Increase separation efficiency with enhanced slug catcher internals

Gas facilities use slug catcher vessels to separate arriving gas and liquids. These vessels are typically three-phase separators designed with vane-type mist eliminators. Mist eliminators are not highly efficient in eliminating the liquid carryover from the slug catchers, which will affect downstream separation processes, such as acid gas removal units. This article discusses enhancements created for the slug catcher’s internals to achieve higher separation efficiency and minimize the process design, sizing, material grade and future inspection and maintenance impact on downstream processing units at Saudi Aramco’s Tanajib gas plant project in Saudi Arabia. Issues with existing slug catche