Advanced distillation column design. Revamping distillation columns requires a solid process design background, particularly when conducting evaluations of existing equipment and data. GTC advises clients to understand where they are on the reflux to theoretical stage curve prior to setting the design strategy for a column. The lower the stage count, the higher the reflux rate required. However, the exact sensitivity will affect considerations in the revamp and design of your distillation tower. For each distillation column revamp design, GTC conducts dedicated sensitivity analysis to optimize the column performance among capacity, efficiency and energy consumption requirements. This analysis quantifies product yield/purity improvement at the same energy consumption and energy efficiency improvement at the same product yield/purity.