Co-pyrolysis of hydrothermally pre-treated microalgae residue and polymeric waste (plastic/tires): Comparative and dynamic analyses of pyrolytic behaviors, kinetics, chars, oils, and in-situ gas emissions

Kumar, Akash; Yan, Beibei; Cheng, Zhanjun; Tao, Junyu; Hassan, Mahdi; Li, Jian; Kumari, Lata; Oba, Belay Tafa; Aborisade, Moses Akintayo; Jamro, Imtiaz Ali; Chen, Guanyi

doi:10.1016/j.fuel.2022.125814

Cited by 35 publications

(8 citation statements)

References 69 publications

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“…By comparing the FT‐IR spectra of the two chars, we can conclude that the functional groups present in the produced chars show a high amount of oxygen in the chars produced from pyrolysis without a catalyst, that is, the zeolite A4 catalyst tends to remove oxygen, and the amount of aromatics in the chars obtained from catalytic pyrolysis is more, which can be caused by increasing the rate of aromatic formation reaction. [ 43 ] Also, the comparison of peaks related to chars with feedstock shows extensive changes in the structure of raw materials during the pyrolysis process. For example, the amount of oxygenated compounds in the structure of feedstock is higher.…”

Section: Resultsmentioning

confidence: 99%

Coke Formation and Zeolite Catalyst Effects on Products from Co‐pyrolysis of Waste Tyre and Poplar Wood in a Semi‐Batch Reactor under N₂ Atmosphere

Hoseini,

Atashi,

Gholizadeh

et al. 2024

Energy Tech

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Herein, it is aimed to investigate the effect of zeolite catalyst on the co‐pyrolysis process of waste tyre and poplar wood. A laboratory‐sized reactor is used to pyrolyze 15 g of sample at 500 °C under atmospheric pressure. In the results, it is indicated that co‐pyrolysis affects the properties of the products. Comparing to single feedstock, the co‐pyrolysis enhances the yields of bio‐oil, while reducing the formation of char. The pyrolysis of poplar wood produces 23.3 wt% of bio‐oil, while the pyrolysis of tyre yields 25 wt% of bio‐oil. However, it is 31.29 wt% for the co‐pyrolysis process. Higher content of valuable compounds are formed in the bio‐oil, which improve the fuel properties of the bio‐oil. The zeolite catalyst alters the characteristics of the products obtained from the co‐pyrolysis process. The gaseous products show a decrease in the concentrations of carbon monoxide and carbon dioxide when the catalyst is present. The liquid product analysis reveals the presence of light aromatics such as ethyl benzene and light linear compounds such as alkanes including octane, hexane, etc. The analysis of the catalysts suggests that a very small amount of coke deposits on the catalyst due to the slight increase in carbon content.

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Section: Resultsmentioning

confidence: 99%

Coke Formation and Zeolite Catalyst Effects on Products from Co‐pyrolysis of Waste Tyre and Poplar Wood in a Semi‐Batch Reactor under N₂ Atmosphere

Hoseini,

Atashi,

Gholizadeh

et al. 2024

Energy Tech

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“…The share of liquid products, as in the case of gas, is strongly dependent on the conditions of conducting the conversion of the raw material and varies from 30 to 50%. As indicated by the liquid phase analyses performed by Kumar et al [101,102] and Wang et al [103], the main components are aromatic and aliphatic hydrocarbons, nitrogen compounds, phenols, organic acids, aldehydes, ketones, esters, furans, or polycyclic aromatic hydrocarbons. The resulting oil can be used as a potential fuel substitute, for which its calorific value and sulphur content should be measured [29,104].…”

Section: Characteristics Of Pyrolytic Oilmentioning

confidence: 99%

Studies on the Thermochemical Conversion of Waste Tyre Rubber—A Review

Soprych,

Czerski,

Grzywacz

2023

Energies

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Waste from scrap tyres, due to its high volume (17 million Mg per year) and durability resulting from the physical and chemical properties, requires innovative approaches for efficient and environmentally friendly management. In many countries, the landfilling of waste tyres is banned (e.g., EU, USA, UK); however, waste tyres can be a source of valuable materials such as carbon black, pyrolysis oil, hydrogen-rich syngas, tyre char, as well as energy. The purpose of this article is to provide a synthesis of the state of knowledge regarding the thermal conversion of waste tyres by pyrolysis and gasification, taking into account the use of different measurement techniques and reactor types. These technologies are forward-looking and have a high degree of flexibility in terms of product sourcing, depending on the process conditions. The properties of waste from used tyres were analysed, i.e., the composition of the content of individual components and the main chemical substances. The results encompassed ultimate and proximate analyses of rubber from tyres, as well as the physical and chemical parameters of the tyre char obtained through pyrolysis. This article compiles available literature data regarding the impact of process and raw material parameters, such as temperature and time conditions, pressure, particle size, and catalyst addition on the pyrolysis and gasification processes. It also explores the influence of these factors on the yield and properties of the products, including pyrolysis oil, gas, synthesis gas, and tyre char.

