Mastering Downstream Economics: A Deep Dive into EHY2102 Aspen HYSYS Petroleum Refining Unit Operations
Unlocking the complexities of Atmospheric Distillation, Vacuum Units, and FCC feed preparation through rigorous simulation.
- Hydrogenation (Exothermic): Saturates aromatics and olefins on metal sites (Ni, Co, Mo, W).
- Cracking (Endothermic): Breaks C-C bonds on acidic sites (amorphous silica-alumina or zeolites).
8. Reporting, documentation, and deliverables for EHY2102
- Provide process flow diagram (PFD) showing major equipment, stream names, temperatures, pressures, and flow rates.
- Include material and energy balances (summary table).
- Show product assays and key quality metrics (IBP, FBP, density, sulfur).
- List simulation assumptions: property package, pseudo-component definitions, efficiencies, pressure drops.
- Include sensitivity charts (reflux vs duty, feed stage vs purity) and optimizer results.
- Provide conclusions: design recommendations, expected product yields, and next steps (pilot testing or dynamic control study).
- Using the Gibbs reactor for equilibrium-limited reforming reactions.
- Modeling recycle gas compressors (performance curves vs. fixed ratio).
- Simulating catalyst regeneration (continuous vs. semi-regenerative).
- Autothermal reactions (exothermic – you must add a quench stream or intercooler).
- Catalyst deactivation factors (e.g., linear decay over 365 days).
