Characteristics of Pyrolysis Products from Waste Tyres and Spent Foundry Sand Co-Pyrolysis

Perondi, Daniele; Scopel, Bianca Santinon; Silva, Jayna Pessutto; Botomé, Michele Leoratto; Dettmer, Aline; Godinho, Marcelo; Vilela, Antônio Cezar Faria

doi:10.1177/147776061603200403

Cited by 14 publications

(6 citation statements)

References 58 publications

(67 reference statements)

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“…FTIR spectroscopy was used due to its versatility in determining compositions of the compounds. 29,30 In this study, a Nicolet Avatar™ FTIR Spectrometer was used to determine the polymer properties. Figures 5 to 7 show the FTIR spectra of oil obtained from HDPE, LDPE, and PP at 650°C with the zeolite catalyst, respectively.…”

Section: Resultsmentioning

confidence: 99%

Catalytic pyrolysis of recycled HDPE, LDPE, and PP

Shoaib

Subeshan

Khan

et al. 2021

Progress in Rubber, Plastics and Recycling Technology

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Plastic waste has been growing every year, and as a result, environmental concern has been a topic of much attention. Many properties of plastics, such as their lightweight, durability, and versatility, are significant factors in achieving sustainable development. The exponential increase of plastic production produces every year approximately 100 million tons of waste plastic, which could be converted into hydrocarbon fuels by employing a process appropriately called pyrolysis. Pyrolysis, which is thermal or catalytical, can be performed under different experimental conditions that affect the type and amount of product obtained. With the pyrolysis process, products can be obtained with high added value, such as fuel oils and feedstock for new products. In this study, magnesium silicate (MgO3Si) and Cloisite 30B were used as catalysts for the decomposition of different plastics, and the results were compared with the zeolite catalyst. In the case of high-density polyethylene (HDPE), the oil yield with a zeolite catalyst was found to be 71%, whereas with MgO3Si and Cloisite 30B, this was 68% and 67%, respectively. Zeolite produced better results in the decomposition of polypropylene (PP) compared to MgO3Si and Cloisite 30B. Fourier-transform infrared spectroscopy (FTIR), and gas chromatography (GC) were conducted in this work. The spectra results for all samples were consistent and in the fuel range.

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Section: Resultsmentioning

confidence: 99%

Catalytic pyrolysis of recycled HDPE, LDPE, and PP

Shoaib

Subeshan

Khan

et al. 2021

Progress in Rubber, Plastics and Recycling Technology

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show abstract

“…These chemicals can be further processed into valuable products and hence improve waste recovery efficiency from materials. Food waste (Joe et al, 2017), plastic (Sorum et al, 2001, Olazar et al, 2009, and Sharuddin et al, 2016, and waste tyres (Islam et al, 2013, Perondi et al, 2016, and Lopez et al, 2017 are among some of the most widely studied materials using pyrolysis experiments. There are, however, limited studies that examine the potential of pyrolysis for recovering leather shoe waste.…”

Section: Introductionmentioning

confidence: 99%

Characterization and pyrolysis of post-consumer leather shoe waste for the recovery of valuable chemicals

2021

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Majority of post-consumer leather footwear currently ends up in landfill sites with adverse environmental impacts. Current waste recovery options have proven largely unsuccessful in minimizing this waste stream. This study investigates whether leather from post-consumer footwear can be pyrolyzed using gram-scale (fixed-bed) and microgram-scale (TGA) pyrolysis reactors. The investigation was conducted using final pyrolysis process temperatures between 450 and 650 °C and solid residence times of 5 to 15 minutes. The purpose of the experiments was to assess the waste recovery potential of leather pyrolysis products for valuable chemicals. The pyrolysis product fractions (solid, liquid, and gas) distribution were investigated, optimal pyrolysis conditions presented, and the product fractions characterized for their elemental and chemical composition using ultimate and GC-MS analysis. The distribution of the product fractions proved leather footwear pyrolysis was viable under the given conditions. The completion of leather footwear pyrolysis was evident at 650°C since the solid yield reached a constant value of approximately 25 wt.%. The liquid fraction was maximized within the temperature range of 550-650°C (Max= 54 wt.%), suggesting optimal pyrolysis conditions within this range. The higher heating values (HHVs) of the pyrolysis leather oil (33.6 MJ/kg) and char (25.6 MJ/kg) suggested their potential application for energy or fuel. The liquid fraction comprised predominantly of nitrogen derivatives and potential applications areas include use in the production of fertilizers, chemical feedstocks, or the pharmaceutical industry. This study proved that leather from post-consumer footwear can be pyrolyzed and provided valuable insight into its characterization and potential applications areas.

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“…Recently, researchers have shown an increased interest to pyrolysis method of waste tires, since the process can be optimized to produce high-quality fuels as products and also one of the most reasonable alternatives in terms of environmental protection. Pyrolysis of tire waste produced oil with main components was naphthalene and anthracene, char, and also fuel gas 6) . Pyrolysis of a solid motorcycle tire waste was determined to produce liquid fuels and chemical.…”

Section: Introductionmentioning

confidence: 99%

Effect of Residence Time and Chemical Activation on Pyrolysis Product from Tires Waste

Putra

Amaliyah

Syam

et al. 2019

J. Jpn. Inst. Energy

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In this study, active carbon produced from tires waste using pyrolysis was investigated. As tires were made predominantly from the petroleum product rubber, they have a high heating value, as well as high volatile content and medium sulfur content. Those properties make them excellent candidates for pyrolysis, which can be used to recover energy and by-products. Pyrolysis has been conducted until the temperature of 750 °C and holds in residence time variation of 5, 60, and 120 min after oil and gas completely produced. Char was produced via pyrolysis then activated by chemical activation using NaCl solution for 24 hours followed by drying at the temperature of 100 °C for 1 hour. Activated carbon as pyrolysis product then analyzed using Scanning Electron Microscope, BET analysis and N2 adsorption analysis. It was observed that the pore size of the resulting carbon generally increases as increasing of residence time. In addition, increasing residence time also resulted in enhanced higher porosity development after chemical activation using NaCl as high as 2.19 nm with BET surface area of 28.19 m 2 /g. The formation of pores with an average diameter of pore 8 µm was observed on the carbon surface.

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Characteristics of Pyrolysis Products from Waste Tyres and Spent Foundry Sand Co-Pyrolysis

Cited by 14 publications

References 58 publications

Catalytic pyrolysis of recycled HDPE, LDPE, and PP

Catalytic pyrolysis of recycled HDPE, LDPE, and PP

Characterization and pyrolysis of post-consumer leather shoe waste for the recovery of valuable chemicals

Effect of Residence Time and Chemical Activation on Pyrolysis Product from Tires Waste

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