Predicting Pyrolysis Products of PE, PP, and PET Using NRTL Activity Coefficient Model

Fakhrhoseini, Seyed Mousa; Dastanian, Majid

doi:10.1155/2013/487676

Cited by 148 publications

(88 citation statements)

References 11 publications

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“…Results indicate that polypropylene gives maximum amount of liquid product that was 82% at lowest temperature increasing rate (6°C/min). All results confirm that the lower temperature increasing rate leads to higher liquid product [11]. Jane Pratoomyod et al; taken scrap or waste plastic as raw material into a reactor for thermal pyrolysis without using catalyst.…”

Section: Review On Plastic Pyrolysissupporting

confidence: 54%

A Review on Liquid Fuel Recovery from Waste Plastic Using Pyrolysis Process

Ghewade¹

2017

IJRASET

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The globally increasing demand for plastics is causing the increase in plastic wastes landfill which has serious environmental harms. Demand for plastic is increasing but the petroleum reserves are depleting and as plastics are obtained from petroleum, converting waste plastic into liquid hydrocarbon fuel is most suitable option for the minimizing the plastic waste which will either landfilled. Using Pyrolysis process we can convert plastic waste into liquid hydrocarbon fuel as this fuel has matching characteristics with the fuels like diesel or petrol, the process of pyrolysis is considered for conversion. In this paper the pyrolysis process is reviewed for different types of plastics and the process parameters that can affect the final end product that are gaseous, oil and char. The main parameters of the process are temperatures, type of reactors, type of fluidizing gas, pressure, catalysts, residence time.

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Section: Review On Plastic Pyrolysissupporting

confidence: 54%

A Review on Liquid Fuel Recovery from Waste Plastic Using Pyrolysis Process

Ghewade¹

2017

IJRASET

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“…Pyrolysis is also commonly associated with producing valuable tars (i.e. liquid oils and waxes) at relatively moderate temperatures ranging between 500 to 650 o C, with yields ranging between 75 to 80 wt.% Fakhrhoseini and Dastanian, 2013). The residual output of char produced could be easily used as a fuel or a feedstock for other petrochemical processes.…”

Section: Introductionmentioning

confidence: 99%

A review on thermal and catalytic pyrolysis of plastic solid waste (PSW)

Al–Salem

Антелава

Constantinou

et al. 2017

Journal of Environmental Management

830

435

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Plastic plays an important role in our daily lives due to its versatility, light weight and low production cost. Plastics became essential in many sectors such as construction, medical, engineering applications, automotive, aerospace, etc. In addition, economic growth and development also increased our demand and dependency on plastics which leads to its accumulation in landfills imposing risk on human health, animals and cause environmental pollution problems such as ground water contamination, sanitary related issues, etc. Hence, a sustainable and an efficient plastic waste treatment is essential to avoid such issues. Pyrolysis is a thermo-chemical plastic waste treatment technique which can solve such pollution problems, as well as, recover valuable energy and products such as oil and gas. Pyrolysis of plastic solid waste (PSW) has gained importance due to having better advantages towards environmental pollution and reduction of carbon footprint of plastic products by minimizing the emissions of carbon monoxide and carbon dioxide compared to combustion and gasification. This paper presents the existing techniques of pyrolysis, the parameters which affect the products yield and selectivity and identify major research gaps in this technology. The influence of different catalysts on the process as well as review and comparative assessment of pyrolysis with other thermal and catalytic plastic treatment methods, is also presented.

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“…Researchers have studied the influence of pyrolysis conditions, including temperature, reactor type, residence time, pressure, catalyst, and fluidizing‐gas composition and flow rate, on the product yield distributions for a number of plastics . To date, however, little is known about the fundamental chemistry and kinetics of plastic pyrolysis.…”

Section: Introductionmentioning

confidence: 99%

The Chemistry and Kinetics of Polyethylene Pyrolysis: A Process to Produce Fuels and Chemicals

et al. 2020

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The annual global production of plastics reached 335 million metric tons in 2016. Most waste plastics are landfilled or enter the natural environment in an uncontrolled manner. Pyrolysis can convert waste plastics, such as polyethylene (PE), to smaller hydrocarbons that can be used as fuels or chemicals. In this work, pyrolysis of PE was studied by thermogravimetric analysis (TGA) and in a fluidized‐bed reactor. A kinetic model based on two parallel first‐order random‐scission steps was developed on the basis of the TGA results. PE was pyrolyzed in a fluidized‐bed reactor over the temperature range of 500–600 °C and at residence times of 12.4–20.4 s. The yield of gas‐phase products increased from 8.2 to 56.8 wt %, and the yield of liquid‐phase products decreased from 81.2 to 28.5 wt % as the temperature increased from 500 to 600 °C. Detailed analysis of the gas‐ and liquid‐phase products revealed their potential as precursors for production of fuels and chemicals. Gas‐phase products included hydrogen, C1–C4 paraffins, C2–C4 olefins, and 1,3‐butadiene. The major liquid‐phase products were mono‐olefins and cycloalkanes/alkadienes with smaller amounts of n‐paraffins, isoparaffins, and aromatics. The carbon‐number distribution of the fluidized‐bed pyrolysis products suggested contributions of nonrandom reactions of random‐scission fragments at low conversion.

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Predicting Pyrolysis Products of PE, PP, and PET Using NRTL Activity Coefficient Model

Cited by 148 publications

References 11 publications

A Review on Liquid Fuel Recovery from Waste Plastic Using Pyrolysis Process

A Review on Liquid Fuel Recovery from Waste Plastic Using Pyrolysis Process

A review on thermal and catalytic pyrolysis of plastic solid waste (PSW)

The Chemistry and Kinetics of Polyethylene Pyrolysis: A Process to Produce Fuels and Chemicals

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