Catalytic Copyrolysis of Cork Oak and Waste Plastic Films over HBeta

Park, Young-Kwon; Lee, Boram; Watanabe, Atsushi; Lee, Hyung Won; Lee, Ji Young; Kim, Seungdo; Han, Tae Uk; Kim, Young‐Min

doi:10.3390/catal8080318

Cited by 6 publications

(4 citation statements)

References 38 publications

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“…Nitrogen-containing heterocyclic compound (nicotine) is the main pyrolyzate of TL [9,28]. Limonene was produced by the decomposition of pectin, confirming previous reports [26,34]. Glycerol, a humectant in EHT, was also found in the pyrogram of TLs [9].…”

Section: Py-gc/ms Analysissupporting

confidence: 85%

Chemical Feedstock Recovery via the Pyrolysis of Electronically Heated Tobacco Wastes

et al. 2021

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The pyrolysis of waste electronically heated tobacco (EHT), consisting of tobacco leaves (TL), a poly-lactic acid (PLA) filter, and a cellulose acetate (CA) filter, was investigated using thermogravimetric (TG) and pyrolyzer–gas chromatography/mass spectrometry (Py-GC/MS) analysis. The pyrolytic properties of waste EHT obtained after smoking were comparable to those of fresh EHT. Although the maximum decomposition temperatures (TmaxS) of waste TL and CA were similar to those of fresh EHT components, the Tmax of waste PLA was slightly higher than that of fresh PLA due to smoldering. The Tmaxs of PLA and CA were lowered when they were co-pyrolyzed with TL due to interactions between pyrolysis intermediates. The apparent activation energies for the non-isothermal pyrolysis of waste EHT components were higher than those of fresh EHT components. Py-GC/MS analysis results indicated that considerable amounts of chemical feedstocks, such as nicotine and limonene from TL, caprolactone and lactide from PLA, and acetic acid and triacetin from CA, can be recovered by simple pyrolysis of EHT. Co-pyrolysis of TL, PLA, and CA revealed that the experimental amount of lactide was much larger than the calculated value, suggesting its synergistic formation.

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Section: Py-gc/ms Analysissupporting

confidence: 85%

Chemical Feedstock Recovery via the Pyrolysis of Electronically Heated Tobacco Wastes

et al. 2021

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“…When the blending ratio of lignite, wheat straw, and plastic waste is 5:4:1, there exists a synergism effect for oil yield, and the oil yield and the gas yield are all the highest at this ratio. Park et al [87] reported the thermal decomposition temperature of cork oak and waste plastic films shifted to a lower temperature than their individual catalytic fast pyrolysis reactions due to the effective interaction between the pyrolysis intermediates, and the use of HBeta having strong acidity and appropriate pore size. Sergeyev et al [88] co-cracked PET with AR, observed an increase in the formation of light fraction.…”

Section: Co-pyrolysismentioning

confidence: 99%

Research Progress in Fuel Oil Production by Catalytic Pyrolysis Technologies of Waste Plastics

An,

Kou,

et al. 2024

Catalysts

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Improper disposal of waste plastic has caused serious ecological and environmental pollution problems. Transforming plastics into high value-added chemicals can not only achieve efficient recycling of waste plastics, but is also an effective way to control white pollution. The catalyst selectively breaks the C–C bond of polyolefin plastic under heat treatment and converts it into liquid fuel, thus realizing sustainable recycling of plastics and has a good development prospect. This review provides a detailed overview of the current development of catalytic pyrolysis, catalytic hydrolysis, solvent decomposition, and supercritical hydrothermal liquefaction for cracking plastics to make fuel oil. The reaction mechanism, influencing factors, and promoting effects of catalysts in various degradation technologies are analyzed and summarized, and the latest proposed tandem reaction for degrading plastics is briefly introduced. Finally, some optimization paths of waste plastic pyrolysis to fuel oil technology are proposed: synergies between mixed raw materials, in-depth exploration of catalysts, design and manufacture of reactors that match the pyrolysis technology. All these are important research directions for promoting the industrialization of plastic pyrolysis to fuel oil.

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“…Although they used the different HY having different acidity to that used in this study, they also found that HY produced the smaller amount of aromatics and larger amount of coke during the CFP of MP than HZSM-5. When the pore size of the catalyst was larger than the size required for the production of aromatics, the amount of coke could be increased because of the additional oligomerization of reaction intermediates inside the catalyst [26]. (…”

Section: Pyrolyzer-gas Chromatography/mass Spectrometry (Py-gc/ms) An...mentioning

confidence: 99%

Increased Aromatics Formation by the Use of High-Density Polyethylene on the Catalytic Pyrolysis of Mandarin Peel over HY and HZSM-5

et al. 2018

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High-density polyethylene (HDPE) was co-fed into the catalytic pyrolysis (CP) of mandarin peel (MP) over different microporous catalysts, HY and HZSM-5, with different pore and acid properties. Although the non-catalytic decomposition temperature of MP was not changed during catalytic thermogravimetric analysis over both catalysts, that of HDPE was reduced from 465 °C to 379 °C over HY and to 393 °C over HZSM-5 because of their catalytic effects. When HDPE was co-pyrolyzed with MP over the catalysts, the catalytic decomposition temperatures of HDPE were increased to 402 °C over HY and 408 °C over HZSM-5. The pyrolyzer-gas chromatography/mass spectrometry results showed that the main pyrolyzates of MP and HDPE, which comprised a large amount of oxygenates and aliphatic hydrocarbons with a wide carbon range, were converted efficiently to aromatics using HY and HZSM-5. Although HY can provide easier diffusion of the reactants to the catalyst pore and a larger amount of acid sites than HZSM-5, the CP of MP, HDPE, and their mixture over HZSM-5 revealed higher efficiency on aromatics formation than those over HY due to the strong acidity and more appropriate shape selectivity of HZSM-5. The production of aromatics from the catalytic co-pyrolysis of MP and HDPE was larger than the theoretical amounts, suggesting the synergistic effect of HDPE co-feeding for the increased formation of aromatics during the CP of MP.

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Catalytic Copyrolysis of Cork Oak and Waste Plastic Films over HBeta

Cited by 6 publications

References 38 publications

Chemical Feedstock Recovery via the Pyrolysis of Electronically Heated Tobacco Wastes

Chemical Feedstock Recovery via the Pyrolysis of Electronically Heated Tobacco Wastes

Research Progress in Fuel Oil Production by Catalytic Pyrolysis Technologies of Waste Plastics

Increased Aromatics Formation by the Use of High-Density Polyethylene on the Catalytic Pyrolysis of Mandarin Peel over HY and HZSM-5

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