Thermal behavior and kinetic study for catalytic co-pyrolysis of biomass with plastics

Zhang, Xuesong; Lei, Hanwu; Zhu, Lei; Zhu, Xiaolu; Qian, Moriko; Yadavalli, Gayatri; Wu, Ji; Chen, Shulin

doi:10.1016/j.biortech.2016.08.068

Cited by 172 publications

(70 citation statements)

References 29 publications

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“…The maximum weightlessness rate decreased and conversion rate increased, Ni‐based catalyst can distinctly reduce the thermal reaction temperature and accelerate transformation of biomass. This finding is consistent with the results of Xiang and Zhang . A positive synergistic interaction was observed between the biomass and plastics, which could decrease the formation of solid residue.…”

Section: Resultsmentioning

confidence: 99%

“…Among many pyrolysis processes and technologies, the pore size, catalyst acidity, and biomass hydrogen to carbon effective ratio were the important factors influencing the product yield and selectivity . Therefore, in order to increase the yield of products, aromatics selectivity and reduced the deactivation of catalysts, catalytic copyrolysis of biomass with hydrogen‐enriched feedstock represents an original and feasible technical route to solving these issues . Waste plastics present higher effective hydrogen carbon ratios, better synergistic effects and abundant hydrogen sources; thus, waste plastics are considered the ideal coreactant to enhance the aromatic selectivity and lower the coke formation during catalytic copyrolysis.…”

Section: Introductionmentioning

confidence: 99%

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Catalytic copyrolysis of metal impregnated biomass and plastic with Ni‐based HZSM‐5 catalyst: Synergistic effects, kinetics and product distribution

et al. 2020

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The present work aims to investigate the thermal behavior, kinetics, thermodynamics, and product distribution during copyrolysis of transition metal salt (Ni, Co, Zn, Cu, and Fe)-added biomass and model compounds with low density polyethylene(LDPE) over a Ni-based HZSM-5 catalyst by TGA and fixed bed reactor. The interactions and reaction mechanisms during copyrolysis were evaluated. The influence of Ni-impregnated biomass (C-M) and Nimodified HZSM-5 (Ni/HZ) on the formation of pyrolysis bio-oil from biomass and model compounds and its subsequent effect on catalytic pyrolysis vapor upgrading was discussed. The results indicated that the presence of transition metal decreased the thermal degradation temperature and thermodynamics parameters; maximum decomposition rate, and reaction complexity. Ni/HZ catalyst could further decrease the activation energy, accelerate the reaction rate and change reaction process, and the modified samples/LDPE under copyrolysis with HZSM-5 catalyst presented a more significant effect than Ni/HZ catalyst. Subsequently, the Ea of pine, cellulose and lignin changed from 24.11, 18.29, and 28.68 kJ/mol (CP@Ni/HZ) to 56.04, 69.84, and 16.21 kJ/mol (CP-Ni@HZSM-5), respectively. In addition, Ni could inhibit the depolymerization of cellulose and promoted the formation of char, coke, and lignin derived phenolics. And Ni-impregnated biomass reduced the formation of desired aromatic hydrocarbons, but result in increasing of the char and non-condensable gases. But Ni/HZ catalysts promote the conversion of biomass to target products.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Catalytic copyrolysis of metal impregnated biomass and plastic with Ni‐based HZSM‐5 catalyst: Synergistic effects, kinetics and product distribution

et al. 2020

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“…Moreover, the formation of a larger amount of aromatics was accompanied by a slight increase in the carbon oxide yield, probably due to the enhancement of the decarbonylation reaction. Other studies devoted to the co-pyrolysis of lignocellulosic biomass with food waste (consisting of rice, vegetables, fruits, meat, or oil) or plastics (low-density polyethylene) [20,21] confirmed that this is a promising method for the production of bio-oil.…”

Section: Application Of Zeolites and Mesoporous Materialsmentioning

confidence: 99%

“…The studies associated with the application of ZSM-5 are also focused on the determination of its catalytic performance in the decomposition of different feedstock or co-pyrolysis processes [12,[19][20][21][22][23]. Fisher et al [19] investigated the effect of the use of ZSM-5 catalyst on the course of fast pyrolysis of spent coffee grounds.…”

Section: Application Of Zeolites and Mesoporous Materialsmentioning

confidence: 99%

Development of Heterogeneous Catalysts for Thermo-Chemical Conversion of Lignocellulosic Biomass

Grams

Ruppert

2017

Energies

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Lignocellulosic biomass is one of the most attractive renewable resources that can be used for the production of biofuels and valuable chemicals. However, problems associated with the low efficiency of its conversion and poor selectivity to desired products remain. Therefore, in recent years researchers have focused on the design of highly active and stable catalysts, enabling an increase in the effectiveness of lignocellulosic biomass processing. This work is devoted to the presentation of the latest trends in the studies of the heterogeneous catalysts used in thermo-chemical conversion of such feedstock. The systems applied for the production of both bio-oil and hydrogen-rich gas are discussed. Zeolites, mesoporous materials, metal oxides, supported metal catalysts, and modifications of their structure are described. Moreover, the impact of the physicochemical properties of the presented catalyst on their catalytic performance in the mentioned processes is demonstrated.

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“…The common feature of plastic waste is the high volatile content, high viscosity with low melting points and high energy density due to very low moisture and ash contents [25]. Plastics are highly suitable for co-pyrolysis with biomass in order to improve compound diversity and quality [26]. Biomass and plastics are comprised of different monomers.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Valorization of Animal Manure and Recycled Polyester: Co-pyrolysis Synergy

Akyürek

2019

Sustainability

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In this study sustainable valorization of cattle manure, recycled polyester, and their blend (1:1 wt.%) were examined by the thermogravimetric analysis (TGA) method. Pyrolysis tests were performed at 10, 30, and 50 °C/min heating rate from room temperature to 1000 °C under a nitrogen environment with a flow of 100 cm3/min. Kinetics of decomposition were analyzed by using Flynn–Wall–Ozawa (FWO) method. Based on activation energies and conversion points, a single region was established for recycled polyester while three regions of pyrolysis were obtained for cattle manure and their blend. Comparison between experimental and theoretical profiles indicated synergistic interactions during co-pyrolysis in the high temperature region. The apparent activation energies calculated by FWO method for cattle manure, recycled polyester. and their blend were 194.62, 254.22 and 227.21 kJ/mol, respectively. Kinetics and thermodynamic parameters, including E, ΔH, ΔG, and ΔS, have shown that cattle manure and recycled polyester blend is a remarkable feedstock for bioenergy.

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Thermal behavior and kinetic study for catalytic co-pyrolysis of biomass with plastics

Cited by 172 publications

References 29 publications

Catalytic copyrolysis of metal impregnated biomass and plastic with Ni‐based HZSM‐5 catalyst: Synergistic effects, kinetics and product distribution

Catalytic copyrolysis of metal impregnated biomass and plastic with Ni‐based HZSM‐5 catalyst: Synergistic effects, kinetics and product distribution

Development of Heterogeneous Catalysts for Thermo-Chemical Conversion of Lignocellulosic Biomass

Sustainable Valorization of Animal Manure and Recycled Polyester: Co-pyrolysis Synergy

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