Status
In Progress
Material Class
Polymers
specific materials
Polyethylene terephthalate (PET)
Polypropylene (PP)
20-01-RR-4034

Chemical Recycling of Mixed PET/Polyolefin Streams Through Sequential Pyrolysis and Catalytic Upgrading

NODE
Technical Thrust
Recycling & Recovery
Chemical & Solvent-Based Recycling & Separation (Atomic/Molecular) Technologies
project Members
Penn state logo
Northwestern university logo
Shaw logo
About

This project seeks to convert mixed plastics waste to re-usable products through the development of catalysts to convert polymer pyrolysis products to BTX and olefins. The feedstock for the proposed two-stage process (pyrolysis followed by catalytic upgrading of the pyrolysis products to BTX and olefins) is a mix of PET and PP waste plastics.

PUBLICATIONS

April 23, 2024
Conversion of Polypropylene into Light Hydrocarbons and Aromatics by Metal Exchanged Zeolite Catalysts
Journal Article
Pub. Info: American Chemical Society, Langmuir
April 30, 2024
Parametric Study of Polyethylene Primary Decomposition Using a Micropyrolyzer Coupled with Two-Dimensional Gas Chromatography
Journal Article
Pub. Info: ACS Sustainable Chem. Eng.
July 1, 2023
Insights into Co-Pyrolysis of Polyethylene Terephthalate and Polyamide 6 Mixture through Experiments, Kinetic Modeling and Machine Learning
Journal Article
Pub. Info: Chemical Engineering Journal 
January 1, 2024
Investigating Primary Decomposition of Polypropylene through Detailed Compositional Analysis using Two-Dimensional Gas Chromatography and Principal Component Analysis
Journal Article
Pub. Info: Journal of Analytical and Applied Pyrolysis (2024)
June 19, 2023
Quantification of Hydrogen Spillover on Cu-TiO2 and its Effect on Alkene Hydrogenation
Presentation
Pub. Info: NAM28, Providence, RI
June 11, 2023
Investigation of Primary Decomposition of Polypropylene using a Py-GC×GC-FID/TOF-MS System
Presentation
Pub. Info: 27th International Symposium for Chemical Reaction Engineering, Québec City, Québec, Canada
June 11, 2023
Insights Into Co-Pyrolysis of Polymer Mixtures through Experiments, Kinetic Modeling and Machine Learning
Presentation
Pub. Info: 27th International Symposium for Chemical Reaction Engineering, Québec City, Québec, Canada
August 22, 2023
Hydride-Driven Chemoselective C-H Bond Formation of Benzoic Acid on Anatase TiO2
Presentation
Pub. Info: NAM28, Providence, RI, June 19-23, 2023
August 22, 2023
PEaCE: A Chemistry-Oriented Dataset for Optical Character Recognition on Scientific Documents
Presentation
Pub. Info: Submitted to 23rd ACM Symposium on Document Engineering (DocEng'23), Limerick, Ireland, August 22-25, 2023 https://doceng.org/doceng2023
January 1, 2022
Characterization of SPW Pyrolysis Oils: Products Spectra and Opportunities
Book Chapter

Perez, B.A., Krishna, J.V.J, Toraman, H.E. 2022. Characterization of Solid Plastic Waste Pyrolysis Oils: Products Spectra and Opportunities. In Advances in Chemical Engineering 60: Towards Circular Economy: Closing the Loop with Chemical Recycling of Solid Plastic Waste. Moscatelli, D., Pelucchi, M., Ed. Academic Press

Pub. Info: In Advances in Chemical Engineering 60: Towards Circular Economy: Closing the Loop with Chemical Recycling of Solid Plastic Waste..
January 1, 2022
Catalytic Conversion of SPW and Products Upgrading
Book Chapter

Bozkurt, O., Okonsky, S.T., Alexopoulos, K., Toraman, H.E. 2022. Catalytic Conversion of Solid Plastic Waste and Products Upgrading. In Advances in Chemical Engineering 60: Towards Circular Economy: Closing the Loop with Chemical Recycling of Solid Plastic Waste. Moscatelli, D. Pelucchi, M., Ed. Academic Press

