Compress low-molecular-weight gases to high pressures
This company’s single-shaft, vertical-split-casing turbocompressors are designed to handle a wide range of process gases for both onshore and offshore oil-and-gas applications that require ultra-high pressure processing, including the production of liquefied natural gas (LNG). The STC-SV compressors can handle volume flows from 150 to 280,000 ft3/min (250 to 480,000 m3/h), and produce a discharge pressure up to 1,000 bars (14,500 psi), making them ideal for applications involving hydrocracking, synthesis gas or gas storage and injection. These machines are designed according to API 617. The use of a barrel-type design allows for full maintenance without disconnecting process gas lines, says the company. Depending on the application, these turbocompressors can be driven by a steam turbine, gas turbine or electric motor. A smaller unit, called the STC-SV (S), is available as a single-stage machine. With the compressor, driver and auxiliaries constructed using a packaged-unit concept, this turbocompressor eases transport and reduces site installation work, realizing pressures up to 80 bars.— Siemens AG, Erlangen, Germany.