20.500.12556/DKUM-45429 PROIZVODNJA FORMALINA NA OKSIDNEM KATALIZATORJU PRODUCTION OF FORMALIN ON OXIDE CATALYST V okviru diplomske naloge, smo izvedli raziskovalno nalogo proizvodnje formalina na oksidnem katalizatorju. Proces proizvodnje formalina poteka v podjetju Nafta Petrochem, d.o.o. Za industrijsko proizvodnjo formalina obstajata dva procesa. Oba procesa imata enako začetno vstopno surovino, metanol. Prvi proces poteka s srebrovim katalizatorjem, zato ga imenujemo srebrov proces. V diplomski nalogo smo dali poudarek drugemu procesu, tako imenovanemu oksidnemu procesu. Proizvodnja formalina poteka v Nafti Petrochem zgolj po oksidnem postopku, kateri temelji na uporabi kovinsko-oksidnega katalizatorja in sveže vode. Cilj diplomske naloge je bila modifikacija proizvodnje formalina v absorpcijskem delu proizvodnje. Trenutna proizvodnja poteka tako, da v absorpcijski del proizvodnje dovajajo svežo vodo. V modifikaciji smo uporabili prečiščeno odpadno vodo, ki jo podjetje Nafta Petrochem, d.o.o zavrže kot odpadni produkt drugega procesa. Procesa smo simulirali z uporabo programa Aspen Plus. Odpadna voda vsebuje določene količine metanola in ogljikovega dioksida, ki nimata vpliva na absorpcijski del. Med proizvodnjo se sprosti veliko toplotnega toka, kar se uporabi za proizvodnjo pare. Za proces proizvodnje formalina smo izvedli še toplotno integracijo in ekonomsko analizo. As a part of our diploma we have researched the production of formalin by the catalytic oxidation. The process of formalin production takes place in company Nafta Petrochem d.o.o. Two processes are used in the industrial production of formalin. Both involve methanol as the initial raw material. The first process includes a silver catalyst and is thus called the silver process. But in our diploma we have dealt with the other, the so-called oxide process. Nafta Petrochem uses only this process, which is based on a metal oxide catalyst and fresh water. The goal of diploma was the modification of formalin production in the absorption part of the production. During current production, fresh water is added to the absorption part. In modification we have used the refined waste water, which Nafta Petrochem discards as a waste product of another process. Processes were simulated using the programme Aspen Plus. Waste water contains a certain amount of methanol and carbon dioxide, which does not affect the absorption part. During production a lot of heat current is released and is then used in the steam production. We have also carried out the heat integration and economic analysis of formalin production. absorpcija formalin odpadna voda Aspen Plus oksidni proces absorption formalin waste water Aspen Plus oxide process true true false [S. Žunič] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2014-08-26 08:19:50 2014-09-11 17:27:23 2022-05-15 03:07:28 2021-05-02 03:35:40 2014 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 537.533.75:628.179.2(043.2) 18214422 URN:SI:UM:DK:IUCUZV4T VS_Zunic_Sandra_2014.pdf VS_Zunic_Sandra_2014.pdf 1 11B08E47D41D0CE351F8985574AB0AC6 120f9d963590e9c5cba673e2a700bcbabe76582c4e4e6897509f52b2ab71346f 2ea8a9c9-7c0b-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=66807 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0