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Journal of Material Cycles and Waste Management

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27.06.2023 | ORIGINAL ARTICLE

Catalytic cracking of low-density polyethylene dissolved in various solvents: product distribution and coking behavior

verfasst von: Dharmesh J. Machhi, Bharat Modhera, Parimal A. Parikh

Erschienen in: Journal of Material Cycles and Waste Management | Ausgabe 5/2023

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Abstract

Production of polymers is increasing though their disposal in an environmentally friendly manner still illudes researchers. Chemical recycling attracts attention as products obtained from mechanical recycling suffer from inferior properties. Feeding of polymers to the reactors for conversions is difficult. To address this aspect and envisaging synergistic effects during catalytic cracking, we attempted dissolving low-density polyethylene in solvents cracking of which too is desirable (tetralin, decalin, and methylcyclohexane) to obtain value-added hydrocarbons. Catalysts used include parent and desilicated ZSM-5 and zeolite Beta, zeolite Y, silica-aluminas, and slurry hydrocracking catalyst. Liquid product yields increased when LDPE was present with the solvent. Further, additional compounds over only-solvent cracking were obtained. Alkylation of aromatics was proposed to arise from alkyl radicals resulting from LDPE cracking. Catalysts were characterized by various techniques. Coke deposited for different systems was quantified and analyzed and was found to be oligomers of olefins and aromatics.

Vorheriger Artikel Conversion of thermocol waste into fuel oil over nickel oxide: kinetics and fuel properties of the oil

Nächster Artikel Encouraging sustainable clothing disposal: consumers’ social recycling motivations in Turkey

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Titel: Catalytic cracking of low-density polyethylene dissolved in various solvents: product distribution and coking behavior
verfasst von: Dharmesh J. Machhi
Bharat Modhera
Parimal A. Parikh
Publikationsdatum: 27.06.2023
Verlag: Springer Japan
Erschienen in: Journal of Material Cycles and Waste Management / Ausgabe 5/2023
Print ISSN: 1438-4957
Elektronische ISSN: 1611-8227
DOI: https://doi.org/10.1007/s10163-023-01734-4

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