Simulation-assisted design of a catalytic hydrogenation reactor for plastic pyrolysis fuels

Gala, Alberto; Catalán-Martínez, David; Guerrero, Marta; Serra, José M.

doi:10.1016/j.fuel.2020.119400

Cited by 11 publications

(7 citation statements)

References 49 publications

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“…Based on their versatility, the refinery units with higher prospects for managing these feeds (raw plastics, waste plastic pyrolysis oil, and EOL tire pyrolysis oil) are the following ones: catalytic cracking (FCC), hydroprocessing, steam cracking, and coker units. ,, Moreover, taking into account their capacity and technological development, the refinery units that forge ahead in the implementation of the waste refinery are the FCC unit (in the short term, using already depreciated units) and the hydroprocessing unit (in the long term, given its higher complexity and lower implementation). Next, in sections and , the main features of these units have been summarized, together with the main research results obtained in the catalytic cracking and hydroprocessing of these wastes.…”

Section: The Concept Of Waste Refinerymentioning

confidence: 99%

Waste Refinery: The Valorization of Waste Plastics and End-of-Life Tires in Refinery Units. A Review

et al. 2021

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This review collects a wide range of initiatives and results that expose the potential of the refineries to be converted into waste refineries. Thus, they will use their current units for the valorization of consumer society wastes (waste plastics and end-of-life tires in particular) that are manufactured with petroleum derivatives. The capacity, technological development, and versatility of fluid catalytic cracking (FCC) and hydroprocessing units make them appropriate for achieving this goal. Polyolefinic plastics (polyethylene and polypropylene), the waxes obtained in their fast pyrolysis, and the tire pyrolysis oils can be cofed together with the current streams of the industrial units. Conventional refineries have the opportunity of operating as waste refineries cofeeding these alternative feeds and tailoring the properties of the fuels and raw materials produced to be adapted to commercial requirements within the oil economy frame. This strategy will contribute in a centralized and rational way to the recycling of the consumer society wastes on a large scale. Furthermore, the use of already existing and, especially, depreciated units for the production of fuels and raw materials (such as light olefins and aromatics) promotes the economy of the recycling process.

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Section: The Concept Of Waste Refinerymentioning

confidence: 99%

Waste Refinery: The Valorization of Waste Plastics and End-of-Life Tires in Refinery Units. A Review

et al. 2021

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“…However, it is estimated that COVID‐19 has caused a serious increase in plastic production and is around 698 million tons in only 2020 3 . Plastics that have completed their useful life are disposed of as waste to the environment 4 . Today, waste plastics are disposed of by incineration, inefficient landfill and pyrolysis/liquefaction methods 5–7 .…”

Section: Introductionmentioning

confidence: 99%

“…3 Plastics that have completed their useful life are disposed of as waste to the environment. 4 Today, waste plastics are disposed of by incineration, inefficient landfill and pyrolysis/liquefaction methods. [5][6][7] While incineration and inefficient landfill methods used in the recycling of waste plastics create many new problems (gas emissions, soil and water pollution, etc.…”

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confidence: 99%

Characterization of products obtained of waste polyethylene terephthalate by pyrolysis

Olam

Karaca

2022

Env Prog and Sustain Energy

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In this study, waste polyethylene terephthalate (wPET) was converted to liquid fuel by the pyrolysis method. It was also investigated both effects of microwave pre‐treatment and catalyst (sodium borohydride) on total conversion and oil + gas yield. The reaction temperature of 375–425°C and the reaction time of 30 min are sufficient for the pyrolysis of waste plastic samples in a batch reactor. In the pyrolysis of wPETs, the highest oil + gas yield of 45% was obtained under the conditions of reaction temperature of 425°C and reaction time of 30 min. The highest total conversion was 62% of microwave pre‐treated wPETs under catalytic conditions. It can be argued that microwave pre‐treatment and NaBH4 influence the oil + gas yield in pyrolysis experiments. According to the gas chromatography–mass spectrometry (GC–MS) analysis results of the oil products, they consist of aromatic, mono and multi‐ring aromatic compounds and polyaromatic compounds. Higher heating values of the solid products obtained in pyrolysis are approximately 4000–6000 cal/g. According to X‐ray diffraction analysis (XRD) of the solid products, they consist largely of crystalline terephthalic acid (C8H6O4).

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“…[13][14][15][16][17][18][19][20][21][22] In a few cases, catalytic pyrolysis has been investigated as a xed bed reactor setup. 23 No examples of CFD analysis for catalytic pyrolysis with ZSM-5 catalyst on a uidized bed were found in literature, to the best of our knowledge. For this study, a uidized solid phase modelling strategy was used, instead of a discrete element method, to save computational resources.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis on a catalytic pyrolysis reactor design for plastic waste upcycling using CFD modelling

Flor-Barriga

Rodríguez-Zúñiga

2022

RSC Adv.

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Simulation-assisted design of a catalytic hydrogenation reactor for plastic pyrolysis fuels

Cited by 11 publications

References 49 publications

Waste Refinery: The Valorization of Waste Plastics and End-of-Life Tires in Refinery Units. A Review

Waste Refinery: The Valorization of Waste Plastics and End-of-Life Tires in Refinery Units. A Review

Characterization of products obtained of waste polyethylene terephthalate by pyrolysis

Numerical analysis on a catalytic pyrolysis reactor design for plastic waste upcycling using CFD modelling

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