Thermo-catalytic co-pyrolysis of palm kernel shell and plastic waste mixtures using bifunctional HZSM-5/limestone catalyst: Kinetic and thermodynamic insights

Chee, April Ling Kwang; Chin, Bridgid Lai Fui; Goh, Sharon Meng Xuang; Chai, Yee Ho; Loy, Adrian Chun Minh; Cheah, Kin Wai; Yiin, Chung Loong; Lock, Serene Sow Mun

doi:10.1016/j.joei.2023.101194

Cited by 18 publications

(2 citation statements)

References 41 publications

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“…Using the Diels-Alder reaction between the alkenes in LDPE and furfural, as well as other furan derivatives in bio-oil, results in an increased aromatic yield. [5][6][7][8] Therefore, the copyrolysis of biomass and LDPE overcomes the issue of recycling waste plastics as well as providing a H source for H-deficient biooil. Currently, the most common catalysts used in the copyrolysis of biomass and plastics to create aromatics are C-based catalysts, metal oxides, and zeolites.…”

Section: Introductionmentioning

confidence: 99%

“…Low‐density polyethylene (LDPE) is a H‐rich plastic that can produce a large number of alkenes. Using the Diels–Alder reaction between the alkenes in LDPE and furfural, as well as other furan derivatives in bio‐oil, results in an increased aromatic yield 5‐8 . Therefore, the co‐pyrolysis of biomass and LDPE overcomes the issue of recycling waste plastics as well as providing a H source for H‐deficient bio‐oil.…”

Section: Introductionmentioning

confidence: 99%

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Aromatic‐rich oil production from catalytic co‐pyrolysis of pine sawdust and LDPE with bifunctional biochar by different preparation methods

Qiao,

Feng,

Zhang

2024

J of Chemical Tech & Biotech

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BACKGROUNDCatalytic co‐pyrolysis of biomass with waste plastics can produce high‐quality chemicals, making it a potential alternative to fossil fuels. The production of aromatic‐rich oil was achieved in this work by catalytic the co‐pyrolysis of pine sawdust and LDPE using a series of biochar made using different preparation methods. ZnCl2 was employed to activate biochar during the preparation process, owing to its optimal activity for the co‐pyrolysis intermediates. The study compared the effects of biochar activated using different treatment methods on the yield and fractions of pine sawdust and LDPE co‐pyrolysis in a fast pyrolysis tube furnace at 650 °C.RESULTSThe study indicates that the ZnCl2 biochar, prepared from pine sawdust by fast pyrolysis (F‐AC), exhibited the best aromatic catalytic activity. The selectivity to aromatic hydrocarbons was 72.53%, and the content of BTEX (benzene, toluene, ethylbenzene, and xylene) was 32.17%.CONCLUSIONThe Diels‐Alder reaction and aromatization were made more effective since to the Zn sites and large pore structure in F‐AC. Using FTIR, SEM, and XPS analysis, it was found that F‐AC contained more O‐containing groups in abundance, which improved its adsorption capacity for reaction intermediates. At the same time, the porous structure and high specific surface area of biochar provided a region for the reaction intermediate to interact with the active center containing O‐containing groups. This enhanced the synergy between biomass and plastics and raised the selectivity of aromatic hydrocarbons. It provides a reference for the application of carbon‐based materials in the co‐pyrolysis of biomass and waste plastics.This article is protected by copyright. All rights reserved.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Aromatic‐rich oil production from catalytic co‐pyrolysis of pine sawdust and LDPE with bifunctional biochar by different preparation methods

Qiao,

Feng,

Zhang

2024

J of Chemical Tech & Biotech

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Conjugated quantitative structure‐property relationship models: Prediction of kinetic characteristics linked by the Arrhenius equation

Zankov,

Madzhidov,

Baskin

et al. 2023

Molecular Informatics

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Conjugated QSPR models for reactions integrate fundamental chemical laws expressed by mathematical equations with machine learning algorithms. Herein we present a methodology for building conjugated QSPR models integrated with the Arrhenius equation. Conjugated QSPR models were used to predict kinetic characteristics of cycloaddition reactions related by the Arrhenius equation: rate constant log k , pre‐exponential factor log A , and activation energy E a . They were benchmarked against single‐task (individual and equation‐based models) and multi‐task models. In individual models, all characteristics were modeled separately, while in multi‐task models log k , log A and E a were treated cooperatively. An equation‐based model assessed log k using the Arrhenius equation and log A and E a values predicted by individual models. It has been demonstrated that the conjugated QSPR models can accurately predict the reaction rate constants at extreme temperatures, at which reaction rate constants hardly can be measured experimentally. Also, in case of small training sets conjugated models are more robust than related single‐task approaches.

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Thermal kinetic analysis and characterization of water hyacinth biomass for renewable energy application

Kumar,

Devnani,

Pal

2024

Biomass Conv. Bioref.

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Thermo-catalytic co-pyrolysis of palm kernel shell and plastic waste mixtures using bifunctional HZSM-5/limestone catalyst: Kinetic and thermodynamic insights

Cited by 18 publications

References 41 publications

Aromatic‐rich oil production from catalytic co‐pyrolysis of pine sawdust and LDPE with bifunctional biochar by different preparation methods

Aromatic‐rich oil production from catalytic co‐pyrolysis of pine sawdust and LDPE with bifunctional biochar by different preparation methods

Conjugated quantitative structure‐property relationship models: Prediction of kinetic characteristics linked by the Arrhenius equation

Thermal kinetic analysis and characterization of water hyacinth biomass for renewable energy application

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