Refinery vacuum distillation units (VDUs) use ejector systems to establish and maintain distillation-column pressure for capturing valuable crude fractions and reducing vacuum residuum. Reliable ...

There is commonly a tradeoff in performance when a standard motive steam nozzle retrofit alters the original supply nozzle position. New nozzle technology has no such tradeoff. When deployed, new ...

This article introduces a CDU-VDU configuration tailored for grassroots refineries, decoupling stripping and rectification sections via a dedicated flash drum to enable steam-free rectification.