Design and operation of a modern polish plant for plastic waste recycling through the degradative depolymerization process. A case study
Authors:
- Andrzej Duda,
- Arkadiusz Fenicki,
- Patryk Molski,
- Elżbieta Szostak,
- Piotr Duda
Abstract
The paper describes an installation for the degradative depolymerization of polyolefin materials obtained from wastes, hereinafter also referred to as depolymerization for simplicity. The plant, on an industrial scale, is one of the few operating in Poland. However, it is one of the most modern plants in this industry. Design solutions, construction of particular technological lines, compliance with national and EU regulations and the high level of process safety were described in this paper as well as compared to other plants of this type in Poland. Different solutions were presented in drawings and photos of the plant and in fragmentary technological diagrams. The types of waste and the methods of their processing by the plant were also characterized in accordance with the applicable regulations. The waste throughput is from 2000 to 4000 kg/h, while the efficiency of the depolymerization installation itself is 1500 kg/h. The industrial-scale depolymerization process is carried out in one or two stages: by homogenization (extraction) at a temperature up to 200 °C and depolymerization at temperatures up to 400 °C. The obtained products (energy goods) are sold for further processing. The processes, devices and methods are characterized by novel, innovative solutions, covered by a number of patents, which are also described below. The advantage of the presented technology is the substantial simplification of the process and thereby a considerable reduction in investment costs. Among others, the processes of distillation and rectification (low- and negative-pressure) were abandoned. This paper presents the design and operation of a Polish packaging-waste recycling plant owned by the GreenTech Poland company. The main goal of the plant activity is the mechanical processing of wastes coming from selective waste collection and post-production facilities. The sorting line is equipped with an auxiliary dust-removal system, which consists of the filter assembly as well as a system of pipelines and fittings connecting the filter to selected devices of the line where dust appears. The research can be clasified in the area of production engineering belonging to the scientific discipline of Mechanical Engineering.
- Record ID
- CUTfa8c861a38f74f14bac3a792d4c815aa
- Publication categories
- ;
- Author
- Other language title versions
- Design and operation of a modern polish plant for plastic waste recycling through the degradative depolymerization process. A case study
- Journal series
- Energies, ISSN , e-ISSN 1996-1073, Biweekly
- Issue year
- 2020
- Vol
- 13
- No
- 24
- Pages
- [1-18]
- Article number
- 6620
- Other elements of collation
- rys.; schem.; tab.; Bibliografia (na s.) - 17-18; Bibliografia (liczba pozycji) - 23; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 13, Iss. 24
- Keywords in English
- degradative depolymerization process, processing of polyolefin plastics, safety level of technological installations, recycling waste collection schemes, waste management, sorting, shredding, thermal processing
- DOI
- DOI:10.3390/en13246620 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1073/13/24/6620 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTfa8c861a38f74f14bac3a792d4c815aa/
- URN
urn:pkr-prod:CUTfa8c861a38f74f14bac3a792d4c815aa
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.