Catalytic Degradation of High-Density Polyethylene over Different Zeolitic Structures

Manos, George; Garforth, Arthur A.; Dwyer, John

doi:10.1021/ie990512q

Cited by 216 publications

(183 citation statements)

References 17 publications

(32 reference statements)

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“…The influence of reaction conditions, including temperature, ratios of HDPE to catalyst feed, and flow rates of fluidizing gas, was examined. Manos et al (2000) studied the catalytic degradation of high density polyethylene to hydrocarbons over different zeolites. The product range was typically between C 3 and C 15 hydrocarbons.…”

Section: Introductionmentioning

confidence: 99%

Recovery of hydrocarbon liquid from waste high density polyethylene by thermal pyrolysis

Kumar

Singh

2011

Braz. J. Chem. Eng.

239

117

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-Thermal degradation of waste plastics in an inert atmosphere has been regarded as a productive method, because this process can convert waste plastics into hydrocarbons that can be used either as fuels or as a source of chemicals. In this work, waste high-density polyethylene (HDPE) plastic was chosen as the material for pyrolysis. A simple pyrolysis reactor system has been used to pyrolyse waste HDPE with the objective of optimizing the liquid product yield at a temperature range of 400ºC to 550ºC. Results of pyrolysis experiments showed that, at a temperature of 450ºC and below, the major product of the pyrolysis was oily liquid which became a viscous liquid or waxy solid at temperatures above 475ºC. The yield of the liquid fraction obtained increased with the residence time for waste HDPE. The liquid fractions obtained were analyzed for composition using FTIR and GC-MS. The physical properties of the pyrolytic oil show the presence of a mixture of different fuel fractions such as gasoline, kerosene and diesel in the oil.

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Section: Introductionmentioning

confidence: 99%

Recovery of hydrocarbon liquid from waste high density polyethylene by thermal pyrolysis

Kumar

Singh

2011

Braz. J. Chem. Eng.

239

117

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“…The various methods of plastic waste recycling [21], thermal and/or catalytic degradation of plastic waste to gas and liquid products are the most promising to be developed into a commercial polymer recycling process.…”

Section: Introductionmentioning

confidence: 99%

“…These way waste plastics could be regarded as a cheap source of material. Because pure thermal degradation demands relatively high temperatures and its products require further processing for their quality to be upgraded, catalytic degradation of plastic waste offers considerable advantages [21][22][23][24][25][26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Cover of Cylinder Lattice Plastic Convert into Fuel

Sarker¹,

Rashid²

2013

ILCPA

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Waste plastic of cylinder lattice to liquid fuel production process was performing two step processes. 1 st step process was perform muffle furnace with ceramic crucible and 2 nd step process was perform glass reactor with condensation unit. Thermal degradation process was performing with furnace and temperature was 410 ºC and reactor temperature was 420 ºC. Muffle furnace was use for solid hard shape of plastic melting purpose and glass reactor was use for liquid slurry to produce vapor purpose. Liquid slurry to produce vapor was condensed and collected liquid fuel and fuel density is 0.75 g/ml. Liquid fuel production conversation rate was 71.05 %. Fuel was analysis by GC/MS and carbon chains obtain C 3 to C 23 from GC/MS chromatogram. Fuel color is light yellow and fuel is ignited.

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“…Chemical recycling is virtually a thermal method by which the long alkyl chains of polymers are broken into a mixture of lighter hydrocarbons. This is one of the prospective ways to utilize waste polymers [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Fractional Distillation Process Utilized to Produce Light Fractional Fuel from Low Density Polyethylene (LDPE) Waste Plastic

Sarker¹,

Rashid²,

Rahman³

et al. 2012

TOEFJ

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Plastics are not easily biodegradable; and because of these characteristics they can remain under landfill and water for a very long period of time. All over the world only 6% of waste plastics are recycled and the rest of all waste plastics are dumped into landfills. An experiment was conducted in a laboratory scale batch process under Labconco's fume hood utilizing low density polyethylene (LDPE). The experiment was carried out to obtain a hydrocarbon fuel product utilizing thermal degradation. Many research studies have successfully demonstrated that waste plastics such as low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene (PP) and polystyrene (PS) can be converted to valuable liquid hydrocarbon fuels. For experimental purposes we used 500 gm of LDPE as raw materials. This particular experiment is a two step process; the first step process involves extracting hydrocarbon fuels as mixture of both short and long chain hydrocarbon compounds. During the second step the fuel obtained in the first process is refractionated by thermal degradation process utilizing a distillation column. This process yields a short hydrocarbon chain liquid fuel that has similar properties to gasoline grade fuels. Analysis of these fuels was conducted by Gas Chromatography and Mass Spectrometer (GC/MS), FT-IR Spectrum 100 and Differential Scanning Calorimeter (DSC). The results show that the produced fuels are good quality fuels with high energy content. ASTM test result indicates that fuel has low sulfur level (3.2 ppm) and the fuel hydrocarbon range shown by GC/MS analysis is C 4 -C 10 .

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Catalytic Degradation of High-Density Polyethylene over Different Zeolitic Structures

Cited by 216 publications

References 17 publications

Recovery of hydrocarbon liquid from waste high density polyethylene by thermal pyrolysis

Recovery of hydrocarbon liquid from waste high density polyethylene by thermal pyrolysis

Cover of Cylinder Lattice Plastic Convert into Fuel

Fractional Distillation Process Utilized to Produce Light Fractional Fuel from Low Density Polyethylene (LDPE) Waste Plastic

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