Production of light olefins and aromatics via catalytic co-pyrolysis of biomass and plastic

Sekyere, Daniel Takyi; Zhang, Jinhong; Chen, Yaozheng; Huang, Yansheng; Wang, Mengfei; Wang, Jiaxu; Niwamanya, Noah; Barigye, Andrew; Tian, Yuanyu

doi:10.1016/j.fuel.2022.126339

Cited by 52 publications

(16 citation statements)

References 57 publications

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“…The group copyrolyzed pine sawdust with HDPE (ratio = 0.4) and HZSM-5 as catalyst in an autoclave reactor, obtaining a BTX selectivity as high as 70.6% in the oil obtained. Tian’s group had screened catalysts (acidic, basic, and acid–base tandem) for the copyrolysis process of pine and LDPE. They obtained the highest selectivity of 45% for BTX and 25% for light olefins when the process is run at 600 °C, over base–acid tandem catalyst (CaAl-Z40, ratio 1:1).…”

Section: High-value Products From Waste Plasticsmentioning

confidence: 99%

“…(b) Product distribution and (c) hydrocarbon selectivity of catalytic copyrolysis of LDPE and pine at different ratio of Z40 to CaAl. Adapted with permission from ref . Copyright Elsevier.…”

Section: High-value Products From Waste Plasticsmentioning

confidence: 99%

“…Valorization of waste plastic (or chemical upcycling) is one of the promising ways that was developed in the past decade to increase the life cycle of plastics (Figure ), on top of the recycling methods. This includes waste plastic upcycling to valuable products like carbon nanomaterials, − fuels, − and other small-molecule chemicals. − These materials are traditionally produced from fossil fuels which are suitable candidates for production from waste plastic (which is also mainly produced from fossil fuels). This allows the conservation of natural resources and move away from the reliance on fossil fuels and other nonrenewable resources.…”

Section: Introductionmentioning

confidence: 99%

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Thermochemical Valorization of Waste Plastic for Production of Synthetic Fuels, Fine Chemicals, and Carbon Nanotubes

Tang,

Chan,

Chai

et al. 2024

ACS Sustainable Chem. Eng.

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Globally, approximately 300 million metric tonnes of plastic waste are generated annually, and over 90% of them are either disposed to the landfill or incinerated. Though there are commitments to reduce waste plastics, it has its limitations. In this review, the various types of thermochemical processes (pyrolysis, gasification, and hydrothermal liquefaction) used for plastic waste upcycling are first introduced. The production of synthetic fuel, fine chemicals, and carbon nanotubes through these processes are then discussed, with the effects of each factor scrutinized. Technical challenges of the production using plastic waste and how it can be overcome are then highlighted. Economical and environmental assessment of the processes are also analyzed to determine whether such processes are viable for upcycling of waste plastic, closing the carbon economy loop.

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Section: High-value Products From Waste Plasticsmentioning

confidence: 99%

Section: High-value Products From Waste Plasticsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Thermochemical Valorization of Waste Plastic for Production of Synthetic Fuels, Fine Chemicals, and Carbon Nanotubes

Tang,

Chan,

Chai

et al. 2024

ACS Sustainable Chem. Eng.

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“…For instance, the Si/Al ratio of the zeolite affects the cracking reactions during catalytic pyrolysis. Significantly more light oil is produced by a zeolite with a lower Si/Al ratio, whereas zeolite with a greater Si/Al ratio has an impact on the pyrolysis liquid production and its constituents . Shorter residence times can result in better oil quality from a selectivity viewpoint.…”

Section: Products Of Catalytic Pyrolysis and Their Applicationmentioning

confidence: 99%

Recent Research Advancements in Catalytic Pyrolysis of Plastic Waste

Mishra

Kumar

Singh

et al. 2023

ACS Sustainable Chem. Eng.

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The disposal of plastic waste is currently one of the major global issues affecting environmental balance and mankind. It is therefore crucial to turn waste plastic into value-added products. Thermochemical recycling techniques have been researched extensively to generate fuels, monomers, and other value-added products. It has been determined that pyrolysis is an effective method for chemical recycling. Plastic wastes are transformed into products including liquid oil, gas, and solid residues during the thermal breakdown. Low-quality liquid oil and gaseous products are also produced through thermal pyrolysis, which demands a long retention period and high temperature. Catalytic pyrolysis helps to deal with these problems. To obtain higher quantities of fuel in the form of liquid or gas, varieties of catalysts, such as natural zeolite, Y-zeolite, HZSM-5, ZSM-5, FCC, mud, Ca(OH)2, Al2O3, and Fe2O3, are used. The present Perspective aims to briefly unveil the recent developments in the catalytic pyrolysis of plastic waste. It primarily focuses on the impact of catalytic pyrolysis on the yields and composition of products as well as their further applications. Also, an extensive review of techno-economic assessment based on capital and operating cost, utilization of coproducts, utilization as fuel, as well as feedstock logistics has been presented.

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“…There are various studies related to the co-pyrolysis of polymers with other materials of nonpolymer origin, from which there appeared to be a good potential to gain high-value products (Lin et al, 2020(Lin et al, , 2021Nandakumar et al, 2023;Sekyere et al, 2023;Zhao et al, 2020). For example, in the study by Lin et al (2020), a mixture of waste corn stover and HDPE was used as a feedstock for catalytic pyrolysis where a higher yield of mono-aromatics were produced (>70%).…”

Section: Zsm-5 and Hzsm-5mentioning

confidence: 99%

A review on catalytic pyrolysis of municipal plastic waste

Biakhmetov,

Dostiyarov,

et al. 2023

WIREs Energy & Environment

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Plastic pollution is a global issue that severely threatens the environment if not managed properly. Plastic waste is widely treated in unsustainable ways such as landfill and incineration that generally do not contribute to the circular economy or to the principles of the United Nation's sustainable development goals. Catalytic pyrolysis of plastic waste is considered an alternative solution with its potential of recovering fuels and chemicals from the plastic waste that is not recyclable. Here, we described for the first time the main steps required for running an operational pyrolysis plant from a whole system perspective. The recent advancement of plastic pyrolysis technologies is also described to guide the selection of relevant catalysts. The practical applications of products from the plastic pyrolysis are succinctly reviewed. This review will facilitate the development of the capacity to make better decisions upon the design and analysis of plastic pyrolysis processes and systems.This article is categorized under: Sustainable Energy > Bioenergy Climate and Environment > Circular Economy Emerging Technologies > Materials Sustainable Energy > Energy Efficiency

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Production of light olefins and aromatics via catalytic co-pyrolysis of biomass and plastic

Cited by 52 publications

References 57 publications

Thermochemical Valorization of Waste Plastic for Production of Synthetic Fuels, Fine Chemicals, and Carbon Nanotubes

Thermochemical Valorization of Waste Plastic for Production of Synthetic Fuels, Fine Chemicals, and Carbon Nanotubes

Recent Research Advancements in Catalytic Pyrolysis of Plastic Waste

A review on catalytic pyrolysis of municipal plastic waste

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