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“…The high potassium content in the samples is due to the fertilization process, which consists of adding fertilizers such as NPK (nitrogen, phosphorus and potassium) to the soil. Studies indicate that the presence of metals and their oxides in the ash content of biomass can have a catalytic effect on the pyrolysis process, working with active sites capable of increasing the surface area 21 . Wang et al 22 demonstrated that CaO, MgO and Al 2 O 3 oxides are able to improve the quality of final products and the CaO used as catalysts during pyrolysis of biomass could reduce the CO and CO 2 content through reactions of carbonation and dehydration.…”

Section: Biomass Characterizationmentioning

confidence: 99%

Colored cotton crop wastes valorization through pyrolysis: a study of energetic characterization and analytical Py-GC/MS

Silva,

Deus Junior,

Calixto

et al. 2024

Sci Rep

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The present work aimed to study different parts of colored cotton waste through energetic characterization and analytical flash pyrolysis. Stalks and bolls of BRS cotton cultivars from Sementes do Brasil (Green, Ruby, Topaz and Jade) were studied, using white cotton (BRS 286) as a comparison. The energetic potential of biomass was evaluated by bulk density, High Heating Value (HHV), proximate and ultimate analysis, compositional and thermogravimetric analysis (TGA). Pyrolysis was performed in a micro-pyrolyzer and the products were identified by gas chromatography and mass spectroscopy (Py-GC/MS). The results indicated a significant energetic potential, suggesting that can be used as an alternative energy source for thermochemical processes. The results of conventional pyrolysis indicated the presence of oxygenated compounds of different organic groups: aldehydes, ketones, phenols, furans and ethers, characteristic of the decomposition of lignocellulosic materials. Light organic acids in the C1-C4 range stood out the most, followed by phenols that appeared in a considerable proportion. Finally, it is concluded that the energy potential and pyrolysis products of the different parts (stalks and bolls) of colored cotton waste can be used to generate bioenergy and various chemical compounds of plant origin from green chemistry.

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Co-pyrolysis of hydrothermally pre-treated microalgae residue and polymeric waste (plastic/tires): Comparative and dynamic analyses of pyrolytic behaviors, kinetics, chars, oils, and in-situ gas emissions

Cited by 35 publications

References 69 publications

Coke Formation and Zeolite Catalyst Effects on Products from Co‐pyrolysis of Waste Tyre and Poplar Wood in a Semi‐Batch Reactor under N₂ Atmosphere

Coke Formation and Zeolite Catalyst Effects on Products from Co‐pyrolysis of Waste Tyre and Poplar Wood in a Semi‐Batch Reactor under N₂ Atmosphere

Studies on the Thermochemical Conversion of Waste Tyre Rubber—A Review

Colored cotton crop wastes valorization through pyrolysis: a study of energetic characterization and analytical Py-GC/MS

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Co-pyrolysis of hydrothermally pre-treated microalgae residue and polymeric waste (plastic/tires): Comparative and dynamic analyses of pyrolytic behaviors, kinetics, chars, oils, and in-situ gas emissions

Cited by 35 publications

References 69 publications

Coke Formation and Zeolite Catalyst Effects on Products from Co‐pyrolysis of Waste Tyre and Poplar Wood in a Semi‐Batch Reactor under N2 Atmosphere

Coke Formation and Zeolite Catalyst Effects on Products from Co‐pyrolysis of Waste Tyre and Poplar Wood in a Semi‐Batch Reactor under N2 Atmosphere

Studies on the Thermochemical Conversion of Waste Tyre Rubber—A Review

Colored cotton crop wastes valorization through pyrolysis: a study of energetic characterization and analytical Py-GC/MS

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Product

Resources

About

Coke Formation and Zeolite Catalyst Effects on Products from Co‐pyrolysis of Waste Tyre and Poplar Wood in a Semi‐Batch Reactor under N₂ Atmosphere

Coke Formation and Zeolite Catalyst Effects on Products from Co‐pyrolysis of Waste Tyre and Poplar Wood in a Semi‐Batch Reactor under N₂ Atmosphere