence: 98%

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Assessment of the Environmental Impact of Solid Oil Materials Based on Pyrolysis Oil

Staroń,

Kijania-Kontak,

Dziadas

et al. 2023

Materials

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One method of managing used car tires is decomposition by thermochemical conversion methods. By conducting the process at temperatures of 450–750 °C, three fractions are obtained from tires: oil, gas, and solid. The liquid product of the pyrolysis of used car tires is pyrolysis oil, which consists of aromatic, polyaromatic, and aliphatic hydrocarbons. Unconventional building materials were obtained from tire pyrolysis oil and the environmental impact was evaluated. Blocks made from pyrolysis oil showed mechanical strength of up to about 1700 N. No heavy metals or polycyclic aromatic hydrocarbons, which were found in the crude heavy-PO fraction, were detected in the filtrates after incubation of the block obtained from the heavy-PO fraction at 240 °C. The highest inhibition of Sorghum saccharatum shoot (74.4%) and root (57.5%) growth was observed for solid materials from the medium-PO fraction obtained at 240 °C. The most favorable values of the parameters for the process of obtaining blocks based on post-PO were an annealing temperature of 180 °C, time of 20 h, and mass ratio of catalyst to catalyzed oil of 0.045.

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Section: Oil Blocks Based On Post-pyrolysis Oilsmentioning

confidence: 94%

Section: Oil Blocks Based On Post-pyrolysis Oilsmentioning

confidence: 98%

See 1 more Smart Citation

Assessment of the Environmental Impact of Solid Oil Materials Based on Pyrolysis Oil

Staroń,

Kijania-Kontak,

Dziadas

et al. 2023

Materials

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“…C-H deformation vibrations occur at wave numbers of 776-781 cm −1 . The peaks observed around 690 cm −1 originate from the bending vibrations of C-H bonds in mono-substituted aromatic compounds [40][41][42]. Peaks in the range of 570-620 cm −1 originate from the asymmetric and symmetric stretching vibrations of the Zn-O bonds in the structure of zinc oxide.…”

Section: Sorption and Photocatalytic Effect Of Composite Materialsmentioning

confidence: 99%

Sorption and Photocatalysis of Dyes on an Oil-Based Composite Enriched with Nanometric ZnO and TiO2

Staroń

2023

Sustainability

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Sustainable development and environmental protection are among the most important challenges facing humanity today. One important issue is the problem of groundwater and surface water pollution which can lead to the degradation of aquatic ecosystems and negatively affect human health. As a result, new methods and materials are being sought that can help remove contaminants from water in an efficient and environmentally friendly manner. In recent years, there has been increasing interest in composite materials made from used cooking oil. This paper presents attempts to obtain composite materials with the addition of nano-sized zinc oxide and titanium oxide. The characterization of the composite materials was performed using FTIR, XRD, and SEM-EDS; their sorption and photocatalytic abilities were studied using batch mode experiments. The materials obtained exhibited sorption and photocatalytic properties. The highest value of photodegradation efficiency of more than 70% was recorded for the oil composite containing 20% zinc oxide. Composites containing 10% zinc oxide and titanium oxide had comparable sorption efficiencies of about 45% but different photodegradation efficiencies of 0.52% and 15.42%, respectively.

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Synthesis and characteristics of biocidal oil composites enhanced with thymol and salicylic acid

Staroń,

Pucelik,

Barzowska

et al. 2024

Clean Techn Environ Policy

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The research aimed to develop composite materials based on waste cooking oil containing thymol or salicylic acid and assess their antimicrobial properties against selected Gram-positive and Gram-negative bacteria strains. The study also investigated whether the use of a binder, such as catalyzed waste cooking oil, and the performing of annealing process would affect the antimicrobial effectiveness of the natural additive. The composite materials were characterized using FT–IR spectroscopy, thermal analysis, and scanning electron microscopy. Mechanical properties were also evaluated, along with abrasion resistance and soakability. Thymol-modified materials showed higher activity against E. coli strain; while, salicylic acid-modified materials were more effective against P. aeruginosa. The antibacterial activity against Gram-positive bacteria was generally lower than against Gram-negative bacteria. Flow cytometry and confocal microscopy were used to visualize and quantify bacterial death induced by the composite materials. The materials showed interactions with bacterial cells, leading to cell damage and inhibition of bacterial division. The most effective biocidal composite against the suspension of P. aeruginosa bacteria was 22 T (99% inactivation), containing 4% thymol. Against E. coli, composite 41 T containing 1% thymol caused a significant decrease in the viability of these bacteria by up to 45%. Similarly, on S. aureus, composites with the addition of thymol also exhibited strong effects, reaching up to 70% reduction, as observed in 43 T with 7% thymol. Composites containing salicylic acid also demonstrated biocidal properties, resulting in a 52% reduction in E. coli (33SA containing 7% salicylic acid); 99% reduction in P. aeruginosa (15SA containing 1% salicylic acid); 20% reduction in S. aureus (41SA containing 1% salicylic acid); and approximately 25% reduction in S. epidermidis (43SA with 7% salicylic acid). Furthermore, the composite materials demonstrated low cytotoxicity against human keratinocytes, indicating their potential safe use when contacted with human skin. Graphical Abstract

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Application of pyrolysis residue from waste materials in black coal flotation

Cited by 7 publications

References 1 publication

Assessment of the Environmental Impact of Solid Oil Materials Based on Pyrolysis Oil

Assessment of the Environmental Impact of Solid Oil Materials Based on Pyrolysis Oil

Sorption and Photocatalysis of Dyes on an Oil-Based Composite Enriched with Nanometric ZnO and TiO2

Synthesis and characteristics of biocidal oil composites enhanced with thymol and salicylic acid

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