Thermal behavior and kinetics of co-pyrolysis of cellulose and polyethylene with the addition of transition metals

Wang, Zhanghong; Shen, Dekui; Wu, Chunfei; Gu, Sai

doi:10.1016/j.enconman.2018.07.010

Cited by 49 publications

(26 citation statements)

References 31 publications

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“…ZSM-5 is robust catalyst that is well suited for the industrial pyrolysis of PE achieved very high conversions of oil fraction with a large proportion of aromatics in the liquid. There is a strong synergistic interaction between cellulose and PE, suggesting that PE should be mixed with lignocellulosic waste before pyrolysis [183]. The oil consists of very valuable aromatics that can be used as feedstocks in a variety of applications.…”

Section: Optimal Recycling Routementioning

confidence: 99%

Recycling of Bioplastics: Routes and Benefits

2020

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Continual reduction of landfill space along with rising CO 2 levels and environmental pollution, are global issues that will only grow with time if not correctly addressed. The lack of proper waste management infrastructure means gloablly commodity plastics are disposed of incorrectly, leading to both an economical loss and environmental destruction. The bioaccumulation of plastics and microplastics can already be seen in marine ecosystems causing a negative impact on all organisms that live there, ultimately microplastics will bioaccumulate in humans. The opportunity exists to replace the majority of petroleum derived plastics with bioplastics (bio-based, biodegradable or both). This, in conjunction with mechanical and chemical recycling is a renewable and sustainable solution that would help mitigate climate change. This review covers the most promising biopolymers PLA, PGA, PHA and bio-versions of conventional petro-plastics bio-PET, bio-PE. The most optimal recycling routes after reuse and mechanical recycling are: alcoholysis, biodegradation, biological recycling, glycolysis and pyrolysis respectively.

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Section: Optimal Recycling Routementioning

confidence: 99%

Recycling of Bioplastics: Routes and Benefits

2020

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“…2 Biomass can be considered as a potential alternative to fossil-based fuels considering its abundance in availability. With a production of 146 billion tons per annum, 3 biomass is one of the largest sources for energy production and supports 7.1% of overall electricity production. 4 In addition, to promote the early acceptance of biofuels many developed nations have amended legislation of biofuels to renewable fuel standards and renewable portfolio standards.…”

Section: Introductionmentioning

confidence: 99%

Discernment of synergy during the co‐pyrolysis of lipid‐extracted microalgae and digested municipal solid waste: a thermogravimetric–mass spectrometric study

Vuppaladadiyam

Antunes

Vuppaladadiyam

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND: The current study investigated the co-pyrolysis nature of biomasses, gas yields, kinetics and thermodynamics of Chroococcus sp. (CC), digested municipal solid waste (DMSW) and their mixtures using thermogravimetric analysis and mass spectrometry.RESULTS: Thermogravimetric/differential thermogravimetric analysis indicated three major weight loss stages: dehydration (50-150 °C), thermal degradation of structural components (150-550 °C) and char decomposition (550-800 °C). The gases released during the process mainly contained CO, CH 4 , CO 2 and H 2 as main components. Also, with an increase in the composition of CC, the hydrogen yields were noticed to increase. Model-free isoconversional methods, the Kissinger-Akahira-Sunose and Friedman methods, were considered to identify the activation energy. The kinetic results showed that an increase in the percentage of CC in the mixture lowered the activation energy. The activation energies recorded for CC,

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“…Therefore, the in-situ CP of RDF and the effectiveness of RDF for the co-feeding material during the CP of Kraft lignin (KL) were evaluated using pyrolyzer-gas chromatography/mass spectrometry (Py-GC/MS). Because, recently, Ni catalysts showed good catalytic activity for the production of renewable hydrocarbons [24][25][26], Ni Ni/HZSM-5 and Ni/desilicated HZSM-5 (Ni/DHZSM-5) were used as the catalysts to determine the effects of Ni and desilication on the catalytic activity of HZSM-5. Table 1 lists the physico-chemical properties, as well as the results of proximate and ultimate analysis results of KL and RDF used as samples in this study.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Co-Pyrolysis of Kraft Lignin with Refuse-Derived Fuels Using Ni-Loaded ZSM-5 Type Catalysts

2018

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The catalytic co-pyrolysis (CCP) of Kraft lignin (KL) with refuse-derived fuels (RDF) over HZSM-5, Ni/HZSM-5, and NiDHZSM-5 (Ni/desilicated HZSM-5) was carried out using pyrolyzer-gas chromatography/mass spectrometry (Py-GC/MS) to determine the effects of the nickel loading, desilication of HZSM-5, and co-pyrolysis of KL with RDF. The catalysts were characterized by Brunauer–Emmett–Teller surface area, X-ray diffraction, and NH3-temperature programed desorption. The nickel-impregnated catalyst improved the catalytic upgrading efficiency and increased the aromatic hydrocarbon production. Compared to KL, the catalytic pyrolysis of RDF produced larger amounts of aromatic hydrocarbons due to the higher H/Ceff ratio. The CCP of KL with RDF enhanced the production of aromatic hydrocarbons by the synergistic effect of hydrogen rich feedstock co-feeding. In particular, Ni/DHZSM-5 showed higher aromatic hydrocarbon formation owing to its higher acidity and mesoporosity.

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Thermal behavior and kinetics of co-pyrolysis of cellulose and polyethylene with the addition of transition metals

Cited by 49 publications

References 31 publications

Recycling of Bioplastics: Routes and Benefits

Recycling of Bioplastics: Routes and Benefits

Discernment of synergy during the co‐pyrolysis of lipid‐extracted microalgae and digested municipal solid waste: a thermogravimetric–mass spectrometric study

Catalytic Co-Pyrolysis of Kraft Lignin with Refuse-Derived Fuels Using Ni-Loaded ZSM-5 Type Catalysts

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