Material and Energy Balance – AU-3 Atmospheric Distillation Unit (IOCL)

This repository presents a study of the material and energy balance for the AU-3 Atmospheric Distillation Unit at Indian Oil Corporation Limited’s Gujarat Refinery. The analysis is based on real operational data from a test run using 100% North Gujarat crude and includes both manual calculations and MATLAB-based visualizations.

📌 Project Overview

• Unit Studied: AU-3 Atmospheric Distillation Unit
• Location: Gujarat Refinery, Indian Oil Corporation Ltd.
• Feedstock: 100% North Gujarat Crude
• Tool Used: MATLAB (for calculation and visualization)

📄 Contents

• Material and Energy Balance IOCL REPORT.pdf
  → Manual calculation of material and energy balances, enthalpy assumptions, and furnace input estimation.

• Matlab Results IOCL Material Balance.pdf
  → MATLAB code and results including:

  • Flow normalization
  • Energy content computation
  • Furnace duty estimation
  • Visual plots for product distribution and energy balance

🧮 Key Features

• Normalization of actual product flow rates to match crude feed
• Enthalpy estimations based on operating temperatures and Cp values
• Simplified energy calculations for product streams
• Estimation of furnace input based on assumed thermal efficiency (85%)
• MATLAB visualizations for mass and energy flow representation

🎓 Academic Context

This project was carried out as part of the B.Tech Chemical Engineering curriculum at Ahmedabad University, under the course on Material and Energy Balance.

🧠 References

• AU-3 Unit Operating Manual, IOCL Gujarat Refinery
• Perry’s Chemical Engineers’ Handbook, 8th Edition
• Standard refinery process engineering practices

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Author: Khanjan Parekh
Date: July 2025