Turbine-driven steam
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I have a modest question: when a turbine is used to compress air, must the steam inlet pressure be higher than the air outlet pressure? By how much should it generally be higher? Can low-pressure steam, such as superheated 10 barg steam, be used to produce gas at a higher pressure (such as 15 barg)? Thank you!
There’s no such thing. Whether a turbine can drive a compressor depends mainly on the power of the turbine, rather than on the pressure driven by the turbine.
What kind of turbine is it, what are the requirements for compressed air, is the turbine a prime mover, and what about the compressed air equipment?
A turbine is a prime mover that uses steam as power; it can serve as a driver for other machinery and pumps. The device used to compress air is an air compressor.