Plastics waste management: A review of pyrolysis technology

The world is today faced with the problem of plastic waste pollution more than ever before. Global plastic production continues to accelerate, despite the fact that recycling rates are comparatively low, with only about 15% of the 400 million tonnes of plastic currently produced annually being recyc...

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Main Authors: Wilson Uzochukwu Eze, Reginald Umunakwe, Henry Chinedu Obasi, Michael Ifeanyichukwu Ugbaja, Cosmas Chinedu Uche, Innocent Chimezie Madufor
Format: Article
Language:English
Published: AIMS Press 2021-07-01
Series:Clean Technologies and Recycling
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/ctr.2021003?viewType=HTML
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author Wilson Uzochukwu Eze
Reginald Umunakwe
Henry Chinedu Obasi
Michael Ifeanyichukwu Ugbaja
Cosmas Chinedu Uche
Innocent Chimezie Madufor
author_facet Wilson Uzochukwu Eze
Reginald Umunakwe
Henry Chinedu Obasi
Michael Ifeanyichukwu Ugbaja
Cosmas Chinedu Uche
Innocent Chimezie Madufor
author_sort Wilson Uzochukwu Eze
collection DOAJ
description The world is today faced with the problem of plastic waste pollution more than ever before. Global plastic production continues to accelerate, despite the fact that recycling rates are comparatively low, with only about 15% of the 400 million tonnes of plastic currently produced annually being recycled. Although recycling rates have been steadily growing over the last 30 years, the rate of global plastic production far outweighs this, meaning that more and more plastic is ending up in dump sites, landfills and finally into the environment, where it damages the ecosystem. Better end-of-life options for plastic waste are needed to help support current recycling efforts and turn the tide on plastic waste. A promising emerging technology is plastic pyrolysis; a chemical process that breaks plastics down into their raw materials. Key products are liquid resembling crude oil, which can be burned as fuel and other feedstock which can be used for so many new chemical processes, enabling a closed-loop process. The experimental results on the pyrolysis of thermoplastic polymers are discussed in this review with emphasis on single and mixed waste plastics pyrolysis liquid fuel.
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spelling doaj.art-05eab40004364f3897ce223dc4004e7d2022-12-22T04:42:17ZengAIMS PressClean Technologies and Recycling2770-45802021-07-0111506910.3934/ctr.2021003Plastics waste management: A review of pyrolysis technologyWilson Uzochukwu Eze 0Reginald Umunakwe1Henry Chinedu Obasi 2Michael Ifeanyichukwu Ugbaja3Cosmas Chinedu Uche 4Innocent Chimezie Madufor51. Department of Polymer Technology, Nigerian Institute of Leather and Science Technology, P.M.B. 1034, Zaria, Nigeria2. Department of Metallurgical and Material Engineering, Federal University, Oye-Ekiti, Nigeria3. Department of Polymer and Textile Engineering, School of Engineering and Engineering Technology, Federal University of Technology, P.M.B. 1526, Owerri, Nigeria1. Department of Polymer Technology, Nigerian Institute of Leather and Science Technology, P.M.B. 1034, Zaria, Nigeria4. Department of Environmental Management, School of Environmental Sciences, Federal University of Technology, P.M.B. 1526, Owerri, Nigeria3. Department of Polymer and Textile Engineering, School of Engineering and Engineering Technology, Federal University of Technology, P.M.B. 1526, Owerri, NigeriaThe world is today faced with the problem of plastic waste pollution more than ever before. Global plastic production continues to accelerate, despite the fact that recycling rates are comparatively low, with only about 15% of the 400 million tonnes of plastic currently produced annually being recycled. Although recycling rates have been steadily growing over the last 30 years, the rate of global plastic production far outweighs this, meaning that more and more plastic is ending up in dump sites, landfills and finally into the environment, where it damages the ecosystem. Better end-of-life options for plastic waste are needed to help support current recycling efforts and turn the tide on plastic waste. A promising emerging technology is plastic pyrolysis; a chemical process that breaks plastics down into their raw materials. Key products are liquid resembling crude oil, which can be burned as fuel and other feedstock which can be used for so many new chemical processes, enabling a closed-loop process. The experimental results on the pyrolysis of thermoplastic polymers are discussed in this review with emphasis on single and mixed waste plastics pyrolysis liquid fuel.https://www.aimspress.com/article/doi/10.3934/ctr.2021003?viewType=HTMLconventional waste plastics recyclingpyrolysisliquid fuelmicrowave-assisted pyrolysisproperties of liquid fuel
spellingShingle Wilson Uzochukwu Eze
Reginald Umunakwe
Henry Chinedu Obasi
Michael Ifeanyichukwu Ugbaja
Cosmas Chinedu Uche
Innocent Chimezie Madufor
Plastics waste management: A review of pyrolysis technology
Clean Technologies and Recycling
conventional waste plastics recycling
pyrolysis
liquid fuel
microwave-assisted pyrolysis
properties of liquid fuel
title Plastics waste management: A review of pyrolysis technology
title_full Plastics waste management: A review of pyrolysis technology
title_fullStr Plastics waste management: A review of pyrolysis technology
title_full_unstemmed Plastics waste management: A review of pyrolysis technology
title_short Plastics waste management: A review of pyrolysis technology
title_sort plastics waste management a review of pyrolysis technology
topic conventional waste plastics recycling
pyrolysis
liquid fuel
microwave-assisted pyrolysis
properties of liquid fuel
url https://www.aimspress.com/article/doi/10.3934/ctr.2021003?viewType=HTML
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AT reginaldumunakwe plasticswastemanagementareviewofpyrolysistechnology
AT henrychineduobasi plasticswastemanagementareviewofpyrolysistechnology
AT michaelifeanyichukwuugbaja plasticswastemanagementareviewofpyrolysistechnology
AT cosmaschineduuche plasticswastemanagementareviewofpyrolysistechnology
AT innocentchimeziemadufor plasticswastemanagementareviewofpyrolysistechnology