The Effect of Cracking Temperature from a Mixture of HDPE and LDPE type Plastic Waste using Zeolite Catalyst on the Quality of Liquid Fuel Products

2020 ◽  
Vol 1500 ◽  
pp. 012088
Author(s):  
Pamilia Coniwanti ◽  
Indira Nur Sakinah ◽  
Fitri Hadiah ◽  
Farra Unzillah Kendari Putri ◽  
Roosdiana Muin ◽  
...  
2021 ◽  
Vol 23 ◽  
pp. 100872
Author(s):  
Dedy Hariadi ◽  
Sofyan M. Saleh ◽  
R. Anwar Yamin ◽  
Sri Aprilia
Keyword(s):  

2021 ◽  
Vol 1 (1) ◽  
pp. 50-69
Author(s):  
Wilson Uzochukwu Eze ◽  
◽  
Reginald Umunakwe ◽  
Henry Chinedu Obasi ◽  
Michael Ifeanyichukwu Ugbaja ◽  
...  

<abstract> <p>The world is today faced with the problem of plastic waste pollution more than ever before. Global plastic production continues to accelerate, despite the fact that recycling rates are comparatively low, with only about 15% of the 400 million tonnes of plastic currently produced annually being recycled. Although recycling rates have been steadily growing over the last 30 years, the rate of global plastic production far outweighs this, meaning that more and more plastic is ending up in dump sites, landfills and finally into the environment, where it damages the ecosystem. Better end-of-life options for plastic waste are needed to help support current recycling efforts and turn the tide on plastic waste. A promising emerging technology is plastic pyrolysis; a chemical process that breaks plastics down into their raw materials. Key products are liquid resembling crude oil, which can be burned as fuel and other feedstock which can be used for so many new chemical processes, enabling a closed-loop process. The experimental results on the pyrolysis of thermoplastic polymers are discussed in this review with emphasis on single and mixed waste plastics pyrolysis liquid fuel.</p> </abstract>


Author(s):  
José Manuel Riesco-Ávila ◽  
David Alejandro Rodríguez-Valderrama ◽  
Diana Marcela Pardo-Cely ◽  
Francisco Elizalde- Blancas

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.


2019 ◽  
Vol 33 (12) ◽  
pp. 12518-12526 ◽  
Author(s):  
Mingxue Su ◽  
Wenzhi Li ◽  
Qiaozhi Ma ◽  
Song Li ◽  
Tao Yang ◽  
...  

2018 ◽  
Vol 195 ◽  
pp. 01022 ◽  
Author(s):  
Muh. Yamin ◽  
Rudito ◽  
Andi Lisnawati ◽  
Mohammad Lutfi

The accumulation of rice husks (RH), oil palm empty fruit bunch (OPEFB), and plastic waste (PW) can reduce the fertility of the soil. The objective of this study was to compare the quality of the low density particle boards using that waste. Experimental design was used by testing the quality of particle boards with a substitution of 50 % by weight of the total mixes for each waste (RH and OPEFB) and 50% of PW with 3 replications. The results revealed that the quality of the low density particle boards based on water content, density, and modulus of rupture (MOR) tests meet the requirements of SNI 03-2105-2006, whereas the modulus of elasticity (MOE), thickness swelling, water absorption, and the tension perpendicular to surface tests do not comply to the requirements. This preliminary study revealed that the quality of particle boards using OPEFB was better than the particle boards using RH for building materials such as ceilings.


2017 ◽  
Vol 24 (3) ◽  
pp. 99-105 ◽  
Author(s):  
Ireneusz Pielecha ◽  
Jacek Pielecha ◽  
Maciej Skowron ◽  
Aleksander Mazanek

Abstract The process of fuel combustion in a diesel engine is determined by factors existing during liquid fuel injection and atomisation. The physicochemical properties of the fuel to a large extent decide upon the quality of this phase of cylinder fuelling. So it is important to ensure appropriate properties of a fuel affecting its atomisation and, as a result, combustion. The paper deals with the topic of diesel oil improvers and the analysis of their influence on atomisation and combustion indices. In the studies base diesel oil and a diesel fuel improved by a package of additives, were used. The process of conventional and improved fuel injection was analysed by using optical examinations. The amount of released heat was evaluated during the studies carried out on combustion. Significant aspects of the applied improvers in relation to fuel injection and its combustion have been indicated.


Recycling ◽  
2022 ◽  
Vol 7 (1) ◽  
pp. 2
Author(s):  
Aleksandr Ketov ◽  
Vladimir Korotaev ◽  
Natalia Sliusar ◽  
Vladivir Bosnic ◽  
Marina Krasnovskikh ◽  
...  

The recycling of end-of-life plastics is a problem, since small parts can be returned into circulation. The rest is burned, landfilled or recycled into low-quality heating oil by pyrolysis methods. The disadvantages of this method are the need to dispose the formed by-product, pyrolytic carbon, the poor quality of produced liquid fuel and the low productivity of the method associated with the periodicity of the process. In this work, methods of thermogravimetry and chromatography–mass spectrometry (GC-MS) have been used to study the co-pyrolysis products of low-density polyethylene (LDPE) and oxygen-containing substances at the pressures of 4–8 MPa and temperatures of 520–620 °C. Experiments have highlighted the conditions needed for producing of high-quality liquid fuel. Initial data have been prepared for the design of a continuous pyrolysis reactor to dispose polymer waste for the production of bio-oil which would be available to enter the petrochemical products market.


2021 ◽  
Vol 5 (2) ◽  
pp. 212-217
Author(s):  
Vasyl Kovalev ◽  
Volodumur Kalyuzhny ◽  
Vadum Gornostay

The results of an experimental study of liquid fuel flows in the tanks of a spacecraft during its rotation are presented. The analysis of structure and character of flows development on time is carried out, variants of graphic dependences approximation are offered. Graphical diagrams are presented, according to which it is convenient to present a three-dimensional nonlinear picture of non-stationary axisymmetric flow in a spherical reservoir, as well as methods of influencing flows with the help of internal baffles. Estimation of the obtained experimental data probability testifies to the rather high quality of the measurement results and the constructed picture of the currents in the spherical tank with internal baffles.


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