Use this url to cite ETD: https://hdl.handle.net/20.500.14172/19743
Options
Stabilios pirolizės alyvos gamyba iš makrodumblių ir atliekinio plastiko
Type of publication (PDB)
Magistro darbas / Master thesis (ETD_MGR)
Type of publication
type::text::thesis::master thesis
Title
Stabilios pirolizės alyvos gamyba iš makrodumblių ir atliekinio plastiko
Other Title
Production of stable pyrolysis oil from macroalgae and waste plastics
Advisor
Other(s)
Darbo gynimo komisijos pirmininkas / Thesis Defence Board Chairman | |
Darbo gynimo komisijos narys / Thesis Defence Board Member | |
Darbo gynimo komisijos narys / Thesis Defence Board Member | |
Darbo gynimo komisijos narys / Thesis Defence Board Member | |
Darbo gynimo komisijos narys / Thesis Defence Board Member |
Extent
58 p.
Date Issued
2021-01-15
Field of Science
eLABa
80727097
Abstract
Plastikų gamybos apimtys kasmet didėja, jų didėjimą lemia tokios savybės, kaip lengvumas, patvarumas, nedidelės kainos ir platus pritaikymas. Plastikų tarnavimo laikas nėra ilgas, todėl didžioji dalis atliekų greitai atsiduria sąvartynuose. Plastikų atliekos kelia vis didesnį susirūpinimą, kadangi plastikai nėra biologiškai skaidūs, jiems suirti reikia ne vienerių metų taip pat plastikai teršia aplinką, neigiamai veikia ekosistemą. Pirolizė yra efektyvus būdas perdirbti plastiko atliekas ir tuo pačiu gauti naudingus produktus. Eksperimento metu atlikta lėta pirolizė atmosferiniame slėgyje, laipsniškai keliant temperatūrą, kaip žaliava naudojant polipropileno (PP) ir didelio tankio polietileno (HDPE) susmulkintas atliekas bei pridedant reagento (2 – etilheksil nitrato). Išanalizuota pirolizės proceso eiga, paskaičiuotos pirolizės produktų išeigos priklausomai nuo žaliavos rūšies ir reagento. Gautoms alyvoms atlikta GC – MS analizė, kurios metu identifikuoti alyvoje esantys junginiai. Alyvoms ir mišiniams nustatyti tankiai, klampiai, oksidaciniai stabilumai, frakcinės sudėtys ir kiti reikalingi kokybiniai rodikliai.
Plastic plays an important role in modern human life. Most plastic is used in the production of packaging and disposable tableware. The lifetime of these products is short and most of them become waste in a short period of time. Plastic waste is a growing concern as plastics are not biodegradable and they require hundreds of years to decompose. Moreover, plastics pollute the environment and the oeans, effect their ecosystem and harm animals in many ways. The best way to reduce plastic waste would be converting them into new products or energy source. Plastic waste pyrolysis is a process, where plastic material is heated in an inert atmosphere and at elevated temperature. During this process, the organic part of the plastic polymer material decomposes and generates liquids and gases, that are used as alternative fuels or raw materials. This method is suitable for complex polymer waste, that contains a number of highly mixed materials and prior seperation step is not needed. In this experiment, pyrolysis oils was produced of macroalgae, PP and HDPE plastics waste without and with reagent (2-ethylhexyl nitarte). The course of the pyrolysis process was analyzed and the yields of pyrolysis products were calculates depending on the type of raw material and reagent. The analysis using gas chromatography – mass spectrometry (GC – MS) of the pyrolysis oil was carried out to determine its composition and product distribution. Also for oils and mixtures were determined: density, viscosity, oxidation stability, fractional compasition and other necessary qualitative parameters.
Bibliographic Details
44
Coverage Spatial
Lietuva / Lithuania (LT)
Language
Lietuvių / Lithuanian (lt)
Defended
Taip / Yes
Access Rights
Prieigos embargo / Embargoed Access
File(s)gintare_vanagiene.pdf (1.84 MB) Embargo Accessuntil 2026-01-15