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Title:Analiza varnosti obrata polimerizacije : magistrsko delo
Authors:Lipovec, Jernej (Author)
Novak-Pintarič, Zorka (Mentor) More about this mentor... New window
Krajnc, Peter (Co-mentor)
Files:.pdf MAG_Lipovec_Jernej_2021.pdf (3,70 MB)
MD5: 904FBF01C9F6C8A1DF4F3B0958CB2F5C
 
Language:Slovenian
Work type:Master's thesis/paper (mb22)
Typology:2.09 - Master's Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract: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.
Keywords:HAZOP, ALOHA, procesna varnost, polimerizacija, simulacija, tveganje
Year of publishing:2021
Place of performance:Maribor
Publisher:[J. Lipovec]
Number of pages:X, 61 f.
Source:Maribor
UDC:628.5:66.012.095.26(043.2)
COBISS_ID:58688771 New window
Views:130
Downloads:27
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:KTFMB - FKKT
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:12.03.2021

Secondary language

Language:English
Title:Hazard analysis of polymerization plant
Abstract: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.
Keywords:HAZOP, ALOHA, Process safety, Polymerization, Simulation, Risk


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