Practical Distillation: Principles, Operation and Troubleshooting

Overview

Distillation is the most widely used separation process in refineries, gas plants and petrochemical complexes, and it accounts for a large share of their energy consumption. Crude units, vacuum units, stabilisers, splitters, fractionators and NGL columns all depend on distillation to produce products that meet specification. When columns run well, they deliver the right purities at minimum energy cost. When they flood, weep, foam, foul or lose efficiency, the result can be off-specification products, reduced throughput, high energy use and unplanned shutdowns. Practical troubleshooting skills are therefore valuable for every process and operations engineer.

This course provides a practical understanding of distillation principles, column operation and systematic troubleshooting. Participants learn vapour-liquid equilibrium, relative volatility, material and energy balances, McCabe-Thiele and shortcut methods, and the effect of reflux ratio, feed condition and pressure on separation. The course covers tray and packing hydraulics, capacity limits, flooding, entrainment, weeping and efficiency, as well as reboilers, condensers and control schemes. It also explains troubleshooting tools such as gamma scans, temperature and pressure surveys and hydraulic rating, column revamps, energy optimisation and case studies from crude, vacuum and light ends columns in operating plants.

Objectives

• Explain vapour-liquid equilibrium, volatility and the basis of separation
• Apply material and energy balances and shortcut design methods
• Understand the effect of reflux, feed condition and pressure on separation
• Evaluate tray and packing hydraulics, capacity limits and efficiency
• Operate reboilers, condensers and column control systems effectively
• Troubleshoot flooding, weeping, foaming and fouling with field data
• Identify energy savings and revamp opportunities in existing columns

Who should attend

Training methodology

The course combines clear explanation of distillation principles with calculation exercises and real troubleshooting cases from operating plants. Participants perform material balances, construct McCabe-Thiele diagrams, estimate minimum reflux and stages, and rate tray and packing hydraulics using spreadsheets. Field data such as temperature profiles, pressure drops and gamma scan results are interpreted in groups to diagnose column problems and recommend actions. Photographs of damaged trays, fouled packing and internals support learning. Each day ends with a short quiz and discussion of column problems at participants' own sites.

Programme outline

Dates and fees

Certificate

Frequently asked questions