Improving the Quality of Pyrolysis Oil from Co-firing High-density Polyethylene Plastic Waste and Palm Empty Fruit Bunches

`Eureka' lemons [Citrus limon (L.) Burro. f.] treated for commercial storage were held for 6 months at 13C. One-half of the fruits were individually sealed in high-density polyethylene (HDPE) plastic film and half not sealed. The HDPE-seaIed lemons showed little change in the water relations characteristics, while unsealed lemons lost weight and decreased in water potential throughout the storage period. The maturity indices in the two treatments were generally similar during the first 3 months of storage, after which maturation of wrapped fruit was slower than that of the control. The overall marketable quality of the fruit was higher in HDPE-sealed lemons than in unsealed. From these results, it appears feasible to introduce seal packaging in packing lines where lemons will be placed in extended storage.

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

Revista de Energía Química y Física ◽

10.35429/jcpe.2019.20.6.22.29 ◽

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.

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Effect of Temperature on Pyrolysis Oil Using High-Density Polyethylene and Polyethylene Terephthalate Sources From Mobile Pyrolysis Plant

Frontiers in Energy Research ◽

10.3389/fenrg.2020.541535 ◽

2020 ◽

Vol 8 ◽

Author(s):

Ruktai Prurapark ◽

Kittwat Owjaraen ◽

Bordin Saengphrom ◽

Inpitcha Limthongtip ◽

Nopparat Tongam

Keyword(s):

Polyethylene Terephthalate ◽

High Density Polyethylene ◽

Main Product ◽

Carbon Number ◽

High Density ◽

Raw Material ◽

Effect Of Temperature ◽

Pyrolysis Oil ◽

Boiling Points ◽

And Performance

This research aims to study the effect of temperature, collecting time, and condensers on properties of pyrolysis oil. The research was done be analyzing viscosity, density, proportion of pyrolysis products and performance of each condenser towers for the pyrolysis of high-density polyethylene (HDPE) and polyethylene terephthalate (PET) in the mobile pyrolysis plant. Results showed that the main product of HDPE resin was liquid, and the main product of PET resin was solid. Since the pyrolysis of PET results in mostly solid which blocked up the pipe, the analysis of pyrolysis oil would be from the use of HDPE as a raw material. The pyrolysis of HDPE resin in the amount of 100 kg at 400, 425, and 450°C produced the amount of oil 22.5, 27, and 40.5 L, respectively. The study found that 450°C was the temperature that gives the highest amount of pyrolysis oil in the experiment. The viscosity was in the range of 3.287–4.850 cSt. The density was in the range of 0.668–0.740 kg/L. The viscosity and density were increased according to three factors: high pyrolysis temperature, number of condensers and longer sampling time. From the distillation at temperatures below 65, 65–170, 170–250, and above 250°C, all refined products in each temperature range had the carbon number according to their boiling points. The distillation of pyrolysis oil in this experiment provided high amount of kerosene, followed by gasoline and diesel.

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Application of Nondestructive Testing in Quality Controlling of High-Density Polyethylene Silicore Plastic Duct

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.470.693 ◽

2013 ◽

Vol 470 ◽

pp. 693-696

Author(s):

Bai Yan Gong ◽

Yu Hong Lu ◽

Juan Ren

Keyword(s):

Nondestructive Testing ◽

Product Quality ◽

High Density Polyethylene ◽

High Density ◽

Important Indicator ◽

Breaking Elongation ◽

Sampling Inspection ◽

Weight Impact ◽

Falling Weight

Some key quality problems has been exposed in several years of quality supervision sampling inspection of industry products for HDPE silicore plastic duct, such as dimension, breaking elongation, performance of falling weight impact and ring stiffness. Quality consistency is an important indicator in evaluating product quality. Nondestructive testing can be used to evaluate the quality of the whole pan and batch of silicore plastic duct, and it will play important role in product quality controlling.

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ChemInform Abstract: Heterogeneously Catalyzed Strategies for the Deconstruction of High Density Polyethylene: Plastic Waste Valorization to Fuels

ChemInform ◽

10.1002/chin.201511328 ◽

2015 ◽

Vol 46 (11) ◽

pp. no-no

Author(s):

Anand S. Burange ◽

Manoj B. Gawande ◽

Frank L. Y. Lam ◽

Radha V. Jayaram ◽

Rafael Luque

Keyword(s):

High Density Polyethylene ◽

Plastic Waste ◽

High Density ◽

Waste Valorization

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Effect of thawing on the quality of frozen mechanically deboned meat

Agricultural and Food Science ◽

10.23986/afsci.72914 ◽

1990 ◽

Vol 62 (5) ◽

pp. 407-415

Author(s):

L. Riihonen ◽

P. Linko

Keyword(s):

High Density Polyethylene ◽

High Density ◽

Quality Product

The effect of thawing conditions on the quality of mechanically deboned beef (MDB) and mechanically deboned pork (MDP) recovered using a pressure-based Inject Star deboner was investigated. Samples were recovered using a freshly disinfected machine, and immediately packed in 3 kg portions in high density polyethylene (HDPE)-coated cartons or in Cryovac vacuum bags. Three methods of thawing were used: microwave thawing and thawing at +4°C and at +21°C. All samples were analysed chemically and microbiologically immediately after thawing. Microwave thawing resulted in a better quality product (P

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Recycling High-Density Polyethylene (HDPE) into construction materials as a key step in plastic waste reduction: case of Kigali City

Rwanda Journal of Engineering Science Technology and Environment ◽

10.4314/rjeste.v1i1.2s ◽

2018 ◽

Vol 1 (1) ◽

Author(s):

