scholarly journals Comparative Study on Plastic Materials as a New Source of Energy

2019 ◽  
Vol 56 (1) ◽  
pp. 41-46 ◽  
Author(s):  
Marius Constantinescu ◽  
Felicia Bucura ◽  
Roxana-Elena Ionete ◽  
Violeta-Carolina Niculescu ◽  
Eusebiu Ilarian Ionete ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Comparative Study ◽  
High Density Polyethylene ◽  
Calorific Value ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Pyrolysis Process ◽  
Heating Value ◽  
Maximum Test ◽  
Plastic Materials

The pyrolysis can be an attractive way to reduce the plastic waste and, in the same time, to obtain alternative conventional fuels. In this respect, four polymers (low-density polyethylene, high-density polyethylene, propylene and polystyrene) were used in the pyrolysis process. The experiments were carried out by using an in-house plant, which allowed a maximum test temperature of 450 �C. The product oil and the derived gas from the pyrolysis process were evaluated using different techniques, such as elemental analysis (EA), calorimetry, gas chromatography (GC), gas chromatography coupled with mass spectrometry (GC-MS). Furthermore, for a comparative study two catalysts, zeolite and lignite, were also used for the pyrolysis process, in order to observe their influences on the final products. The higher heating value obtained for the oil was in the 40.17-45.35 MJ/kg range, acceptable for the use of these oil as an alternative fuel for diesel engine. Also, the sulphur content from the obtained oil does not cause environment problems, being lower than the allowed limits (10 mg/L). In addition, the pyrolysis derived gas was rich in hydrocarbons, conducting to a high calorific value, in the 73.42 - 121.18 MJ/kg range.

scholarly journals Combustibles alternativos para motores de combustión interna obtenidos a partir de residuos plásticos

2019 ◽  
pp. 22-29
Author(s):  
José Manuel Riesco-Ávila ◽  
David Alejandro Rodríguez-Valderrama ◽  
Diana Marcela Pardo-Cely ◽  
Francisco Elizalde- Blancas
Keyword(s):  
High Density Polyethylene ◽  
Plastic Waste ◽  
Low Density Polyethylene ◽  
Distillation Process ◽  
Pyrolysis Process ◽  
Mechanical Recycling ◽  
Heavy Hydrocarbons ◽  
Plastic Materials ◽  
Rapid Pyrolysis

Of the different methods for recycling plastic, pyrolysis offers the possibility to overcome the limitations of mechanical recycling, which requires large amounts of clean, separate and homogeneous plastic waste to ensure the quality of the final product. Pyrolysis is the chemical decomposition of plastic materials by thermal degradation in the absence of oxygen. The plastic waste is introduced into a chamber, where it is subjected to high temperatures, and the gases generated are condensed in order to obtain a distillate hydrocarbon. This paper presents the results obtained from the pyrolysis of plastic waste mixtures of polypropylene, high density polyethylene, and low density polyethylene. In a first stage, the plastic waste is subjected to a rapid pyrolysis process at temperatures of 440-450 °C, obtaining a mixture of heavy hydrocarbons. Subsequently, these hydrocarbons are subjected to a distillation process, first at a temperature of 180 °C, where a hydrocarbon with properties similar to those of gasoline is obtained, and then at a temperature of 360 °C, yielding a hydrocarbon with properties similar to those of diesel.

scholarly journals Determinación de la ruta crítica para la síntesis Química de hidroxiapatita nanométrica

2019 ◽  
pp. 28-32
Author(s):  
José Manuel Riesco-Ávila ◽  
David Alejandro Rodríguez-Valderrama ◽  
Diana Marcela Pardo-Cely ◽  
Francisco Elizalde- Blancas
Keyword(s):  
High Density Polyethylene ◽  
Plastic Waste ◽  
Low Density Polyethylene ◽  
Distillation Process ◽  
Pyrolysis Process ◽  
Mechanical Recycling ◽  
Heavy Hydrocarbons ◽  
Plastic Materials ◽  
Rapid Pyrolysis

Of the different methods for recycling plastic, pyrolysis offers the possibility to overcome the limitations of mechanical recycling, which requires large amounts of clean, separate and homogeneous plastic waste to ensure the quality of the final product. Pyrolysis is the chemical decomposition of plastic materials by thermal degradation in the absence of oxygen. The plastic waste is introduced into a chamber, where it is subjected to high temperatures, and the gases generated are condensed in order to obtain a distillate hydrocarbon. This paper presents the results obtained from the pyrolysis of plastic waste mixtures of polypropylene, high density polyethylene, and low density polyethylene. In a first stage, the plastic waste is subjected to a rapid pyrolysis process at temperatures of 440-450 °C, obtaining a mixture of heavy hydrocarbons. Subsequently, these hydrocarbons are subjected to a distillation process, first at a temperature of 180 °C, where a hydrocarbon with properties similar to those of gasoline is obtained, and then at a temperature of 360 °C, yielding a hydrocarbon with properties similar to those of diesel.

scholarly journals Pembuatan minyak plastik dengan metode destilasi bertingkat

2020 ◽  
Vol 1 (1) ◽  
pp. 35-40
Author(s):  
Rahmady Setiawan ◽  
Untung Surya Dharma ◽  
Nopri Andriyansyah ◽  
Dwi Irawan ◽  
Repki Yanto
Keyword(s):  
High Density Polyethylene ◽  
Calorific Value ◽  
Complex Problem ◽  
Low Density Polyethylene ◽  
Distillation Process ◽  
Distillation Method ◽  
Oil Viscosity ◽  
Temperature Variations ◽  
Heating Value ◽  
Residual Material

Waste is unwanted residual material and is no longer used after the end of a process. garbage that cannot be decomposed (undegradable) which is rubbish that cannot rot like plastic, becomes a problem in itself, so much garbage is disposed of every day by humans becomes a very complex problem that is certainly very disturbing to the environment and ecosystem, therefore management is efficient and precise will be very helpful in efforts to reduce waste in the environment, by conducting a multilevel distillation process it is hoped that waste will become a fuel which is certainly more useful. The types of waste used in this study include: PET (Polyethylene terephthalate, HDPE (High Density Polyethylene), PVC (Polyvinyl Chloride), LDPE (Low Density Polyethylene, PP (Polypropylene), PS (Polystyrene). The purpose of this study is to know the value of Viscosity, Density, and Calorific Value of plastic oil which is processed by the distillation method stratified at temperature variations.From the tests conducted using temperature variations, the density value of oil sample C which is distilled at a temperature of 450o C in both tubes has the highest value, namely 0.844 gr / cm3.The highest heating value is in PP (Polyprophylene) oil of 43808.1 Joules / gram. The oil viscosity of sample C has the highest value of 1.9200 cSt.

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