Modélisation de l'hydrocraquage

摘要: Hydrocracking is a catalytic cracking process converting high-boiling petroleum fractions into lower-boiling and more valuable ones. It carried out on bifunctional catalyst combining both metal phase an acid phase. On the phase, hydrogenation/dehydrogenation reactions take place while protonation/deprotonation, isomerization occur. To optimize yield of desired products, hydrocracking modeling essential. The developed model considers hydrotreated feedstock composed aromatic, naphthenic paraffinic hydrocarbons. Its purposes are to realize relevant molecular reconstruction effluents kinetic representative industrial context. As analytical techniques not yet powerful enough detect quantify in detail all components effluents, required. proposed method create first set molecules thanks results provided by high-temperature two-dimensional gas chromatography. Then, depending molecules’ boiling point, shared three groups: naphtha cut, oil cut “heavy cut”. For each them, particular applied: direct use results, statistical entropy maximization respectively.For model, goals introduce aromatic hydrocarbons consider phases. So first, reaction mechanism aromatics has been defined implemented. Secondly for based Single-Event approach associated with Lateral Chain improved only but also Finally, allows simulate conditions.