Dominique Ingabire ◽

Fulgence Ntihemuka ◽

Gitare Mugabo ◽

Remy Serge Isabane ◽

Théogene Turatimana

Keyword(s):

High Density Polyethylene ◽

Construction Materials ◽

Plastic Waste ◽

High Density ◽

Waste Reduction ◽

Reduction Case

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DRY RICE HUSK FILLER EFFECT TO TENSILE BEHAVIORS OF RECYCLED HIGH-DENSITY POLYETHYLENE (HDPE)-BASED GREEN COMPOSITES

Journal of Southwest Jiaotong University ◽

10.35741/issn.0258-2724.56.4.9 ◽

2021 ◽

Vol 56 (4) ◽

pp. 82-91

Author(s):

Dalhar Susanto ◽

Mochamad Chalid ◽

Widyarko ◽

Intan Chairunnisa ◽

Cut Sannas Saskia

Keyword(s):

Oryza Sativa ◽

Tensile Properties ◽

Rice Husk ◽

High Density Polyethylene ◽

Building Materials ◽

Natural Fiber ◽

Oryza Sativa L ◽

Plastic Waste ◽

High Density ◽

Asian Rice

The possibility of using plastic waste to manufacture hybrid bio-composite materials with the dry husk of Asian rice (Oryza sativa L.) is investigated. The most polluted and unsustainable plastic waste is High-Density Polyethylene (HDPE) due to its single-use, which decreases in quality if it is reused is selected. The mixtures chosen are local natural fiber and easy to find, potentially a preliminary study of a composites building material. Furthermore, to improve the tensile properties of this hybrid bio-composite material, an additional organic filler is used, such as rice husk (Oryza sativa L.) in a combination of 10%, 12%, and 15%. Samples for this study were processed using the hot press methods based on ASTM D882. Tested for tensile strength, modulus young, yield stress, and elongation is carried out to see an increase in the performance of the biocomposite material. The test results show that the best tensile properties are samples with 12% rice husk, resulting in excellent sample compatibility proofed by Scan Electron Microscopy to study bio-morphological composites. This project has shown that the composites based on natural fiber will be potential building materials due to their improved tensile properties.

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Pembuatan Bahan Bakar Diesel dari Limbah Plastik HDPE dengan Proses Pirolisis

Reka Buana Jurnal Ilmiah Teknik Sipil dan Teknik Kimia ◽

10.33366/rekabuana.v6i1.2251 ◽

2021 ◽

Vol 6 (1) ◽

pp. 23-29

Author(s):

Taufik Iskandar ◽

Sinar Perbawani Abrina Anggraini ◽

Melinda Melinda

Keyword(s):

Diesel Fuel ◽

High Density Polyethylene ◽

Plastic Waste ◽

High Density ◽

Raw Material ◽

Process Time ◽

Original Form ◽

Petroleum Processing ◽

Pyrolysis Process ◽

Optimal Data Analysis

Indonesia menduduki posisi ke dua setelah cina penghasil sampah plastik terbesar di dunia. Dimana salah satu limbah plastik tersebut adalah HDPE (High Density Polyethylene). Sedangkan plastik merupakan produk hasil pengolahan minyak bumi yang dapat direcycle ke bentuk semulanya karena bahan baku pembuatan limbah plastik adalah nafta yang merupakan salah satu unsur dari minyak bumi. Salah satu solusi yang diperlukan adalah recycle dengan mengubah limbah plastik menjadi bahan bakar dengan proses pirolisis. Pirolisis merupakan salah satu proses terbaik dari recycle limbah plastik, dengan pertimbangan memahami sifat limbah plastik HDPE. Penelitian ini menggunakan alat pirolisis dengan variable suhu proses yaitu 300⸰C, 325⸰C, dan 350⸰C, waktu proses pirolisis yaitu 2 dan 4 jam. Dari proses pirolisis diperoleh hasil volume bahan bakar diesel yaitu pada suhu 300⸰C sebanyak 95 ml, suhu 325⸰C sebanyak 100 ml, dan suhu 350⸰C sebanyak 145 ml. Dari hasil analisa data optimal untuk suhu dan waktu optimum proses pirolisis limbah plastik HDPE yaitu pada suhu 325⸰C selama 2 jam, bahan bakar diesel yang didapat memiliki kadar abu 0,044 (b/b), dan kadar air 0,031(%vol). ABSTRACTIndonesia is in second place after China, the largest plastic waste producer in the world. Where one of the plastic wastes is HDPE (High-Density Polyethylene). Meanwhile, plastic is a product of petroleum processing that can be recycled to its original form because the raw material for making plastic waste is naphtha, which is an element of petroleum. One solution that is needed to recycle by converting plastic waste into fuel by the pyrolysis process. Pyrolysis is one of the best processes for recycling plastic waste, with consideration of understanding the nature of HDPE plastic waste. This study used a pyrolysis tool with process temperature variables, namely 300⸰C, 325⸰C, and 350⸰C, the pyrolysis process time was 2 and 4 hours. From the pyrolysis process, the results of the volume of diesel fuel are at a temperature of 300 ⸰C as much as 95 ml, a temperature of 325 C as much as 100 ml, and a temperature of 350 ⸰C as much as 145 ml. From the results of the optimal data analysis for the optimum temperature and time of the HDPE plastic waste pyrolysis process, which is at a temperature of 325⸰C for 2 hours, the obtained diesel fuel has an ash content of 0.044 (w / w), and a moisture content of 0.031 (vol%).

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