APPLICATION OF REFINERY LP MODELS – OPTIMIZING PRODUCT EXPORT TO THE FREE MARKET

Sažetak LP modeli za optimiranje prerade nafte i transporta imaju široku primjenu na područjima operativnog planiranja prerade, planiranja razvoja i u svim procesima donošenja odluka vezanih uz djelatost nabave sirovina, preradu, kvalitetu, količine i cijene proizvoda i sirovina te njihove distribuciju, plasman i organizaciju prodajne mreže. Rezultati optimiranja rafinerijskih LP modela predstavljaju korisnu pomoć prilikom procjena isplativosti i donošenja odluka vezanih za unapređenje rafinerijske marže jer omogućuju optimiranje proizvodnje prema zahtjevima tržišta uz respektiranje tehnoloških resursa, s ciljem postizanja maksimalne rafinerijske marže i minimalnih troškova. Cilj rada je prikaz mogućnosti LP modela kao alata u uvjetima zadovoljavanja proizvodnje fiksne količine produkata, koja se u praksi može odnositi na potražnju na domaćem i/ili ugovorenom izvoznom tržištu, a optimirana je dodatna proizvodnja za plasman na drugim tržištima. Navedeni pristup optimiranju proizvodnje proveden je na primjeru optimiranja rada RN Rijeka i strukturi cijena mediteranskog tržišta.Abstract LP models for optimizing oil processing and transportation have a wide application in the area of operative processing planning, development planning, and in all processes of decision making associated with feed supply, processing, quality, volumes and prices of products and feeds, and their distribution, marketing, and sales network organization. Results of optimizing refinery LP models present a useful assistance while estimating cost effectiveness and making decisions regarding the advancement of refinery margin, enabling the optimization of production according to market requirements, while respecting technological resurces, for the purpose of achieving maximum refinery margin and minimal costs. The purpose of the paper is to present the possibilities of LP model as tools under conditions of meeting the production of a fixed volume of products, which, in practice, may refer to the demand on the local and/or fixed export market, while optimising additional production for placing on other markets. The said approach to production optimization has been implemented on the example of optimizing the operation of Rijeka Oil Refinery and the price structure of the Mediterranean market