Abstract: Taking typical Saudi blended crude oil as the research object, this paper discussed the influence of different crude oil processing schemes on refining-chemical integration total processing flow through analyzing its composition, processing route and chemical raw material optimization. The results showed that the optimization of oil refining process and the production of chemical products could be coordinated under the principle of “appropriate olefins feedstock produces more olefins and appropriate aromatics feedstock produces more aromatics” in order to realize overall optimization of refining and chemical products production. In the new chemical refinery, the technology like DCC, RLA, C₄ process and normal and isomeric naphtha separation could improve the product structure, reduce the fuel oil production, and product more chemical raw materials and appropriate aromatic products. By optimizing the product scheme of refining and chemical integration, we can improve the whole plant economy, reduce the operating cost and enhance the enterprise competitiveness.

Key words: petrochemical coplex, configuration, optimization, refining-chemical integrity