LAPSE:2021.0729
Published Article
LAPSE:2021.0729
Lumped Kinetic Modeling of Polypropylene and Polyethylene Co-Pyrolysis in Tubular Reactors
Andreas E. Lechleitner, Teresa Schubert, Wolfgang Hofer, Markus Lehner
September 22, 2021
The recycling rates, especially those from plastic packaging waste, have to be increased according to the European Union directive in the next years. Besides many other technologies, the pyrolysis of plastic wastes seems to be an efficient supplementary opportunity to treat mixed and unpurified plastic streams. For this reason, a pyrolysis process was developed for the chemical recycling of hydrocarbons from waste polyolefins. The obtained products can be further processed and upgraded in crude oil refineries, so that also monomers can be recovered, which are used for the plastic polymerization again. However, to achieve a scale up to a demo plant, a kinetic model for predicting the yields of the plastic pyrolysis in a tubular reactor is needed. For this reason, a pilot plant was built, in which different plastics and carrier fluids can be tested. Based on the data generated at the pilot plant, a very practical and suitable model was found to describe the plastic co-pyrolysis of the carrier fluid with polypropylene (PP) and low density and high density polyethylene (HDPE and LDPE), respectively. The physical and chemical mechanisms of the co-pyrolysis in the tubular reactor are successfully investigated.
Keywords
feedstock recycling, kinetic modeling, lumped modeling, plastic pyrolysis, ReOil
Suggested Citation
Lechleitner AE, Schubert T, Hofer W, Lehner M. Lumped Kinetic Modeling of Polypropylene and Polyethylene Co-Pyrolysis in Tubular Reactors. (2021). LAPSE:2021.0729
Author Affiliations
Lechleitner AE: Chair of Process Technology and Industrial Environmental Protection, Montanuniversitaet Leoben, Franz-Josef-Straße 18, 8700 Leoben, Austria [ORCID]
Schubert T: Wien Energie GmbH, Thomas-Klestil-Platz 14, 1030 Wien, Austria [ORCID]
Hofer W: OMV Downstream GmbH, Mannswoerther Straße 28, 2320 Schwechat, Austria
Lehner M: Chair of Process Technology and Industrial Environmental Protection, Montanuniversitaet Leoben, Franz-Josef-Straße 18, 8700 Leoben, Austria
Journal Name
Processes
Volume
9
Issue
1
First Page
pr9010034
Year
2020
Publication Date
2020-12-25
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr9010034, Publication Type: Journal Article
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LAPSE:2021.0729
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doi:10.3390/pr9010034
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Sep 22, 2021
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Sep 22, 2021
 
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Sep 22, 2021
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Original Submitter
Calvin Tsay
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