Thermochemical conversion of Phellinus pomaceus via supercritical fluid extraction and pyrolysis processes

Durak, Halil

doi:10.1016/j.enconman.2015.04.050

Cited by 42 publications

(10 citation statements)

References 63 publications

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“…Nevertheless, due to its high critical points and corrosive nature it produces less oil, and the final product achieved turns out to have high oxygenated compounds and high viscosity [ 89 , 90 ]. It is communicated in the previous literature that a good solvent should not be corrosive, can be conveniently separated from final product, has low critical points and augment the produced oil quality and quantity [ 91 ].…”

Section: Process Parametersmentioning

confidence: 99%

Pyrolysis of Polystyrene Waste: A Review

Maafa

2021

Polymers

119

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The manufacturing of polystyrene around the globe has escalated in the past years due to its huge applications in various areas. The perpetual market needs of polystyrene led the polystyrene wastes accretion in the landfill causing environmental deterioration. The soaring need for polystyrene also led to the exhaustion of petroleum, a non-renewable energy source, as polystyrene is a petroleum-derived product. Researchers from around the world have discovered a few techniques to take care of the polystyrene scraps, namely recycling and energy recovery techniques. Nevertheless, there are demerits involved with recycling techniques, such as they call for huge labor expenses in the separation process and cause water pollution, thereby decreasing the process sustainability. Owing to these demerits, the researchers have focused their attention on the energy recovery technique. Since petroleum is the main ingredient of polystyrene synthesis, the restoration of liquid oil from polystyrene via the pyrolysis method is a promising technique as the recovered oil has greater calorific value as compared to commercially available fuel. The present paper surveys the pyrolysis technique for polystyrene and the important process parameters that control the end product, like oil, gas, and char. The chief process parameters that are discussed in this review paper include the type of reactors, temperature, residence time, pressure, catalyst types, type of fluidizing gases, and their flow rate. A more recent technique of utilizing a solvent to perform pyrolysis and the effect of various process conditions on the product yield have been discussed. Apart from this, various outlooks to optimize the liquid oil recovery from polystyrene are also reviewed.

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Section: Process Parametersmentioning

confidence: 99%

Pyrolysis of Polystyrene Waste: A Review

Maafa

2021

Polymers

119

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“…Another parameter that can affect the yield and quality of the bio‐oil is the use of a catalyst during the pyrolysis process 83 . The catalyst could be derived from within the biomass or supplemented additionally 77 .…”

Section: Effect Of Different Pyrolysis Parameters On Acetic Acid Prod...mentioning

confidence: 99%

Production and separation of acetic acid from pyrolysis oil of lignocellulosic biomass: a review

Sarchami

Batta

Berruti

2021

Biofuels Bioprod Bioref

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Bio‐oil from lignocellulosic biomass pyrolysis is a promising feedstock as a precursor for the production of transportation fuels and value‐added chemicals. The presence of significant concentrations of oxygen, water, and acids makes it difficult to use bio‐oil directly as a transportation fuel without costly upgrading. The acidity of pyrolysis liquids is mainly derived from volatile acids, such as acetic acid, causing chemical instability and corrosion. The extraction of acids from bio‐oil can therefore offer strategies for improved applications and economic value. Moreover, acetic acid is a valuable reagent and the building block for several commercially important chemicals. This review presents the results of important research related to the production of bio‐oil‐derived acetic acid. The discussion is intended to summarize the effect of biomass type and pretreatment method, pyrolysis processing conditions, and separation techniques on acetic acid production via pyrolysis. On this basis, acetic acid characterization techniques are also presented along with an overview of acetic acid applications and economic considerations. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd

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“…The chemical composition of bio‐oil is analyzed by the gas chromatography/mass spectrometry (GC–MS, ISQ) with a TG‐5MS polar capillary column (30 m × 0.25 mm × 0.25 um). The surface chemical functional groups of bio‐chars are tested by the Fourier transform infrared spectroscopy (FTIR, Nicolet iS10, USA) 29 . The pore parameters of bio‐chars are detected by the Autosorb instrument using N 2 as adsorbate at 77 K 30 .…”

Section: Methodsmentioning

confidence: 99%

Catalytic pyrolysis of crofton weed: Comparison of their pyrolysis product and preliminary economic analysis

Jin

Cheng

2021

Env Prog and Sustain Energy

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Pyrolysis of crofton weed with or without catalyst is investigated in a microwave furnace to determine the effect of ZnO and Na2CO3 catalyst on the yields and properties of pyrolysis products. The ZnO and Na2CO3 are found to increase the yield of bio‐oil and decrease the content of carboxylic acid in bio‐oil. The result shows that catalytic pyrolysis can improve the quality of bio‐oil. The bio‐gas produced from catalytic pyrolysis has larger content of CO and less CO2 as compared to non‐catalytic pyrolysis, particularly for ZnO catalyst pyrolysis process. ZnO and Na2CO3 improve the pore structure of bio‐char in the catalytic pyrolysis process. Bio‐char produced from ZnO catalytic pyrolysis could be used as photocatalyst to degrade dye wastewater. Besides, catalytic pyrolysis system is profitable, based on preliminary economic analysis. Our findings provide a successful example of crofton weed converting into three useful pyrolysis product, which is worthy of further study.

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Thermochemical conversion of Phellinus pomaceus via supercritical fluid extraction and pyrolysis processes

Cited by 42 publications

References 63 publications

Pyrolysis of Polystyrene Waste: A Review

Pyrolysis of Polystyrene Waste: A Review

Production and separation of acetic acid from pyrolysis oil of lignocellulosic biomass: a review

Catalytic pyrolysis of crofton weed: Comparison of their pyrolysis product and preliminary economic analysis

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