Gas coalescer vessel

The coalescer vessel is a carbon steel pressure vessel that separates liquid aerosols from a gas stream. Water, oil and fuel aerosols merge in the coalescing element, form larger droplets and run down to the bottom of the vessel, from where they are discharged through an automatic or manual drain.

It can be configured with one to three stages in the same vessel. Upstream, a baffle box—several deflectors at the gas inlet—removes contaminants and the largest droplets before they reach the filter element. After the element, a demister—a set of wire meshes that forms a dense body—adds a coalescing stage: the droplets strike the wires, agglomerate and fall by gravity to the bottom. This way the system also separates very fine sand and condensed hydrocarbons carried by the gas.

Each unit is designed for the process to ASME VIII Division 1, API, NACE and PED 97/23/EC, for low-, medium- and high-pressure compressed gases, with one or more elements and in a single-phase, two-phase or three-phase configuration. It has a quick-opening or bolted closure, custom instrumentation and, if needed, mineral wool thermal insulation. We manufacture it at our metal fabrication plant. The glass microfiber coalescing elements of the AeroSep line are in the industrial filters category.