Catalytic Fast Pyrolysis of Poly (Ethylene Terephthalate) (PET) with Zeolite and Nickel Chloride

Jia, Hang; Ben, Haoxi; Luo, Ying; Wang, Rui

doi:10.3390/polym12030705

Cited by 61 publications

(40 citation statements)

References 38 publications

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“…Peaks between 1680-1700 cm -1 correspond to C = O bonds; represents ketones, aldehydes, or with the existence of the peaks between 1250-1310 cm -1 referring to the ester bond (C-O) stretch reveals the existence of carboxylic acids. Peaks between 700-1000 cm -1 represent C = C bonds and are indicative of alkenes and aromatics (Lee 1997;Waziri et al 2019;Jia et al 2020). As a result, no signi cant differences were observed in the FT-IR spectra of liquid products obtained as a result of pyrolysis of LDPE and C/LDPE wastes, both of which were largely made up of alkanes.…”

Section: Analysis Of the Liquid Productmentioning

confidence: 99%

Utilization of liquid product through pyrolysis of LDPE and C/LDPE as commercial wax

Akgün

Yapıcı

Günkaya

et al. 2021

Environ Sci Pollut Res

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BackgroundIn this study, pyrolysis of low-density polyethylene (LDPE) and LDPE with aluminum (C/LDPE) wastes was carried out with different heating rates (5-10-20°C/min) at different temperatures (400-600-800°C). The effect of temperature and heating rate on liquid product yield was investigated. Product yields of LDPE and C/LDPE wastes were compared, and optimum liquid products were analyzed to utilize as commercial waxes for future use. MethodsTo determine the parameters of pyrolysis wastes was investigated with proximate, elemental analysis, and TGA. The as-produced liquid from pyrolysis of wastes was characterized by different characteristic tools, such as elemental analyses, GC-MS analyzes, 1 H-NMR tests, FT-IR spectra, the density, melting point, and carbon residue to compare commercial waxes. The characterization process was continued for the parameters with the optimum liquid products. ResultsAs a result of pyrolysis, the highest liquid product yield was achieved at 800°C with 5°C/min heating rate (85.87 %), and at 600°C with 5°C/min heating rate (71.3 %) for LDPE and C/LDPE, respectively. The results indicated that the derived liquid products are similar to commercial heavy wax.

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Section: Analysis Of the Liquid Productmentioning

confidence: 99%

Utilization of liquid product through pyrolysis of LDPE and C/LDPE as commercial wax

Akgün

Yapıcı

Günkaya

et al. 2021

Environ Sci Pollut Res

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“…Furthermore, the ZSM-S is used as a catalyst. The waxy product shows that the carbonyl and aliphatic groups, which are C-O bonds, will be declined up to 42% and 20%, respectively [ 84 ].…”

Section: The Chemical Recycling Of Petmentioning

confidence: 99%

Strategic Possibility Routes of Recycled PET

2021

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The polyethylene terephthalate (PET) application has many challenges and potential due to its sustainability. The conventional PET degradation was developed for several technologies to get higher yield products of ethylene glycol, bis(2-hydroxyethyl terephthalate) and terephthalic acid. The chemical recycling of PET is reviewed, such as pyrolysis, hydrolysis, methanolysis, glycolysis, ionic-liquid, phase-transfer catalysis and combination of glycolysis–hydrolysis, glycolysis–methanolysis and methanolysis–hydrolysis. Furthermore, the reaction kinetics and reaction conditions were investigated both theoretically and experimentally. The recycling of PET is to solve environmental problems and find another source of raw material for petrochemical products and energy.

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“…PET pyrolysis products consist of various aromatic and oxygenated compounds such as vinyl benzoate, benzoic acid (BA), and acetaldehyde. PET pyrolysis using ZSM-5 zeolite and NiCl 2 catalysts was found to be effective for producing more liquid products [ 37 ]. The pyrolysis of waste PET takes place by cleavage of the ester linkage, leading to the formation of vinyl ester and carboxyl compounds, mainly BA.…”

Section: Production Of Chemicals From Plastic Wastesmentioning

confidence: 99%

Potential Chemicals from Plastic Wastes

et al. 2021

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Plastic is referred to as a “material of every application”. From the packaging and automotive industries to the medical apparatus and computer electronics sectors, plastic materials are fulfilling demands efficiently. These plastics usually end up in landfills and incinerators, creating plastic waste pollution. According to the Environmental Protection Agency (EPA), in 2015, 9.1% of the plastic materials generated in the U.S. municipal solid waste stream was recycled, 15.5% was combusted for energy, and 75.4% was sent to landfills. If we can produce high-value chemicals from plastic wastes, a range of various product portfolios can be created. This will help to transform chemical industries, especially the petrochemical and plastic sectors. In turn, we can manage plastic waste pollution, reduce the consumption of virgin petroleum, and protect human health and the environment. This review provides a description of chemicals that can be produced from different plastic wastes and the research challenges involved in plastic waste to chemical production. This review also provides a brief overview of the state-of-the-art processes to help future system designers in the plastic waste to chemicals area.

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Catalytic Fast Pyrolysis of Poly (Ethylene Terephthalate) (PET) with Zeolite and Nickel Chloride

Cited by 61 publications

References 38 publications

Utilization of liquid product through pyrolysis of LDPE and C/LDPE as commercial wax

Utilization of liquid product through pyrolysis of LDPE and C/LDPE as commercial wax

Strategic Possibility Routes of Recycled PET

Potential Chemicals from Plastic Wastes

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