EC-Series expander compressors for hydrocarbons, petrochemicals

In compressor-loaded expanders, the expander is loaded by a single-stage centrifugal compressor through a common shaft. It’s a design that powers a wide range of applications. And because the turboexpander is skid-mounted with its auxiliary support system, it simplifies transport and reduces installation time and cost. Providing inlet pressures of up to 200 bar (a) and with a rated power of up to 23 MW, our EC-Series turboexpanders handle all industrial gases and hydrocarbon gas mixtures, including condensing streams. Variable inlet guide vanes (IGV) used in our EC-Series ensure optimal flow rates even when your process conditions change well beyond the original design point. The EC-Series is available in compressor-load configurations using either oil bearings or active magnetic bearings (ECM).

In nearly one thousand units worldwide, our customers are experiencing a robust expander compressor solution operating even under the challenging conditions. Our versatile expander compressors are at the heart of your processes, for example in hydrocarbon applications such as:

• recovery of liquefied petroleum gas (LPG)
• natural gas liquids (NGL)
• dew-point control (DPC)
• liquefied natural gas (LNG)
• nitrogen rejection

• ethylene/olefin recovery
• ammonia purification
• carbon monoxide purification
• propane dehydrogenation
• hydrogen recovery