Pub. Info: In Advances in Chemical Engineering 60: Towards Circular Economy: Closing the Loop with Chemical Recycling of Solid Plastic Waste.
April 25, 2022
Hydrogen Activation and Spillover on Anatase TiO2-Supported Ag Single Atom Catalysts
Journal Article

Hu, J., Kim, E. M., Janik, M. J., & Alexopoulos, K. (2022). Hydrogen Activation and Spillover on Anatase TiO2-Supported Ag Single-Atom Catalysts. The Journal of Physical Chemistry C, https://doi.org/10.1021/acs.jpcc.2c01670

Pub. Info: The Journal of Physical Chemistry C
April 27, 2022
Catalytic Co-Pyrolysis of Mixed Plastics Over Multiple Zeolite Catalysts: Interaction Effects and Kinetic Modelling
Presentation

Okonsky, S. T. (presenter), Jayarama Krishna, J.V., & Toraman, H. E. Catalytic co-pyrolysis of mixed plastics over multiple zeolite catalysts: Interaction effects and kinetic modelling, 2022 Penn State Energy and Mineral Engineering Research Showcase, April 27, 2022.

Pub. Info: 2022 Penn State Energy and Mineral Engineering Research Showcase, April 27, 2022
April 27, 2022
Comprehensive Two-Dimensional Gas Chromatography Method Development for the Pyrolysis of Polypropylene
Presentation

Perez, B. (presenter) & Toraman, H.E. Comprehensive Two-Dimensional Gas Chromatography Method Development for the Pyrolysis of Polypropylene. 2022 Penn State Energy and Mineral Engineering Research Showcase, April 27, 2022.

Pub. Info: 2022 Penn State Energy and Mineral Engineering Research Showcase, April 27, 2022
April 27, 2022
Catalytic Co-Pyrolysis of LDPE and PET With HZSM-5, H-Beta, and HY: Experiments and Kinetic Modelling
Poster

Okonsky, S. T.,Jayarama Krishna, J.V., & Toraman, H. E. Catalytic co-pyrolysis of LDPE and PET with HZSM-5, H-Beta, and HY: Experiments and kinetic modelling, 2022 Penn State Energy and Mineral Engineering Research Showcase, April 27, 2022.

Pub. Info: 2022 Penn State Energy and Mineral Engineering Research Showcase, April 27, 2022
April 27, 2022
Modeling the Pyrolysis Behavior of Plastic Mixtures Using Artificial Neural Network
Poster

Perez, B. & Toraman, H.E. Comprehensive Two-Dimensional Gas Chromatography Method Development for the Pyrolysis of Polypropylene. 2022 Penn State Energy and Mineral Engineering Research Showcase, April 27, 2022.

Pub. Info: 2022 Penn State Energy and Mineral Engineering Research Showcase, April 27, 2022
June 30, 2022
Catalytic Co-Pyrolysis of LDPE and PET With HZSM-5, H-Beta, and HY: Experiments and Kinetic Modelling
Journal Article

Okonsky, S. T.,Jayarama Krishna, J.V., & Toraman, H. E. Catalytic co-pyrolysis of LDPE and PET with HZSM-5, H-Beta, and HY: Experiments and kinetic modelling.  Reaction Chemistry & Engineering, Issue 10 (2022), part of themed collection: Emerging Investigator Series.

Pub. Info: Reaction Chemistry & Engineering
September 1, 2022
Fundamental Understanding of Interaction Effects in Mixed Plastic Waste Pyrolysis
Presentation

Toraman, H.E. Fundamental understanding of interaction effects in mixed plastic waste pyrolysis. 2022. American Chemical Society (ACS) Fall 2022 Meeting. Chemical Deconstruction & Upcycling of Polymer Waste Symposium. Invited talk

Pub. Info: American Chemical Society (ACS) Fall 2022 Meeting, August 21-25, 2022 Chicago, IL
October 12, 2022
Transformer-Based Optical Character Recognition Model for Chemistry Scholarly Papers
Presentation

Heaton, C., Zhang, N., Toraman, H.E., Mitra, P. Transformer-based Optical Character Recognition Model for Chemistry Scholarly Papers. Penn State Institute for Computational and Data Sciences (ICDS) Symposium, 2022.

Pub. Info: Penn State Institute for Computational and Data Sciences (ICDS) Symposium, October 12-14, 2022

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