Influence of time and temperature on pyrolysis of plastic wastes in a semi-batch reactor

López, A.; Marco, I. de; Caballero, B.M.; Laresgoiti, M.F.; Adrados, A.

doi:10.1016/j.cej.2011.07.037

Cited by 306 publications

(167 citation statements)

References 34 publications

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“…An experiment with municipal mixed plastic wastes showed that the best combination of temperature and residence time was 500 o C and 15 -30 minutes in order to achieve total conversion of plastics residue [5]. Another experiment with municipal plastic wastes also demonstrated the effects of temperature and time, however the maximum temperature applied in the research was 450 o C. The characteristics of collected pyrolytic liquid were comparable to those of commercial oil (gasoline, diesel and kerosene) [6].…”

Section: Introductionmentioning

confidence: 77%

Utilization of Plastics Waste Oil as Partial Substitute for Kerosene in Pressurized Cookstoves

Saptoadi¹,

Pratama²

2015

IJESD

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Section: Introductionmentioning

confidence: 77%

Utilization of Plastics Waste Oil as Partial Substitute for Kerosene in Pressurized Cookstoves

Saptoadi¹,

Pratama²

2015

IJESD

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“…In the pyrolysis process (heating in Manuscript received July 18, 2014, revised October 18, 2014 an oxygen free atmosphere), the organic components of the materials are decomposed generating liquid and gaseous products, which can be useful as fuels and/or feedstock of chemicals for other chemical processing [5]. The yield and the composition of the products influence by a range of pyrolysis process parameters, including the type of waste, reactor system, gas residence time, contact time, heating rate, temperature, pressure ranges, presence of catalyst and presence of hydrogen gas or hydrogen donor compound [6]- [9].…”

Section: Introductionmentioning

confidence: 99%

Mixed Plastic Wastes Pyrolysis in a Fluidized Bed Reactor for Potential Diesel Production

Aida¹,

Salmiaton²,

Nur³

2015

IJESD

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Abstract-Disposing of waste to landfill has becoming undesirable to the legislation pressures, rising costs and the poor biodegradable quality of polymer used. Feasible study on converting mixed plastic wastes by applying catalytic pyrolysis into valuable products had been carried out. Thermogravimetric analysis under various heating rates and particle sizes were determined. A 15 g/h of fluidized bed lab scale of fast pyrolysis unit was used. The pyrolysis processes were carried out at temperature of 400º C for 2 hours in non-catalytic and catalytic conditions with ratio catalyst to mixed plastic waste of 10:90. The properties of liquid products were analysed and compared using Fourier Transform Infrared Spectroscopy (FTIR) and High-Pressure Liquid Chromatography (HPLC). Under the experimental conditions, the maximum liquid yields with and without catalyst were 20 and 35 ml, respectively. FTIR results revealed that those functional groups detected are similar with commercial diesel together with HPLC results indicating diesel concentration.Index Terms-Mixed plastic wastes, pyrolysis, catalytic, diesel. I. INTRODUCTIONThe problem of solid waste disposal is growing throughout the world, as a result of industrialization and population growth. The huge population increase couple with the improved living conditions of people lead to a dramatically increase of the consumption of plastics worldwide. The major usages of plastic are packaging, households and domestic products, electrical and electronic goods as well as building, construction and automotive industries. It was estimated that 170 million tons of plastics were produced worldwide during the year 2003 [1]. Based on statistics for the Western Europe, the annual 2003 total consumption of plastic products was estimated at 48.8 million tons corresponding to 98 kg/capita [2]. In the United States, the total amount of plastic in municipal solid waste (MSW) was approximately 30 million tons, which was represented as 11.7% of total MSW in 2006 [3]. Recycling plastic wastes by chemical reactions such as pyrolysis has made it possible to recover enormous energy recovery [4].Pyrolysis could be an alternative to landfill or incineration for these rejected streams. In the pyrolysis process (heating in Manuscript received July 18, 2014, revised October 18, 2014 an oxygen free atmosphere), the organic components of the materials are decomposed generating liquid and gaseous products, which can be useful as fuels and/or feedstock of chemicals for other chemical processing [5]. The yield and the composition of the products influence by a range of pyrolysis process parameters, including the type of waste, reactor system, gas residence time, contact time, heating rate, temperature, pressure ranges, presence of catalyst and presence of hydrogen gas or hydrogen donor compound [6]- [9].Temperature has been the most influenced factor and has been one of the common studied operating parameter affecting the process of thermal cracking of the plastics, and as a consequence has a strong ...

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“…Effect of temperature on pyrolysis yields (wt%). (López et al, 2011a) In an other research, Chinese researchers (Lin, 2009) found that with a fluidized-bed reactor system, excellent heat and mass transfer, and much less proneness to clogging with molten polymer could be reached at 390 °C. The technology used gave a nearly constant temperature throughout the reactor.…”

Section: Issues Of Chemical Composition In Waste Pyrolysismentioning

confidence: 99%

“…Many investigations dealt with this issue, but the results are not in harmony with each other every time. A Spanish research group found (López et al, 2011a) that by raising pyrolysis temperature, gas yields significantly increase to the detriment of liquid yields. 460 °C was the lower temperature at which total conversion could be achieved.…”

Section: Issues Of Chemical Composition In Waste Pyrolysismentioning

confidence: 99%

Looking Behind the Process of Pyrolysis in Waste Management: Questions on the Composition and Quality of End-Product and Their Answers by Meas of Analytical Chemistry

Lányi¹,

Molnár²,

Vano³

et al. 2014

HAE

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Recycling technologies gained increased importance in the past decades, since environmental issues and the questions of depleting natural resources. Wastes may be considered as resources of valuable secondary raw materials. This literature review aims at compiling the information available on questions arising from the differences between the chemical composition of traditional fuels and chemical industrial raw materials, together with the analytical chemical methods being able to answer these questions. Issues of technical optimisation, the composition of end-products, and their dependence on the technical parameters of pyrolysis will also be discussed.

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Influence of time and temperature on pyrolysis of plastic wastes in a semi-batch reactor

Cited by 306 publications

References 34 publications

Utilization of Plastics Waste Oil as Partial Substitute for Kerosene in Pressurized Cookstoves

Utilization of Plastics Waste Oil as Partial Substitute for Kerosene in Pressurized Cookstoves

Mixed Plastic Wastes Pyrolysis in a Fluidized Bed Reactor for Potential Diesel Production

Looking Behind the Process of Pyrolysis in Waste Management: Questions on the Composition and Quality of End-Product and Their Answers by Meas of Analytical Chemistry

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