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Single Shaft Vertical Split Turbocompressors
This product line is suitable for a wide range of process gases and meets customers’ requirements in all types of industries, especially on/offshore oil & gas and downstream applications and LNG. Siemens centrifugal barrel-type turbocompressors feature a flexible, reliable and robust design – the perfect solution for higher pressures.
Electrical, canned and oil-free
The compressor series STC-ECO meets the challenges of upstream dirty-gas compression and other demanding applications which have traditionally suffered from poor seal reliabilty. STC-ECO is a family of hermetically sealed, canned motor/compressors suitable for application in the upstream, midstream and downstream parts of the Oil & Gas industry. The integration of a high speed motor and a multistage centrifugal compressor allows minimizing the number of interfaces to basically: the power feed to the motor and the suction and dicharge nozzle of the compressor. Visionary craftsmanship founded on Siemens' intellectual power in rotating equipment and electrical engineering. Blending of several leading technologies into a simple concept with unique benefits. Born out of creativity and harnessed through rigorous component qualification and unit testing in close cooperation with major oil companies. STC-ECO is Siemens response to the need to reduce the environmental footprint and life cycle cost in Oil & Gas operations. Therewith the STC-ECO is our platform for further evolution of the concept towards subsea compression.
|Volume flows from 250 to 10,000 m3/h|
|Discharge pressure up to 220 bar|
|Speed up to 13,000 rpm|
|Electric motor drive (canned, variable speed)|
|Active magnetic bearing technology|
Due to flexible design and sophisticated technology, Siemens STC-ECO compressors represent the following benefits to strengthen your industrial processes:
Representing a quantum leap in compressor technology, the hermetically sealed motor-compressor STC-ECO has been co-developed by Shell and Siemens, two companies enjoying a long-standing mutually cooperative relationship. Key to the success of the project, the Shell research team has been part of the joint development group. The concept was later qualified, developed, improved and installed with other major international and national oil companies as well. To date, the STC-ECO is the only API-conforming sealless compression solution available for dirty-gas applications without need for clean-gas supply.
Siemens has several references with the STC-ECO operating with dirty process gas in modulating mode, with our first reference established in 2006. During this time, the units were subjected to a wide range of contaminants, including sand and water - but also high CO2 und H2S content. Several in-house and site tests support our confidence in providing its robustness and achieving the desired 5-years maintenance interval, which have been among the key performance criteria in the development of the STC-ECO. The STC-ECO is delivered as a compact, modular and mobile skid-mounted unit available with an integrated air cooler or water cooler.
Perfect protection and process control via flexible Siemens control systems:
Electrical, canned and oil-free