20.500.12556/DKUM-78847 Analiza varnosti obrata polimerizacije magistrsko delo Hazard analysis of polymerization plant Namen magistrskega dela je bil izvesti analizo varnosti obrata za proizvodnjo lepil v sodelovanju z zaposlenimi v podjetju. Prvi del magistrskega dela je obsegal HAZOP študijo obrata polimerizacije. Organizirali smo sestanke z zaposlenimi v podjetju, na katerih smo določili dele procesa, za katere je bila študija potrebna in s kombinacijami ključnih besed in procesnih parametrov iskali deviacije od običajnega obratovanja, ki po predpostavki HAZOP študije predstavljajo nevarnost. Odkrili smo 36 takšnih deviacij, med katerimi so bile tudi 4 z visoko stopnjo tveganja. Za odklone z nezaželenim tveganjem smo podali predloge za ukrepe, z implementacijo katerih bi podjetje lahko izboljšalo procesno varnost. V drugem delu magistrske naloge smo za eno od deviacij, ki se najpogosteje pojavljajo, to je razlitje kemikalije, izvedli simulacije z računalniškim programom ALOHA. Za razlito kemikalijo smo izbrali vinilacetat, ki predstavlja osnovno kemikalijo pri proizvodnji vinilnih polimerov, hkrati pa izkazuje precejšnjo toksičnost in vnetljivost. S programom smo ocenili vpliv količine razlite kemikalije in atmosferskih pogojev, kot so hitrost vetra, temperatura in oblačnost, na območje izpostavljenosti, znotraj katerega koncentracije presegajo mejne vrednosti AEGL-1, AEGL-2 in AEGL-3. Rezultati nakazujejo, da je območje izpostavljenosti največje ob kombinaciji visokih temperatur in močnega vetra, medtem ko je vpliv oblačnosti precej manjši. Ugotovili smo, da se območje izpostavljenosti prav tako močno poveča z naraščanjem površine razlitja, kar poudarja pomembnost zadržanja razlitja znotraj lovilnega platoja. The main purpose of this thesis was to perform a process hazard analysis of the adhesive production plant. The first part of the master's thesis included the HAZOP study of the polymerization plant. We organized several meetings with the company’s employees and determined the parts of the process, for which the study was needed. By combining standardized guide-words and process parameters, we identified possible deviations from the design intent. A total of 36 deviations were identified during the study, including 4 with a high risk level. For those deviations, several preventive measures were suggested, implementation of which could improve the overall process safety. During the second part of the thesis, we performed computer simulations of one of the most common deviations, i.e. chemical spillage. For simulation purposes, we were using computer program ALOHA. Vinyl acetate was chosen for the spilled chemical, as it is the basic chemical in the production of vinyl polymers and shows considerable toxicity and flammability. We assessed the impact of the amount of spilled chemical and atmospheric conditions, such as wind speed, temperature and cloudiness, on the threat zone, within which airborne concentrations exceed the AEGL-1, AEGL-2 and AEGL-3 values. The results indicate, that the threat zone increases sharply with temperature and wind speed, while the effect of cloud cover is much less significant. We found that the threat zone is highly influenced by the spill area, which emphasizes the importance of holding the spill within the containment dikes. HAZOP ALOHA procesna varnost polimerizacija simulacija tveganje HAZOP ALOHA Process safety Polymerization Simulation Risk true true false [J. Lipovec] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2021-03-12 12:41:48 2021-04-07 11:11:29 2022-08-09 19:52:27 0000-00-00 00:00:00 2021 0 Maribor 0 Maribor X, 61 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 628.5:66.012.095.26(043.2) 58688771 MAG_Lipovec_Jernej_2021.pdf MAG_Lipovec_Jernej_2021.pdf 1 904FBF01C9F6C8A1DF4F3B0958CB2F5C eb6eab717ea0aae27abefa493bdf642c87a714d6e0cb9696062ed10d000495fc c681a2ab-8fa7-11eb-bda7-00155d0001ca 20.500.12556/dkum/34e06a7a-e6f8-4adc-9b22-2d4af6962335 https://dk.um.si/Dokument.php?lang=slv&id=149528 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0