Production of jet fuel from cracked fractions of waste polypropylene and polyethylene

Tomasek, Szabina; Varga, Zoltán; Hancsók, Jenő

doi:10.1016/j.fuproc.2019.106197

Cited by 28 publications

(11 citation statements)

References 39 publications

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“…The produced hydrocarbon fuels, on the other hand, were free-owing in nature and could be utilized directly for heating applications. Table 4 illustrates various properties such as density, kinematic viscosity, pour point, ash point, (40). Based on these fuel properties, it can be observed that liquid hydrocarbon fuels derived either from virgin plastic or plastic waste, have an excellent potential to use as an alternative fuel.…”

Section: Gc-ms Analysismentioning

confidence: 99%

“…Jet fuel comprises of C8 to C16 hydrocarbons including aliphatic alkanes (para n) and cycloalkanes (naphthenes) with some aromatics compounds (Zhang et al 2017(Zhang et al , 2019. Recently some researchers showed that plastic wastes may be good source of jet fuel range hydrocarbons (Zhang et al 2017 Tomasek et al 2020). However, this study investigates effect of low cost catalyst i.e.…”

Section: Introductionmentioning

confidence: 99%

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Production And Characterization of Transportation Fuels From Domestic Plastic Wastes And Mixed Virgin Plastics By Low- Cost Catalytic Pyrolysis

Ghodke¹,

Moorthy²,

Sharma³

et al. 2021

Preprint

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With increasing population, modernization, and industrialization, plastics usage is growing daily and results in vast plastic waste. Recycling these plastic wastes to hydrocarbon fuels is challenging due to their different chemical structures, long-chain polymeric compositions, and decomposition/thermal behavior. In the present manuscript, the pyrolysis of domestic plastic waste was carried out at 473 - 973 K in a fixed bed tubular reactor and compared with individual virgin plastics, i.e. HDPE (High-density polyethylene), LDPE (Low-density polyethylene), PP (Polypropylene), and their mixture of (virgin mixed plastic). The experiments were also performed using a low-cost catalyst (mineral clay) to maximize hydrocarbon fuels. At identified optimum operating conditions, the domestic plastic waste and mixed virgin plastics yielded 73.1 wt% and 81.6 wt% liquid hydrocarbons along with 16.9 wt% and 25.5 wt.% pyrolysis gas, respectively. The composition of liquid fuels was analyzed using FTIR and GC-MS in detail, revealing a wide variety of hydrocarbons disbursement in the range of C8–C20. In addition, fuel properties of liquid fuels such as viscosity, density, fire and flash point, pour point, and calorific value was analyzed according to ASTM methods and found to be satisfactory. Based on chemical composition and fuel properties, liquid fuels derived from domestic plastic wastes showed 78.05%, and 61.86 % similarity with diesel, and jet fuels respectively. Non-condensable gases, which mainly consist of ethane and propene with minor amounts of hydrogen and methane, have been identified to be ideal for spark-ignition engine (SI) engines. This study offers a unique technique for converting waste plastics into transportation jet fuel using an affordable catalyst.

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Section: Gc-ms Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Production And Characterization of Transportation Fuels From Domestic Plastic Wastes And Mixed Virgin Plastics By Low- Cost Catalytic Pyrolysis

Ghodke¹,

Moorthy²,

Sharma³

et al. 2021

Preprint

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show abstract

“…Among these technologies, the hydroprocessing of esters and fatty acids (HEFA) from non-edible and edible oils makes the oil-to-jet technology prevalent in the production of renewable hydrocarbons in the C 8 -C 16 range, characteristic of the Jet A1 fuel. However, this technology has a relatively high cost level; thus, further studies in this area are justified [ 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Renewable Hydrocarbon Production from Waste Cottonseed Oil Pyrolysis and Catalytic Upgrading of Vapors with Mo-Co and Mo-Ni Catalysts Supported on γ-Al2O3

