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Ammonia storage tank compressor

Q: I need compressor(s) for an ammonia storage tank. The NH3 gas from tank has about 18,000 kg/hr at 1.03 Barab. and -25ºC (at compressor inlet). Required discharged pressure is about 16.0 Barab. Normally I use oil filled screw compressors, but due to the high flow rate can I use a centrifugal type as well? Do you expect power saving if we use centrifugal type compared with screw type?

A: A centrifugal compressor should work well. The estimated power for your service is 3,600 kW, which should be competitive with the flooded screw type.

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