Centrifugal compressors features

Expansion turbines are related in many design features to the centrifugal compressor. The key exception being that the turbine receives a high pressure gas for expansion and power recovery to a lower pressure and is usually accompanied by the recovery of the energy from the expansion. For example, applications can be (1) air separation plants (2) natural gas expansion and liquefaction (for gas let-down in pipeline transmission to replace throttle valves where no... 

Centrifugal compressors are very common, being inherently simple and reliable. However, they do have special problems that merit careful consideration. These special features can be elucidated from their performance charts, an example being shown in Figure 9.5. All centrifugal compressors have performance charts that are similar in form. The two main points to note are as follows ... 

Many of the features of the Kellogg process, for example, centrifugal compressors, high-pressure steam systems, and high-pressure reforming, have subsequently been widely adopted by the ammonia industry. 

Turbines are a common feature on process plant, where they provide economical drives for rotating machinery, particularly centrifugal and axial pumps and compressors, as well as electrical generators in power stations. They use the expansion of hot, high-pressure gas or steam to produce mechanical power. 

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