Sample interview questions: Can you discuss your experience with refinery process economics and cost analysis?
Sample answer:
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Utilized Aspen HYSYS for Process Modeling and Optimization:
- Developed accurate process models representing refinery units, including distillation columns, heat exchangers, reactors, and compressors.
- Conducted sensitivity analyses to evaluate the impact of process variables on key performance indicators (KPIs) such as yield, selectivity, and energy consumption.
- Optimized process conditions to maximize economic profitability while considering constraints related to product quality, safety, and environmental regulations.
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Conducted Techno-Economic Feasibility Studies:
- Evaluated the economic viability of refinery projects by analyzing capital costs, operating expenses, revenues, and project risks.
- Prepared detailed cost estimates for equipment, construction, utilities, and labor.
- Determined project profitability metrics such as net present value (NPV), internal rate of return (IRR), and payback period.
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Performed Cost Analysis for Refinery Operations:
- Analyzed historical cost data to identify cost drivers and areas for improvement.
- Developed cost models to estimate variable and fixed costs associated with different refinery processes and products.
- Conducted variance analyses to investigate deviations between actual and budgeted costs and implemented corrective actions to control expe… Read full answer