Influence of process parameters of fluidized catalytic cracking (FCC) on the quality of basic products : diploma thesis

Autor: Juraković, Matea
Přispěvatelé: Stipanelov-Vrandečić, Nataša
Jazyk: chorvatština
Rok vydání: 2023
Předmět:
Popis: Proces fluidiziranog katalitičkog krekiranja (engl. fluidized catalytic craking (FCC)) jedan je od najvažnijih sekundarnih procesa rafinerijske prerade nafte. U Rafineriji nafte Rijeka INA d.d., FCC postrojenje izgrađeno je 1981. godine prema američkoj tehnologiji UOP, a sastoji se od katalitičke sekcije, sekcije za frakcioniranje, sekcije koncentracije plina te sekcije za merkaptansku oksidaciju (engl. merox) plina i benzina. Osnovna svrha procesa je cijepanjem ugljikovodičnih molekula težih frakcija nafte (ostatka procesa hidrokrekiranja, vakuumskog plinskog ulja) dobiti lakše i vrijednije produkte ugljikovodika pri visokoj temperaturi i umjerenom tlaku u prisustvu fino raspodijeljenog zeolitnog katalizatora. Glavni proizvod procesa je FCC benzin, jedna od temeljnih sastavnica motornog benzina za komercijalnu upotrebu te ukapljeni naftni plin (UNP), koji sadrži visok udio olefina, posebice propilena, vrijedne petrokemikalije. Stoga se danas sve više pažnje tijekom FCC procesa usmjerava i na iscrpak propilena. U ovom radu cilj je bio analizirati svojstva ulazne sirovine FCC procesa, pratiti procesne veličine tj. parametre tijekom probne proizvodnje te utvrditi njihov utjecaj na svojstva proizvoda, posebice na kvalitetu FCC benzina. The fluidized catalytic cracking process (FCC) is one of the most important secondary processes in oil refinery processing. In the Rijeka INA oil refinery , the FCC plant was built in 1981 to the American UOP technology, and consists of a catalytic section, a fractionation section, a ga s concentration section and merkaptane oxidation section (merox) of gas and gasoline. The main purpose of the process is to split hydrocarbon molecules of heavier fractions of oil (hydrocraking residue, vacuum gas oil) to obtain lighter and more valuable hydrocarbon products at high temperature and moderate presure in the presence of a finely dispersed zeolite cataylist. The main products of the process are FCC gasoline, one of the main components of motor gasoline for commercial use, and liquid petroleum gas (LPG), which contains a high fractions of olefins, especially propylene, valuable petrochemical. Therefore, more attention is focused on the extractio n of propylene in the FCC process. In this paper, the goal was to analyze the properties of the input raw material of the FCC process, to monitor the process variables (parameters) during trial production and to determine their influence on the product properties, especially on the quality of the FCC gasoline.
Databáze: OpenAIRE