Degradation of polyethylene and polypropylene into fuel oil by using solid acid and non-acid catalysts

Sakata, Yusaku; Uddin, Md. Azhar; Muto, Akinori

doi:10.1016/s0165-2370(99)00013-3

Cited by 267 publications

(166 citation statements)

References 8 publications

Supporting

Mentioning

157

Contrasting

Unclassified

Order By: Relevance

“…The tertiary or chemical recycling includes a variety of processes that enable the generation of high value products such as fuel or chemicals [11,16,[19][20][21][25][26][27] . In this method, the plastic waste is processed to produce basic petrochemical compounds, which can be used as raw material for new plastics.…”

Section: Pyrolysismentioning

confidence: 99%

“…A wide variety of heterogeneous catalysts has been used and among them are: conventional solid acids (such as zeolites, silica-alumina, alumina and FCC catalysts (Fluid Catalytic Cracking)), mesostructured catalysts (such as MCM-41 etc. ), nanocrystalline zeolites (such as n-HZSM-5), among others [25,35,36,39] . Many studies have been carried out describing the cracking of pure polyolefins over various solid acids such as zeolites, clays, among others.…”

Section: Catalytic Pyrolysismentioning

confidence: 99%

See 1 more Smart Citation

Thermal and catalytic pyrolysis of plastic waste

2016

View full text Add to dashboard Cite

Section: Pyrolysismentioning

confidence: 99%

Section: Catalytic Pyrolysismentioning

confidence: 99%

Thermal and catalytic pyrolysis of plastic waste

2016

View full text Add to dashboard Cite

“…Sakata et al conducted various researches about the degradation mode of polyethylene after exposure to fuel oil. Unfortunately, the aging temperature used to accelerate the plausible degradation mechanism was excessive compared to the conditions used for the transportation of oil derivates [13,14]. Indeed, in these studies, the material was exposed up to T ¼ 4308C, temperature for which the polymer was in the molten state and even able to degrade according pyrolytic process.…”

Section: Introductionmentioning

confidence: 99%

Creep behavior of high density polyethylene after aging in contact with different oil derivates

Habas-Ulloa¹,

d’Almeida²,

Habas³

2010

Polymer Engineering & Sci

View full text Add to dashboard Cite

The creep behavior of a high density polyethylene (HDPE), currently used as raw material for pipe manufacture, was evaluated before and after exposure to oil derivates using transient rheometry. The creep behavior of the original HDPE was satisfactorily described using a generalized Kelvin-Voigt model based on two retardation times. The values of these critical times were quite different from each other, indicating a large distribution of macromolecular weight. The aging procedure was performed by immersing the polymer in two model fluids chosen to discriminate and understand the action of aromatic and paraffinic fractions of fuel derivatives (white oil, gas-oil). The batch operation was also carried out at two different temperatures to investigate the thermal activation of plausible degrading mechanisms. In the case of the aging performed in the paraffinic fluid, the polymer compliance continuously increased with the immersion duration. This behavior was attributed to a plasticization induced by the diffusion of the liquid in the polymer matrix. The same phenomenon was observed in the early stage of the HDPE aging carried out with the aromatic fluid.

show abstract

“…TPO contains a host of aliphatic and aromatic fractions with concentration of 49.54% and 16.54% respectively [2]. The aromatic nature of TPO is due to the aryl chain fragments from styrene butadiene rubber, aromatic ring splitting and the cyclation of olefins during the thermo chemical conversion process.…”

Section: Steam Distillationmentioning

confidence: 99%

“…Pyrolysis is one of the thermo chemical conversion process is utilized for the thermal degradation of waste tire in to three principal products like pyrolytic gas, oil and char at elevated temperature ranging from 300-900 0 C. The present study focused on the use of liquid products obtained from the tire pyrolysis as a fuel for wick based cook stove and lamp. Scrap tire pyrolysis oil composed of complex mixture of hydrocarbon consisting of C6-C37 (linear paraffins),C8-C13 (low concentration of alkenes), non-condensed butadiene, pentene, pentadiene and isoprene, high amount of aromatics, naphthenes and terpenes particularly limonene, benzene, toluene xylene, alkylated single ring aromatics [2]. The gas produced from the tire pyrolysis is called as pyrolytic gas, which mainly consist of hydrogen, carbon dioxide, carbon monoxide, methane, ethane, butane and other hydrocarbons.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Tire Pyrolysis Oil (Tpo) as a Fuel for Cook Stove and Lamps

Mohan

Kumar

Madav

2018

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

Abstract.Pyrolysis is an technology to derive value added products like pyrolytic oil, steel wire and carbon black, which works on the principle of thermo-chemical conversion of any carbonaceous feed stocks. The major factors affecting the pyrolysis are temperature, reactor configurations, residence time, heating source etc. A pilot plant study was conducted in a tire pyrolysis oil production industry located in Oyalapathy, Kerala for collecting the oil samples for the analysis. Tire pyrolysis oil (TPO) is a brownish colored, freely flowing liquid, medium viscosity with complex chemical composition. Due to its complex aromatic structure, presence of acids, aldehydes, oxygenated compounds hinders to apply in engine and stove as a fuel. Upgrading of hydrocarbons are necessary to obtain value added products and to derive thermally stable products. There are limited number of studies are carried out in the field of stove fuel production from hydrocarbon derived waste. An attempt was carried out to find the suitability of pyrolysis oil as a fuel in cook stove and oil lamps. The water boiling test was carried out to examine the boiling time for specific volume of water. The study shows that the TPO boils water in shorter time than kerosene and a clear comparison of two brand of fuels. The present study mainly includes the characterization like FTIR, GC-MS to investigate the components present in the oil and compare with diesel and kerosene. The commercialization and economic feasibility studies will be planned in future.

show abstract

Degradation of polyethylene and polypropylene into fuel oil by using solid acid and non-acid catalysts

Cited by 267 publications

References 8 publications

Thermal and catalytic pyrolysis of plastic waste

Thermal and catalytic pyrolysis of plastic waste

Creep behavior of high density polyethylene after aging in contact with different oil derivates

Investigation on Tire Pyrolysis Oil (Tpo) as a Fuel for Cook Stove and Lamps

Contact Info

Product

Resources

About