et al. 2021

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In this work, the production of renewable hydrocarbons was explored by the means of waste cottonseed oil (WCSO) micropyrolysis at 500 °C. Catalytic upgrading of the pyrolysis vapors was studied using α-Al2O3, γ-Al2O3, Mo-Co/γ-Al2O3, and Mo-Ni/γ-Al2O3 catalysts. The oxygen removal efficiency was much lower in non-catalytic pyrolysis (18.0%), whilst γ-Al2O3 yielded a very high oxygen removal efficiency (91.8%), similar to that obtained with Mo-Co/γ-Al2O3 (92.8%) and higher than that attained with Mo-Ni/γ-Al2O3 (82.0%). Higher conversion yields into total renewable hydrocarbons were obtained with Mo-Co/γ-Al2O3 (61.9 wt.%) in comparison to Mo-Ni/γ-Al2O3 (46.6%). GC/MS analyses showed a relative chemical composition of 31.3, 86.4, and 92.6% of total renewable hydrocarbons and 58.7, 7.2, and 4.2% of oxygenated compounds for non-catalytic bio-oil (BOWCSO), BOMoNi and BOMoCo, respectively. The renewable hydrocarbons that were derived from BOMoNi and BOMoCo were mainly composed by olefins (35.3 and 33.4%), aromatics (31.4 and 28.9%), and paraffins (13.8 and 25.7%). The results revealed the catalysts’ effectiveness in FFA decarbonylation and decarboxylation, as evidenced by significant changes in the van Krevelen space, with the lowest O/C ratio values for BOMoCo and BOMoNi (O/C = 0–0.10) in relation to the BOWCSO (O/C = 0.10–0.20), and by a decrease in the presence of oxygenated compounds in the catalytic bio-oils.

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“…Tomasek et al [9] also investigated the high-quality liquid fuel production from waste PE. Mangesh et al [10] explored a pathway to produce diesel engine fuel from different types of waste plastic pyrolysis, e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Tomasek et al. [ 9 ] also investigated the high-quality liquid fuel production from waste PE. Mangesh et al.…”

Section: Introductionmentioning

confidence: 99%

Application of a neural fuzzy model combined with simulated annealing algorithm to predict optimal conditions for polyethylene waste non-isothermal pyrolysis

Pan

Duque

Martins

et al. 2020

Heliyon

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In the present study, the waste polyethylene (PE) pyrolysis under different non-isothermal conditions was investigated to estimate the optimal conversions and pyrolysis rates. The pyrolysis study was carried out using Thermogravimetry (TG) of the virgin and the waste PE under different heating rates of 5, 10, 15 and 20 C/min. The TG experiments indicated that the virgin and the waste PE pyrolysis processes mainly underwent in the temperature range of 390-510 C. Subsequently, the adaptive neural fuzzy model was adopted to predict the conversions and the pyrolysis rates of the virgin and the waste PE. The optimal operating conditions in different temperature ranges were optimized by the simulated annealing algorithm (SA). Moreover, the R-squared values of the virgin PE conversions (~1) and pyrolysis rates (> 0.999), and the waste PE conversions (~1) and pyrolysis rates (> 0.999) revealed the high accuracy of the adaptive neural fuzzy model predicted results.

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Production of jet fuel from cracked fractions of waste polypropylene and polyethylene

Cited by 28 publications

References 39 publications

Production And Characterization of Transportation Fuels From Domestic Plastic Wastes And Mixed Virgin Plastics By Low- Cost Catalytic Pyrolysis

Production And Characterization of Transportation Fuels From Domestic Plastic Wastes And Mixed Virgin Plastics By Low- Cost Catalytic Pyrolysis

Renewable Hydrocarbon Production from Waste Cottonseed Oil Pyrolysis and Catalytic Upgrading of Vapors with Mo-Co and Mo-Ni Catalysts Supported on γ-Al2O3

Application of a neural fuzzy model combined with simulated annealing algorithm to predict optimal conditions for polyethylene waste non-isothermal pyrolysis

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