Pyrolysis of Polyolefins into Chemicals Using Low-Cost Natural Zeolites

An experimental study of pyrolysis from polyethylene (PE) and polypropylene (PP) has been done by catalytic method and utilization of low-cost natural zeolite in a semi-batch reactor. A low-cost natural zeolite made from acid-treated zeolite with 1 M HCl solution was denoted as HZ. The prepared HZ c...

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Bibliographic Details
Published in:Waste and biomass valorization 2023-05, Vol.14 (5), p.1705-1719
Main Authors: Irawan, Anton, Kurniawan, Teguh, Nurkholifah, N., Melina, M., Nandiyanto, Asep Bayu Dani, Firdaus, Mochamad Adha, Alwan, Hafid, Bindar, Yazid
Format: Article
Language:English
Subjects:
Batch reactors
Catalysts
Chemical composition
Engineering
Environment
Environmental Engineering/Biotechnology
Gas chromatography
Industrial Pollution Prevention
Low cost
Low temperature
Mass spectrometry
Mass spectroscopy
Oil
Original Paper
Paraffin
Paraffins
Polyethylenes
Polyolefins
Polypropylene
Pyrolysis
Renewable and Green Energy
Utilization
Waste Management/Waste Technology
Waxes
Zeolites
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Summary:An experimental study of pyrolysis from polyethylene (PE) and polypropylene (PP) has been done by catalytic method and utilization of low-cost natural zeolite in a semi-batch reactor. A low-cost natural zeolite made from acid-treated zeolite with 1 M HCl solution was denoted as HZ. The prepared HZ catalyst was then carried out under pyrolysis reaction at 350, 400, 450 °C for 60 min. The chemical products composition from this reaction was analyzed using Gas Chromatography-Mass Spectrometry (GC–MS). According to the analysis result, a low-temperature reaction of pyrolysis could produce wax in all variant types of feed. Utilization of HZ catalyst could reduce formation wax while also increasing the yield of oil products after the reaction. Catalytic pyrolysis using HZ for PE and PP plastic feed yields oil products up to 67% and 70%, respectively. The composition of oil products mainly consisted of paraffin, olefin, and alcohol compounds. The temperature optimum for the catalytic reaction could produce the highest paraffin and olefin products at 400 °C. Additionally, utilization of low-cost natural zeolite could improve pyrolysis reaction's performance from PP to produce yield olefin products from 39 to 62%. Graphical Abstract
ISSN:1877-2641
1877-265X
DOI:10.1007/s12649-022-01942-3