CONSTRAINTS COMPLICATE CENTRIFUGAL COMPRESSOR DEPRESSURIZATION

Bill Key Hoover & Keith Inc. Houston Frank L. Colbert Paragon Engineering Services Inc. Houston During an emergency shutdown, safe depressurization of a centrifugal compressor requires a design that considers all of the process and mechanical limitations. Process schemes can limit the depressurization rate while mechanical constraints might require a faster rate. In complex facilities, centrifugal compressors operate at high revolutions per minute and discharge pressures. Because large amounts

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