Fuel production from waste polystyrene via pyrolysis: Kinetics and products distribution

Nisar, Jan; Ali, Ghulam; Shah, Afzal; Iqbal, Munawar; Khan, Rafaqat Ali; Sirajuddin, Sirajuddin; Anwar, Farooq; Ullah, Raqeeb; Akhter, Mohammad Salim

doi:10.1016/j.wasman.2019.03.035

Cited by 112 publications

(44 citation statements)

References 58 publications

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“…At the temperature ranges between the 450°C-500°C, was most favourable for gaseous or char products. The obtained results are in reasonable agreement with previous researcher's report [4,13,14].…”

Section: Reaction Temperaturesupporting

confidence: 93%

“…Further increase in the reaction time from 90-120 min, which is most suitable for pyro gas production and the pyrolysis product yields at a reaction time of 120 min, was found to be 70.14 % of the liquid yield, 19.80 % of pyro gas and 10.06 % of char residue respectively. The observed results are in good association with reported literature [13,14,15].…”

Section: Reaction Timesupporting

confidence: 93%

“…The complete conversion (T-100%) of feedstock material was achieved until 456.37°C. J. Nisar et al 2019 studied thermal analysis of polystyrene at different heating rates and reported that the temperature increases from 387°C to 428°C[13].…”

mentioning

confidence: 99%

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Recycling of Plastic Wastes in Tiruvannamalai City: Thermal Cracking of Waste Plastic into Gasoline Products under Various Operating Conditions

Selvaganapathy¹,

Muthuvelayudham²

2020

AEES

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Due to the environmental threats of municipal plastic waste generation, plastic waste is obvious to recycle for a satisfying plastic-free environment. Lots of techniques are available for plastic waste recycling; however, the thermal cracking was found as a powerful technology to decrease plastic waste pollution simultaneously, producing petroleum-derived products. The objective of this investigation is to convert high-quality gasoline fuel from the plastic-based glucose bottles (GB) by the thermal cracking process at moderate reaction conditions. In this investigation, the waste plastic was thermally cracked in a batch reactor at a temperature range between 350-500°C, and the reaction time varied from 60-120 min, respectively. As a result, the most extreme yield percentage of liquid fuel 72.80% was obtained at an optimum temperature of 450°C and 90 min of reaction time. The derived liquid fuel contains mainly of aromatic functional groups (C=C stretch), and that is made out of gasoline-range hydrocarbons with a carbon number of C 4-C 28. Henceforth, the produced liquid fuel was termed as aromatic liquid hydrocarbon fuel (ALHF), and that would be recommended for use as commercial gasoline fuel.

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Section: Reaction Temperaturesupporting

confidence: 93%

Section: Reaction Timesupporting

confidence: 93%

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Recycling of Plastic Wastes in Tiruvannamalai City: Thermal Cracking of Waste Plastic into Gasoline Products under Various Operating Conditions

Selvaganapathy¹,

Muthuvelayudham²

2020

AEES

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“…Mixed types of plastic cannot be processed using these methods. In tertiary recycling, polymer waste is converted into new products with properties completely different from the original substance, namely converting it into liquid and gaseous fractions through thermal or catalytic degradation (Astrup et al, 2009; Nisar et al, 2019; Rotliwala and Parikh, 2011). Pyrolysis is an attractive method owing to its simplicity and ability to convert mixed feedstock into valuable products (Koo and Kim, 1993; Maroušek et al, 2015; Ni and Chen, 2014).…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis of polystyrene waste for recovery of combustible hydrocarbons using copper oxide as catalyst

et al. 2020

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The present work is focused on pyrolysis of polystyrene waste for production of combustible hydrocarbons. The experiments were performed in an indigenously made furnace in the presence of a laboratory synthesised copper oxide. The pyrolysis products were collected and characterised. The Fourier transform infrared spectra showed that the liquid fraction contains C–H, C–O, C–C, C=C and O–H bonds, which correspond to various aliphatic and aromatic compounds. Gas chromatography–mass spectrometry traced compounds ranging from C1 to C4 in the gaseous fraction, whereas in the liquid fraction 15 components ranging from C3 to C24 were detected. From the results it has been concluded that CuO as a catalyst not only increased the liquid yield but also reduced the degradation temperature to great extent. Fuel properties of the pyrolysis oil were determined and compared with standard values of commercial fuel oil. The comparison suggested potential application of pyrolysis oil for domestic and commercial use.

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“…In general, pyrolysis is necessary to support combustion, and pyrolysis products can be used as fuel [ 17 ]. As a consequence, it will be helpful to understand the combustion performance of EPS by studying its pyrolysis characteristics [ 18 ] and provide guidance for the utilization of EPS waste in renewable energy [ 19 ]. Jiao et al [ 20 ] carried out the EPS pyrolysis in nitrogen, and the results showed that EPS had only one stage of mass loss.…”

Section: Introductionmentioning

confidence: 99%

Energy Utilization of Building Insulation Waste Expanded Polystyrene: Pyrolysis Kinetic Estimation by a New Comprehensive Method

Zhang

et al. 2020

Polymers

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Expanded polystyrene (EPS) has excellent thermal insulation properties and is widely applied in building energy conservation. However, these thermal insulation materials have caused numerous fires because of flammability. Pyrolysis is necessary to support combustion, and more attention should be paid to the pyrolysis characteristics of EPS. Moreover, pyrolysis is considered to be an effective method for recycling solid waste. Pyrolysis kinetics of EPS were analyzed by thermogravimetric experiments, both in nitrogen and air atmospheres. A new method was proposed to couple the Flynn–Wall–Ozawa model-free method and the model-fitting method called the Coats–Redfern as well as the particle swarm optimization (PSO) global algorithm to establish reaction mechanisms and their corresponding kinetic parameters. It was found that the pyrolysis temperature of EPS was concentrated at 525–800 K. The activation energy of EPS in nitrogen was about 163 kJ/mol, which was higher than that in air (109.63 kJ/mol). Furthermore, coupled with Coats–Redfern method, reaction functions g(α) = 1 − (1 − α)3 and g(α) = 1 − (1 − α)1/4 should be responsible for nitrogen and air reactions, respectively. The PSO algorithm was applied to compute detailed pyrolysis kinetic parameters. Kinetic parameters could be used in further large-scale fire simulation and provide guidance for reactor design.

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Fuel production from waste polystyrene via pyrolysis: Kinetics and products distribution

Cited by 112 publications

References 58 publications

Recycling of Plastic Wastes in Tiruvannamalai City: Thermal Cracking of Waste Plastic into Gasoline Products under Various Operating Conditions

Recycling of Plastic Wastes in Tiruvannamalai City: Thermal Cracking of Waste Plastic into Gasoline Products under Various Operating Conditions

Pyrolysis of polystyrene waste for recovery of combustible hydrocarbons using copper oxide as catalyst

Energy Utilization of Building Insulation Waste Expanded Polystyrene: Pyrolysis Kinetic Estimation by a New Comprehensive Method

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