Polyethylene waste recycling into fuel products by catalytic cracking on vision zeolite catalyst

This paper studies the recycling of low-density polyethylene (LDPE) waste into liquid and gaseous fuels. The plastic residues are shredded and solubilized in two petroleum fractions with different chemical character (aromatic and paraffinic) followed by successive conversion through thermal cracking...

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Bibliographic Details
Published inReaction kinetics, mechanisms and catalysis Vol. 136; no. 4; pp. 2295 - 2308
Main Author Dragomir, Raluca-Elena
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.08.2023
Subjects
Catalysis
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Physical Chemistry
Plastic
Fuels
Thermal cracking
LDPE
Catalytic cracking
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Summary:This paper studies the recycling of low-density polyethylene (LDPE) waste into liquid and gaseous fuels. The plastic residues are shredded and solubilized in two petroleum fractions with different chemical character (aromatic and paraffinic) followed by successive conversion through thermal cracking (TC) and catalytic cracking (CC). TC was carried out at a temperature of 470 °C and a pressure of 15 bar for each solvent as well as for solvent mixtures with 15 wt%, 30 wt%, 45 wt% and 60 wt% of LDPE, and CC was carried out at a temperature of 500 °C both for solvents and for mixtures of solvents and LDPE in the same proportions used for CC, in the presence of the VISION catalyst. The processing of LDPE waste by TC and then the distillate obtained by CC leads to high overall yields in gas and gasoline. Graphical abstract
ISSN:1878-5190
1878-5204
DOI:10.1007/s11144-023-02462-4