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Gewählte Master / Diploma Thesis:

Johannes Misensky (2019): Analysis of upgrading specific waste plastics to high grade fuel by pyrolysis and design of a semi-batch reactor system.
Master / Diploma Thesis - Institut für Verfahrens- und Energietechnik (IVET), BOKU-Universität für Bodenkultur, pp 118. UB BOKU obvsg FullText

Data Source: ZID Abstracts
Abstract:
The use of plastic as a material heralded a new chapter for humanity. In the past, products had to be produced in complex, time-consuming ways, and sometimes, by manual labor. Plastic enabled us to mass produce quickly and with little energy. Today, plastic is an important part of everyday life for almost every product and industry. But, as so often stated, the devil is in the detail. While plastic is easily produced, disposal is complicated by the long shelf life of the material. This, coupled with a 26 fold increase in plastic production since 1964, leads to a concentration in the environment in which plastic causes massive environmental damage (Bauske, 2019). This problem is intensified by the fact that only 28% of the manufactured plastic is recycled. The remainder is either dumped in landfills or, as a non-insignificant part (32%), completely leaves the waste treatment chain. Both through landfills and via uncontrolled ways, a plastic terminus can be the oceans, where plastic waste can subsequently interact with aquatic life forms in a deleterious manner (Europäisches Parlament, 2018). One way of counteracting this circumstance is the upgrading of plastic waste by pyrolysis into a fuel. Not only would this reduce worldwide plastic waste, but it would also open new avenues of cascadic use. Based on the results of the master thesis of (Holzweber, 2018), this master thesis first sheds light on a batch process for the revaluation of selected plastic fractions. Subsequently, a switch to a semi-batch process, including transport technology, is developed and the first results are presented in a semi-continuous process. The mass balance of the produced products of the individual plastic fractions (HDPE and PP) shows that an increase in measured oil mass of up to 290%, compared to a batch process, is possible.

Beurteilende(r): Pfeifer Christoph
1.Mitwirkender: Tondl Gregor

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